This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1127

Ktor Version

1.1.4

Ktor Engine Used(client or server and name)

Apache

JVM Version, Operating System and Relevant Context

1.8, macOS Mojave and Linux Mint, IDEA 2019.1.2 CE

Feedback

I'm accessing and API that requires me to set Content-Type for all requests, but I'm getting io.ktor.http.UnsafeHeaderException: Header Content-Type is controlled by the engine and cannot be set explicitly

Current implementation:

val client = HttpClient(Apache) {
        install(JsonFeature) {
            serializer = GsonSerializer()
        }
        install(Logging) {
            level = LogLevel.HEADERS
        }
        defaultRequest {
            header("Content-Type", "application/vnd.api+json")
        }
    }

get("/test") {
            client.get<String>("url...") {
                headers {
                    // other headers
                }
            }
        }

Ktor: 2.0.1
Tested on: iPhone 7 (15.1)

Code example (can try to do mini sample if needed):

val client = HttpClient {
  install(ContentNegotiation) {
    json()
  }
  defaultRequest {
    headers.appendIfNameAbsent(HttpHeaders.ContentType, ContentType.Application.Json.toString())
  }
}

client.submitFormWithBinaryData(url, formData {
  append("content", bytes, Headers.build {
    append(HttpHeaders.ContentType, ContentType.Application.OctetStream)
    append(HttpHeaders.ContentDisposition, "filename=content")
  })
}).body()

Crash log:

Uncaught Kotlin exception: kotlin.NullPointerException
    at 0   MyApp                               0x10457e7f7        kfun:kotlin.Throwable#<init>(){} + 75 
    at 1   MyApp                               0x104577147        kfun:kotlin.Exception#<init>(){} + 67 
    at 2   MyApp                               0x10457739b        kfun:kotlin.RuntimeException#<init>(){} + 67 
    at 3   MyApp                               0x104577f73        kfun:kotlin.NullPointerException#<init>(){} + 67 
    at 4   MyApp                               0x1045aa93b        ThrowNullPointerException + 107 
    at 5   MyApp                               0x10494b6db        kfun:io.ktor.client.plugins.contentnegotiation.ContentNegotiation.Plugin.$install$lambda-1COROUTINE$136.invokeSuspend#internal + 4559 
    at 6   MyApp                               0x10494c717        kfun:io.ktor.client.plugins.contentnegotiation.ContentNegotiation.Plugin.$install$lambda-1COROUTINE$136.invoke#internal + 275 
    at 7   MyApp                               0x10494c82f        kfun:io.ktor.client.plugins.contentnegotiation.ContentNegotiation.Plugin.$install$lambda-1COROUTINE$136.invoke#internal.223 + 211 
    at 8   MyApp                               0x104809e3b        kfun:io.ktor.util.pipeline.SuspendFunctionGun.loop#internal + 787 
    at 9   MyApp                               0x1048096cf        kfun:io.ktor.util.pipeline.SuspendFunctionGun#proceed(){}1:0 + 347 
    at 10  MyApp                               0x10480988b        kfun:io.ktor.util.pipeline.SuspendFunctionGun#proceedWith(1:0){}1:0 + 175 
    at 11  MyApp                               0x1049138df        kfun:io.ktor.client.plugins.HttpCallValidator.Companion.$install$lambda-1COROUTINE$155.invokeSuspend#internal + 883 
    at 12  MyApp                               0x104914147        kfun:io.ktor.client.plugins.HttpCallValidator.Companion.$install$lambda-1COROUTINE$155.invoke#internal + 275 
    at 13  MyApp                               0x10491425f        kfun:io.ktor.client.plugins.HttpCallValidator.Companion.$install$lambda-1COROUTINE$155.invoke#internal.183 + 211 
    at 14  MyApp                               0x104809e3b        kfun:io.ktor.util.pipeline.SuspendFunctionGun.loop#internal + 787 
    at 15  MyApp                               0x1048096cf        kfun:io.ktor.util.pipeline.SuspendFunctionGun#proceed(){}1:0 + 347 
    at 16  MyApp                               0x10491e9ab        kfun:io.ktor.client.plugins.HttpRequestLifecycle.Plugin.$install$lambda-0COROUTINE$164.invokeSuspend#internal + 1039 
    at 17  MyApp                               0x10491f19f        kfun:io.ktor.client.plugins.HttpRequestLifecycle.Plugin.$install$lambda-0COROUTINE$164.invoke#internal + 275 
    at 18  MyApp                               0x10491f2b7        kfun:io.ktor.client.plugins.HttpRequestLifecycle.Plugin.$install$lambda-0COROUTINE$164.invoke#internal.197 + 211 
    at 19  MyApp                               0x104809e3b        kfun:io.ktor.util.pipeline.SuspendFunctionGun.loop#internal + 787 
    at 20  MyApp                               0x1048096cf        kfun:io.ktor.util.pipeline.SuspendFunctionGun#proceed(){}1:0 + 347 
    at 21  MyApp                               0x104809a53        kfun:io.ktor.util.pipeline.SuspendFunctionGun#execute(1:0){}1:0 + 387 
    at 22  MyApp                               0x104802453        kfun:io.ktor.util.pipeline.Pipeline#execute(1:1;1:0){}1:0 + 379 
    at 23  MyApp                               0x1048ecb03        kfun:io.ktor.client.HttpClient.$executeCOROUTINE$138#invokeSuspend(kotlin.Result<kotlin.Any?>){}kotlin.Any? + 587 
    at 24  MyApp                               0x1048ecdc7        kfun:io.ktor.client.HttpClient#execute(io.ktor.client.request.HttpRequestBuilder){}io.ktor.client.call.HttpClientCall + 271 
    at 25  MyApp                               0x104942e6b        kfun:io.ktor.client.statement.HttpStatement.$executeUnsafeCOROUTINE$189#invokeSuspend(kotlin.Result<kotlin.Any?>){}kotlin.Any? + 743 
    at 26  MyApp                               0x1049431cf        kfun:io.ktor.client.statement.HttpStatement#executeUnsafe(){}io.ktor.client.statement.HttpResponse + 239 
    at 27  MyApp                               0x104941f33        kfun:io.ktor.client.statement.HttpStatement.$executeCOROUTINE$186#invokeSuspend(kotlin.Result<kotlin.Any?>){}kotlin.Any? + 811 
    at 28  MyApp                               0x10494297b        kfun:io.ktor.client.statement.HttpStatement#execute(kotlin.coroutines.SuspendFunction1<io.ktor.client.statement.HttpResponse,0:0>){0§<kotlin.Any?>}0:0 + 271 
    at 29  MyApp                               0x104942a77        kfun:io.ktor.client.statement.HttpStatement#execute(){}io.ktor.client.statement.HttpResponse + 183 
    at 30  MyApp                               0x104ba3f6b        kfun:com.mjegorovas.MyApp.server.MyAppApi.$storeFileContentCOROUTINE$58#invokeSuspend(kotlin.Result<kotlin.Any?>){}kotlin.Any? + 1855 
    at 31  MyApp                               0x104ba473f        kfun:com.mjegorovas.MyApp.server.MyAppApi#storeFileContent(kotlin.ByteArray;kotlin.Int;kotlin.Long;kotlin.Int?){} + 367 
    at 32  MyApp                               0x104ba4897        kfun:com.mjegorovas.MyApp.server.MyAppApi#storeFileContent$default(kotlin.ByteArray;kotlin.Int;kotlin.Long;kotlin.Int?;kotlin.Int){} + 283 
    at 33  MyApp                               0x104c7016f        kfun:com.mjegorovas.MyApp.useCases.UploadItemUseCase.$storeItems$<anonymous>_3COROUTINE$101.invokeSuspend#internal + 803 
    at 34  MyApp                               0x104c706cf        kfun:com.mjegorovas.MyApp.useCases.UploadItemUseCase.$storeItems$<anonymous>_3COROUTINE$101.invoke#internal + 255 
    at 35  MyApp                               0x104c70907        kfun:com.mjegorovas.MyApp.useCases.UploadItemUseCase.$storeItems$<anonymous>_3COROUTINE$101.$<bridge-NNNNB>invoke(kotlin.ByteArray;kotlin.Long){}kotlin.Any?#internal + 227 
    at 36  MyApp                               0x104c78fa3        kfun:com.mjegorovas.MyApp.util.$readByChunksCOROUTINE$107#invokeSuspend(kotlin.Result<kotlin.Any?>){}kotlin.Any? + 1039 
    at 37  MyApp                               0x104c7935f        kfun:com.mjegorovas.MyApp.util#readByChunks__at__okio.BufferedSource(kotlin.Long;kotlin.coroutines.SuspendFunction2<kotlin.ByteArray,kotlin.Long,kotlin.Unit>){} + 295 
    at 38  MyApp                               0x104c7947f        kfun:com.mjegorovas.MyApp.util#readByChunks$default__at__okio.BufferedSource(kotlin.Long;kotlin.coroutines.SuspendFunction2<kotlin.ByteArray,kotlin.Long,kotlin.Unit>;kotlin.Int){} + 231 
    at 39  MyApp                               0x104c6eee7        kfun:com.mjegorovas.MyApp.useCases.UploadItemUseCase.$storeItemsCOROUTINE$100.invokeSuspend#internal + 2483 
    at 40  MyApp                               0x104c6f873        kfun:com.mjegorovas.MyApp.useCases.UploadItemUseCase.storeItems#internal + 319 
    at 41  MyApp                               0x104c6d8a7        kfun:com.mjegorovas.MyApp.useCases.UploadItemUseCase.$uploadCOROUTINE$99#invokeSuspend(kotlin.Result<kotlin.Any?>){}kotlin.Any? + 3335 
    at 42  MyApp                               0x104582943        kfun:kotlin.coroutines.native.internal.BaseContinuationImpl#resumeWith(kotlin.Result<kotlin.Any?>){} + 563 
    at 43  MyApp                               0x1047019fb        kfun:kotlinx.coroutines#resume__at__kotlinx.coroutines.DispatchedTask<0:0>(kotlin.coroutines.Continuation<0:0>;kotlin.Boolean){0§<kotlin.Any?>} + 1059 
    at 44  MyApp                               0x104701213        kfun:kotlinx.coroutines#dispatch__at__kotlinx.coroutines.DispatchedTask<0:0>(kotlin.Int){0§<kotlin.Any?>} + 839 
    at 45  MyApp                               0x1046afa07        kfun:kotlinx.coroutines.CancellableContinuationImpl.dispatchResume#internal + 115 
    at 46  MyApp                               0x1046b00e7        kfun:kotlinx.coroutines.CancellableContinuationImpl.resumeImpl#internal + 783 
    at 47  MyApp                               0x1046b0337        kfun:kotlinx.coroutines.CancellableContinuationImpl#resumeImpl$default(kotlin.Any?;kotlin.Int;kotlin.Function1<kotlin.Throwable,kotlin.Unit>?;kotlin.Int){} + 243 
    at 48  MyApp                               0x1046aebcb        kfun:kotlinx.coroutines.CancellableContinuationImpl#resumeWith(kotlin.Result<1:0>){} + 207 
    at 49  MyApp                               0x1046d4767        kfun:kotlinx.coroutines.ResumeOnCompletion.invoke#internal + 383 
    at 50  MyApp                               0x1046c5c33        kfun:kotlinx.coroutines.JobSupport.notifyCompletion#internal + 703 
    at 51  MyApp                               0x1046c4e9b        kfun:kotlinx.coroutines.JobSupport.completeStateFinalization#internal + 1167 
    at 52  MyApp                               0x1046c34bb        kfun:kotlinx.coroutines.JobSupport.finalizeFinishingState#internal + 1131 
    at 53  MyApp                               0x1046cd387        kfun:kotlinx.coroutines.JobSupport.continueCompleting#internal + 371 
    at 54  MyApp                               0x1046d030b        kfun:kotlinx.coroutines.JobSupport.ChildCompletion.invoke#internal + 267 
    at 55  MyApp                               0x1046c5c33        kfun:kotlinx.coroutines.JobSupport.notifyCompletion#internal + 703 
    at 56  MyApp                               0x1046c4e9b        kfun:kotlinx.coroutines.JobSupport.completeStateFinalization#internal + 1167 
    at 57  MyApp                               0x1046c34bb        kfun:kotlinx.coroutines.JobSupport.finalizeFinishingState#internal + 1131 
    at 58  MyApp                               0x1046cc68b        kfun:kotlinx.coroutines.JobSupport.tryMakeCompletingSlowPath#internal + 1371 
    at 59  MyApp                               0x1046cc063        kfun:kotlinx.coroutines.JobSupport.tryMakeCompleting#internal + 639 
    at 60  MyApp                               0x1046cbbf7        kfun:kotlinx.coroutines.JobSupport#makeCompletingOnce(kotlin.Any?){}kotlin.Any? + 355 
    at 61  MyApp                               0x1046a4797        kfun:kotlinx.coroutines.AbstractCoroutine#resumeWith(kotlin.Result<1:0>){} + 219 
    at 62  MyApp                               0x104582c23        kfun:kotlin.coroutines.native.internal.BaseContinuationImpl#resumeWith(kotlin.Result<kotlin.Any?>){} + 1299 
    at 63  MyApp                               0x10470050b        kfun:kotlinx.coroutines.DispatchedTask#run(){} + 2743 
    at 64  MyApp                               0x1046b982f        kfun:kotlinx.coroutines.EventLoop#processUnconfinedEvent(){}kotlin.Boolean + 351 
    at 65  MyApp                               0x104701463        kfun:kotlinx.coroutines.resumeUnconfined#internal + 439 
    at 66  MyApp                               0x1047011af        kfun:kotlinx.coroutines#dispatch__at__kotlinx.coroutines.DispatchedTask<0:0>(kotlin.Int){0§<kotlin.Any?>} + 739 
    at 67  MyApp                               0x1046afa07        kfun:kotlinx.coroutines.CancellableContinuationImpl.dispatchResume#internal + 115 
    at 68  MyApp                               0x1046b0f6f        kfun:kotlinx.coroutines.CancellableContinuationImpl#completeResume(kotlin.Any){} + 115 
    at 69  MyApp                               0x1046de31f        kfun:kotlinx.coroutines.channels.AbstractChannel.ReceiveHasNext.resumeReceiveClosed#internal + 499 
    at 70  MyApp                               0x1046e45bb        kfun:kotlinx.coroutines.channels.AbstractSendChannel.helpClose#internal + 979 
    at 71  MyApp                               0x1046e37a3        kfun:kotlinx.coroutines.channels.AbstractSendChannel#close(kotlin.Throwable?){}kotlin.Boolean + 591 
    at 72  MyApp                               0x1046f3b4f        kfun:kotlinx.coroutines.channels.SendChannel#close$default(kotlin.Throwable?;kotlin.Int){}kotlin.Boolean + 263 
    at 73  MyApp                               0x104966f6b        kfun:io.ktor.client.engine.darwin.DarwinResponseReader#objc:URLSession:task:didCompleteWithError: + 451 
    at 74  MyApp                               0x104969963        _696f2e6b746f723a6b746f722d636c69656e742d64617277696e_knbridge1109 + 299 
    at 75  CFNetwork                           0x1840bc4ff        CFURLRequestCopyHTTPRequestMethod + 2203 
    at 76  libdispatch.dylib                   0x183629193        <redacted> + 23 
    at 77  libdispatch.dylib                   0x18362a197        <redacted> + 15 
    at 78  libdispatch.dylib                   0x1835d65cf        <redacted> + 939 
    at 79  CoreFoundation                      0x1839197e7        <redacted> + 11 
    at 80  CoreFoundation                      0x1838d70e7        <redacted> + 2527 
    at 81  CoreFoundation                      0x1838e9d7b        CFRunLoopRunSpecific + 571 
    at 82  GraphicsServices                    0x19db5e99f        GSEventRunModal + 159 
    at 83  UIKitCore                           0x18611c05b        <redacted> + 1079 
    at 84  UIKitCore                           0x185eb1cdf        UIApplicationMain + 2027 
    at 85  SwiftUI                             0x18af821cb        <redacted> + 159 
    at 86  SwiftUI                             0x18aecbdd7        <redacted> + 179 
    at 87  SwiftUI                             0x18aeb15ff        $s7SwiftUI3AppPAAE4mainyyFZ + 95 
    at 88  MyApp                               0x104502b5b        $s5MyApp6iOSAppV5$mainyyFZ + 39 
    at 89  MyApp                               0x104502c07        main + 11 
    at 90  dyld                                0x1064a018f        0x0 + 4400480655 
Signal: SIGABRT (signal SIGABRT)

When trying to send a String containing json with ktor while also having serializers installed I noticed that it was breaking my json string.
I tried bypassing the serializers by using TextContent because this doesn't set the bodyType on the HttpRequestBuilder.
This resulted in the following stacktrace:

java.lang.NullPointerException: null
	at io.ktor.client.plugins.contentnegotiation.ContentNegotiation$Plugin$install$1.invokeSuspend(ContentNegotiation.kt:112)
	at io.ktor.client.plugins.contentnegotiation.ContentNegotiation$Plugin$install$1.invoke(ContentNegotiation.kt)
	at io.ktor.client.plugins.contentnegotiation.ContentNegotiation$Plugin$install$1.invoke(ContentNegotiation.kt)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(SuspendFunctionGun.kt:123)
	at io.ktor.util.pipeline.SuspendFunctionGun.proceed(SuspendFunctionGun.kt:81)
	at io.ktor.util.pipeline.SuspendFunctionGun.proceedWith(SuspendFunctionGun.kt:91)
	at io.ktor.client.plugins.HttpCallValidator$Companion$install$1.invokeSuspend(HttpCallValidator.kt:125)
	at io.ktor.client.plugins.HttpCallValidator$Companion$install$1.invoke(HttpCallValidator.kt)
	at io.ktor.client.plugins.HttpCallValidator$Companion$install$1.invoke(HttpCallValidator.kt)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(SuspendFunctionGun.kt:123)
	at io.ktor.util.pipeline.SuspendFunctionGun.proceed(SuspendFunctionGun.kt:81)
	at io.ktor.client.plugins.HttpRequestLifecycle$Plugin$install$1.invokeSuspend(HttpRequestLifecycle.kt:35)
	at io.ktor.client.plugins.HttpRequestLifecycle$Plugin$install$1.invoke(HttpRequestLifecycle.kt)
	at io.ktor.client.plugins.HttpRequestLifecycle$Plugin$install$1.invoke(HttpRequestLifecycle.kt)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(SuspendFunctionGun.kt:123)
	at io.ktor.util.pipeline.SuspendFunctionGun.proceed(SuspendFunctionGun.kt:81)
	at io.ktor.util.pipeline.SuspendFunctionGun.execute$ktor_utils(SuspendFunctionGun.kt:101)
	at io.ktor.util.pipeline.Pipeline.execute(Pipeline.kt:77)
	at io.ktor.client.HttpClient.execute$ktor_client_core(HttpClient.kt:184)
	at io.ktor.client.statement.HttpStatement.executeUnsafe(HttpStatement.kt:107)
	at io.ktor.client.statement.HttpStatement.execute(HttpStatement.kt:46)
	at io.ktor.client.statement.HttpStatement.execute(HttpStatement.kt:61)
	at me.melijn.bot.commands.DevExtension$setup$2$1.invokeSuspend(DevExtension.kt:152)
	at me.melijn.bot.commands.DevExtension$setup$2$1.invoke(DevExtension.kt)
	at me.melijn.bot.commands.DevExtension$setup$2$1.invoke(DevExtension.kt)
	at com.kotlindiscord.kord.extensions.commands.chat.ChatCommand$call$2.invokeSuspend(ChatCommand.kt:434)
	at com.kotlindiscord.kord.extensions.commands.chat.ChatCommand$call$2.invoke(ChatCommand.kt)
	at com.kotlindiscord.kord.extensions.commands.chat.ChatCommand$call$2.invoke(ChatCommand.kt)
	at com.kotlindiscord.kord.extensions.types.Lockable$DefaultImpls.withLock(Lockable.kt:24)
	at com.kotlindiscord.kord.extensions.commands.Command.withLock(Command.kt:39)
	at com.kotlindiscord.kord.extensions.commands.chat.ChatCommand.call$suspendImpl(ChatCommand.kt:351)
	at com.kotlindiscord.kord.extensions.commands.chat.ChatCommand.call(ChatCommand.kt)
	at com.kotlindiscord.kord.extensions.commands.chat.ChatCommand.call$default(ChatCommand.kt:345)
	at com.kotlindiscord.kord.extensions.commands.chat.ChatCommandRegistry.handleEvent$suspendImpl(ChatCommandRegistry.kt:237)
	at com.kotlindiscord.kord.extensions.commands.chat.ChatCommandRegistry$handleEvent$1.invokeSuspend(ChatCommandRegistry.kt)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:749)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)

Here is a code snippet to reproduce this:

I've had it with this issue editor, it wants to place everything on one line so here it is ig..
https://gist.github.com/ToxicMushroom/975601e26be80994a57487e043a3e6dc

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1968

Ktor Version and Engine Used (client or server and name)
Ktor HTTP client 1.3.2 on Kotlin/JS; dependencies:

                implementation("io.ktor:ktor-client-json:$ktorVersion")
                implementation("io.ktor:ktor-client-js:$ktorVersion")
                implementation("io.ktor:ktor-client-json-js:$ktorVersion")
                implementation("io.ktor:ktor-client-serialization-js:$ktorVersion")

Describe the bug
While debugging the situation with redirects location, I found that if you call something like println(resp) where resp is a HttpResponse result of a request that returns HTTP/1.1 302 Found, string will be HttpResponse[http://localhost:3000/api/v1/auth/logout, 200 OK], where I excected something like HttpResponse[http://localhost:3000/api/v1/auth/logout, 302 Found].

In network tab of browser developer tools response shown as 302 Found with correct Location header, but ktor client shows different results...

To Reproduce
Steps to reproduce the behavior:

1. Take this repo for example, change url in App.kt to something suitable in your environment (httpbin, for example)
2. Open in browser localhost:3000
3. See string representation of response with 200 OK

Expected behavior
302 Found with Location header

Screenshots

If what, I can try to debug this and fix by myself, but later...

P.S. Thank you for ktor framework and client. They're awesome.

This broke between 2.0.1 and 2.0.2.

val websocketClient = HttpClient(CIO) {
    install(HttpTimeout) {
        connectTimeoutMillis = 2000L
    }
    install(WebSockets) {
        pingInterval = 30000L
    }
}

val session = websocketClient.webSocketSession("ws://some-url")

session.launch {
    while (isActive) {
        val frame = session.incoming.receive()
        // to things with frame
    }
}

The websocket server shows the client as connected and eventually reports an abnormal close. On the client side the coroutine is cancelled with a request timeout exception from ktor:

java.util.concurrent.CancellationException: Request is timed out
	at kotlinx.coroutines.ExceptionsKt.CancellationException(Exceptions.kt:22)
	at kotlinx.coroutines.JobKt__JobKt.cancel(Job.kt:596)
	at kotlinx.coroutines.JobKt.cancel(Unknown Source)
	at io.ktor.client.engine.cio.EndpointKt$setupTimeout$timeoutJob$1.invokeSuspend(Endpoint.kt:250)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:749)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)
Caused by: io.ktor.client.plugins.HttpRequestTimeoutException: Request timeout has expired [url=ws://mrf-rest.lab2018.qa.lbaum.eu:8081/v2/events/3853126682810736, request_timeout=unknown ms]
	... 7 common frames omitted

The Websocket HttpClient doesn't seem to send the query parameters since Ktor 2.0+. It looks like they are stripped.

Ktor Client code:

val client = HttpClient(CIO) {
    install(WebSockets)
}

client.wss(
    host = "api.acme.com",
    path = "/connect?param1=value1&param2=value2"
) {
  ...
}

Ktor Server code:

webSocket("/connect") {
  logger.debug("call.request.path(): ${call.request.path()}")
  logger.debug("call.request.uri: ${call.request.uri}")
  logger.debug("call.request.rawQueryParameters: ${call.request.rawQueryParameters}")
  logger.debug("call.request.queryParameters: ${call.request.queryParameters}")
  logger.debug("call.parameters: ${call.parameters}")
  logger.debug("call.request.queryParameters[\"param1\"]: ${call.request.queryParameters["param1"]}")
  logger.debug("call.request.queryParameters[\"param2\"]: ${call.request.queryParameters["param2"]}")
}

Using the client code above with Ktor 1.6.7 results on the server:

call.request.path(): /connect
call.request.uri: /connect?param1=value1&param2=value2
call.request.rawQueryParameters: Parameters [param1=[value1], param2=[value2]]
call.request.queryParameters: io.ktor.server.netty.NettyApplicationRequest$queryParameters$1@3456f3cc
call.parameters: Parameters [param1=[value1], param2=[value2]]
call.request.queryParameters["param1"]: value1
call.request.queryParameters["param2"]: value2

Using the client code above with Ktor 2.0.1 results on the server:

call.request.path(): /connect
call.request.uri: /connect
call.request.rawQueryParameters: Parameters []
call.request.queryParameters: io.ktor.server.netty.NettyApplicationRequest$queryParameters$1@60a44ee9
call.parameters: Parameters []
call.request.queryParameters["param1"]: null
call.request.queryParameters["param2"]: null

Any help would be much appreciated! :D

Kind regards,

Thomas

When making a request with URL http://localhost?foo=bar, CIO engine sends the following data to the server:

GET ?foo=bar/ HTTP/1.1
...

It seems to be caused by this normalization. The normalization should take into account the rest of the URL (parameters, fragment etc.).

The raw UDP sockets in Ktor do not work as expected for me. Requests are OK, but responses come in very slowly, and only gets worse with more responses. In Wireshark you can see responses come in immediately.

After some debugging I found the cause. Apparently every UDP response causes a reverse DNS lookup in Ktor to get the hostname. Call is here (hostName):

• https://github.com/ktorio/ktor/blob/3a0accc88eb166a0fc11324f3228d55c2abb845f/ktor-network/jvm/src/io/ktor/network/sockets/JavaSocketAddressUtils.kt#L22

This function is used here every time a UDP packet is received:

• https://github.com/ktorio/ktor/blob/3a0accc88eb166a0fc11324f3228d55c2abb845f/ktor-network/jvm/src/io/ktor/network/sockets/DatagramSocketImpl.kt#L81
• https://github.com/ktorio/ktor/blob/3a0accc88eb166a0fc11324f3228d55c2abb845f/ktor-network/jvm/src/io/ktor/network/sockets/DatagramSocketImpl.kt#L99

It does not seem to happen for every device on my local network. But for some devices it causes around a 4 second delay on my Windows PC, measured like the following:

val address = java.net.InetSocketAddress("192.168.86.54", 56700)
measureTimeMillis {
    address.hostName
}.also { println(it.toString()) } // prints around 4000 milliseconds

Now comes the worst part. This delay is there every time. So say for example you receive 100 UDP packets at the same time. That means that with Ktor the last packet is received after 100*4 = 400 seconds

This makes the Ktor UDP sockets unusable on Windows, so this needs to be fixed. For some reason this does not happen for every local IP address, and I can also not reproduce it on macOS. It is a Windows only issue for me.

See documentation for InetSocketAddress.html#getHostName():

Gets the hostname. Note: This method may trigger a name service reverse lookup if the address was created with a literal IP address.

https://docs.oracle.com/javase/7/docs/api/java/net/InetSocketAddress.html#getHostName()

As an alternative, instead of using getHostName (hostName in Kotlin), another function called getHostString could be used instead. This function specifically mentions in the documentation:

Returns the hostname, or the String form of the address if it doesn't have a hostname (it was created using a literal). This has the benefit of not attempting a reverse lookup.

I think this is a good replacement, although it could be seen as a minor breaking chance in Ktor, but it is much better than a 4 second delay. And there needs to be a fallback for < 1.7 as this function is only available since 1.7.

Some related information:

• https://stackoverflow.com/questions/10420317/java-inetaddress-gethostname-taking-a-very-long-time-to-execute

• https://bugs.openjdk.java.net/browse/JDK-6450279
• https://bugs.openjdk.java.net/browse/JDK-8154834

Thanks for looking into this.

val url = URLBuilder(
    Url("https://localhost")
).apply {
    fragment = "action_uri=%3A"
}.build()

url.toString()                 // => https://localhost#action_uri=%253A
Url(url.toString()).toString() // => https://localhost#action_uri=%25253A

As you can see, escape sequences in the fragment are parsed without unescaping, but when converting to a string they get escaped.

{width=70%}

{width=70%}

https://jbs.zendesk.com/agent/tickets/4105476

This page is written for Jvm only sockets, but can be tuned for multiplatform:

https://ktor.io/docs/servers-raw-sockets.html#server_close

After creating a project with WebSockets feature, you have in Sockets.kt:

fun Application.configureSockets() {
    install(WebSockets) {
        ...
    }

    routing {
        webSocket("/") { // websocketSession
            ...
        }
    }
}

And Routing.kt :

fun Application.configureRouting() {
    routing {
        get("/") {
            ...
        }
    }
}

Create a project with WebSockets feature and in Sockets.kt will be:

fun Application.configureSockets() {
    install(WebSockets) {
        ...
    }

    routing {
        webSocket("/") { // websocketSession
            for (frame in incoming) {
                when (frame) { // COMPILE ERROR: NON-EXHAUSTIVE WHEN
                    is Frame.Text -> {
                        ...
                    }
                }
            }
        }
    }
}

Currently, the plugin adds the following code to a test:

client.webSocket("/chat") {
    TODO("Please write your test here")
}

But it would be convenient to initialize a client with the WebSockets plugin installed:

val client = createClient {
    install(WebSockets)
}
client.webSocket("/chat") {
    TODO("Please write your test here")
}

Reproduced on: https://github.com/ktorio/ktor-samples

To reproduce the issue, generate a new project with the Freemarker plugin and leave the Add sample code option enabled. The following endpoint will be generated:

        get("/html-freemarker") {
            call.respond(FreeMarkerContent("index.ftl", mapOf("data" to IndexData(listOf(1, 2, 3))), ""))
        }

But the index.ftl is missing in a project, so accessing this endpoint returns the 500 error:

Exception class freemarker.template.TemplateNotFoundException: Template not found for name "index.ftl".

Help example: https://github.com/ktorio/ktor-documentation/tree/main/codeSnippets/snippets/freemarker

Currently migration action is only shown in Actions menu if any ktor migration is available. In order to decide upon that it does a network request to the generator backend.

The receiveText() function previously read the body as-is without any additional steps. Starting with version 2.0.2 Ktor tries to parse it as JSON when the request sets a Content-Type header. This is not expected behavior.

In our case we use the receiveText() function to receive JSON bodies in our webhook routes and send the body to third party libraries that do the actual deserialization.

The following code can be used to reproduce the issue (using ktor 2.0.2 and kotlinx.serialization 1.3.3)

embeddedServer(Netty, port = 8080) {
		install(ContentNegotiation) {
			serialization(ContentType.Application.Json, Json.Default)
		}

		routing {
			post("test") {
				val body = call.receiveText()
				call.respond("OK")
			}
		}
	}.start(true)

Sending a JSON request responds with "OK" in 2.0.0 and throws an exception in 2.0.2 using the following request.

POST http://localhost:8080/test
Content-Type: application/json

{
    "test": true
}

In a CoroutineScope of a Ktor-2.0.0-application (netty-engine), the "ClassLoaders@AppClassLoader" is not aware of Objects loaded by the (default?) Application ClassLoader. Therefore, for exampe, received objects from an (Apache-ActiveMQ-Artemis-)message-queue cannot be cast to its corresponding DTOs - see attached screenshots with Ktor-1.6.8/Kotlin-1.6.10 vs. Ktor-2.0.0/Kotlin-1.6.20.

From time to time, we receive server requests with an incomplete body.

It seems that the cause of that is lack of `Content-Length` validation during request's body read.

In the `ServletReader` validated excess length of the body, but no assertion is made that received bodySize is equal to the `Content-Length`.

Reference: https://github.com/ktorio/ktor/blob/main/ktor-server/ktor-server-servlet/jvm/src/io/ktor/server/servlet/ServletReader.kt#L81

Hello everyone

We use ktor 2.0.0 with Netty engine

We process large tsv, tsv transmitted over http

We represent http request body as Flow<ByteBuffer>

How we read from channel

fun ApplicationCall.receiveFlow(): Flow<ByteBuffer> = flow<ByteBuffer> {

    val channel = receiveChannel()
    try {
        while (true) {
            val buffer = ByteBuffer.allocate(4096)
            if (channel.readAvailable(buffer) == -1) {
                break
            }
            buffer.flip()
            emit(buffer)
        }
    } catch (e: Exception) {
        log.error("URL: '${request.uri}' error reading body", e)
        throw e
    }
}

If server slowly process http request - we see increase direct byte buffers (non-heap), this buffers create netty for buffering request (buffers grows to 2 gb)

I expected back pressure in ktor, but buffers are growing.

I communicated with netty users - they recommend disable autoread at channel and use read() manually

Does ktor support back pressure? If so, how enable it?

it.converter.serialize(
    contentType = contentType ?: it.contentType,
    charset = acceptCharset ?: Charsets.UTF_8,
    typeInfo = call.response.responseType!!, // NPE triggered by responseType
    value = subject
)

Stacktrace:

java.lang.NullPointerException
	at io.ktor.server.plugins.contentnegotiation.ResponseConverterKt$convertResponseBody$1$1.invokeSuspend(ResponseConverter.kt:52)
	at io.ktor.server.plugins.contentnegotiation.ResponseConverterKt$convertResponseBody$1$1.invoke(ResponseConverter.kt)
	at io.ktor.server.plugins.contentnegotiation.ResponseConverterKt$convertResponseBody$1$1.invoke(ResponseConverter.kt)
	at io.ktor.server.application.OnCallRespondContext.transformBody(KtorCallContexts.kt:86)
	at io.ktor.server.plugins.contentnegotiation.ResponseConverterKt$convertResponseBody$1.invokeSuspend(ResponseConverter.kt:23)
	at io.ktor.server.plugins.contentnegotiation.ResponseConverterKt$convertResponseBody$1.invoke(ResponseConverter.kt)
	at io.ktor.server.plugins.contentnegotiation.ResponseConverterKt$convertResponseBody$1.invoke(ResponseConverter.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhase$1.invokeSuspend(PluginBuilder.kt:217)
	at io.ktor.server.application.PluginBuilder$onDefaultPhase$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhase$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1$1.invokeSuspend(PluginBuilder.kt:200)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1$1.invoke(PluginBuilder.kt)
	at io.ktor.util.debug.ContextUtilsKt.addToContextInDebugMode(ContextUtils.kt:30)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1.invokeSuspend(PluginBuilder.kt:196)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.PluginBuilder$onDefaultPhaseWithMessage$1$1.invoke(PluginBuilder.kt)
	at io.ktor.server.application.ApplicationPluginKt$addAllInterceptors$1$1$1.invokeSuspend(ApplicationPlugin.kt:167)
	at io.ktor.server.application.ApplicationPluginKt$addAllInterceptors$1$1$1.invoke(ApplicationPlugin.kt)
	at io.ktor.server.application.ApplicationPluginKt$addAllInterceptors$1$1$1.invoke(ApplicationPlugin.kt)
	at io.ktor.util.pipeline.DebugPipelineContext.proceedLoop(DebugPipelineContext.kt:80)
	at io.ktor.util.pipeline.DebugPipelineContext.proceed(DebugPipelineContext.kt:57)
	at io.ktor.util.pipeline.DebugPipelineContext.execute$ktor_utils(DebugPipelineContext.kt:63)

    @Test
    fun test() {
        testApplication {
            application {
                routing {
                    install(ContentNegotiation) {
                        register(ContentType.Application.Json, JacksonConverter())
                    }
                    get("/") {
                        call.respond("test".toByteArray())
                    }
                }
            }
            client.get("/")
        }
    }

Step to reproduce:

1. Run this code fragment:

package ru.vs.control.server

import io.ktor.server.application.*
import io.ktor.server.engine.*
import io.ktor.server.netty.*

fun main() {
    val env = applicationEngineEnvironment {
        connector {
            host = "0.0.0.0"
            port = 8080
        }
        module {
            intercept(ApplicationCallPipeline.Call) {
                throw RuntimeException("my-unexpected-exception")
            }
        }
    }
    embeddedServer(Netty, env).start(true)
}

2. Send any request to server

Expected result:

Stack trace with my exception inside

Actual result:

Internal ktor engine stack tace:

стектрейс и инфо по окружению во вложении

Sample code that crashes:

package com.example

import io.ktor.resources.Resource
import io.ktor.server.application.Application
import io.ktor.server.application.call
import io.ktor.server.application.install
import io.ktor.server.engine.embeddedServer
import io.ktor.server.netty.Netty
import io.ktor.server.resources.Resources
import io.ktor.server.resources.get
import io.ktor.server.response.respondText
import io.ktor.server.routing.get
import io.ktor.server.routing.routing
import kotlinx.serialization.Serializable

fun main() {
    embeddedServer(Netty, port = 8080, host = "0.0.0.0") {
        configureRouting()
    }.start(wait = true)
}

fun Application.configureRouting() {
    install(Resources)
    routing {
        get("/") {
            call.respondText("Hello World!")
        }
        get<UShortTest> {
            call.respondText("Res: string=${it.testString}, ushort=${it.testUShort}")
        }
    }
}

@Serializable
@Resource("/test-ushort")
class UShortTest(val testString: String, val testUShort: UShort)

Crash details:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Array index out of range: -3 at kotlinx.serialization.internal.PluginGeneratedSerialDescriptor.getElementDescriptor(PluginGeneratedSerialDescriptor.kt:135) at io.ktor.resources.serialization.ResourcesFormat.collectAllParameters(ResourcesFormat.kt:76) at io.ktor.resources.serialization.ResourcesFormat.collectAllParameters(ResourcesFormat.kt:78) at io.ktor.resources.serialization.ResourcesFormat.encodeToQueryParameters(ResourcesFormat.kt:64) at io.ktor.server.resources.RoutingKt.resource(Routing.kt:186) ...

While the issue affects UShort, ULong etc, value classes like the one below seem to work fine:

@JvmInline
@Serializable
value class TestCustom(val iamstring: String)

The use case is a client makes a request in a route's handler with a timeout.

fun Application.configureRouting(httpClient: HttpClient) {
    routing {
        get("/test") {
            httpClient.get("http://fake.site.io/toto") {
                timeout {
                    requestTimeoutMillis = 100
                }
            }
            call.respondText("Hello World!")
        }
    }
}


class ApplicationTest {
    @Test
    fun testRoot() = testApplication {

        val myClient = createClient {
            install(HttpTimeout)
        }

        application {
            configureRouting(myClient)
        }

        externalServices {
            hosts ("http://fake.site.io") {
                routing {
                    get("/toto") {
                        call.respond(HttpStatusCode.OK)
                    }
                }
            }
        }

        myClient.get("/test").apply {
            assertEquals(HttpStatusCode.OK, status)
        }
    }
}

https://kotlinlang.slack.com/archives/C0A974TJ9/p1654617495485869

When something is configured incorrectly, Ktor client launches the following exception

No request transformation found:
java.lang.IllegalStateException: No request transformation found: [Lcom.hadihariri.keolink.LoginData;@23d1e5d0

The only insight it provides is a data class. The help for this exception leads to even less information

https://api.ktor.io/ktor-client/ktor-client-core/io.ktor.client.call/-no-transformation-found-exception/index.html

As a user, I have no idea what I am meant to do to solve the problem. It would be good to provide some guidance.

Since ShadowJar and GraalVM plugins rely on application plugin, it's better to apply this plugin automatically when ktor plugin is applied.

We can fix it by setting mainClassName property from application.mainClass before running shadowJar

publishImage and publishImageToLocalRegistry are affected

I am using the iOS HttpClientEngine of Ktor and the connection seems to be closed after each request, even if I do not intentionally close any connection. Keep Alive header is received correctly in the server and in the Android side (using OkHtttp) the socket connection is maintained to be reused in next requests, but in the iOS side the socket connection is closed after each request.

The output from the request of the iOS App in the server (run in a local machine) is the following:

dbug: Microsoft.AspNetCore.Mvc.ModelBinding.ParameterBinder[26]

Attempting to validate the bound parameter 'loginRequest' of type 'ApiHosteleriaMobile.Entities.requests.LoginRequest' ...

dbug: Microsoft.AspNetCore.Mvc.ModelBinding.ParameterBinder[27]

Done attempting to validate the bound parameter 'loginRequest' of type 'ApiHosteleriaMobile.Entities.requests.LoginRequest'.

info: ApiHosteleriaMobile.ParameterAdapterActionFilter[0]

[Request][][/api/v1/login/login]

info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[1]

Executing action method ApiHosteleriaMobile.Controllers.LoginController.ValidateLogin (ApiHosteleriaMobile) - Validation state: Invalid

fail: HosteleriaApp.api.Repositories.LoginRepository[0]

[validateUser][ILoginRepository] ErrorContent: No se han encontrado ni operadores ni hosteleros Username:sendoa.vaz@gmail.com

fail: BaseLogger[0]

[LoginUseCase][ErrorCode=6000] Username:sendoa.vaz@gmail.com

info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[2]

Executed action method ApiHosteleriaMobile.Controllers.LoginController.ValidateLogin (ApiHosteleriaMobile), returned result Microsoft.AspNetCore.Mvc.ObjectResult in 9317.4553ms.

dbug: Microsoft.AspNetCore.Mvc.Infrastructure.DefaultOutputFormatterSelector[11]

List of registered output formatters, in the following order: Microsoft.AspNetCore.Mvc.Formatters.HttpNoContentOutputFormatter, Microsoft.AspNetCore.Mvc.Formatters.StringOutputFormatter, Microsoft.AspNetCore.Mvc.Formatters.StreamOutputFormatter, Microsoft.AspNetCore.Mvc.Formatters.NewtonsoftJsonOutputFormatter

dbug: Microsoft.AspNetCore.Mvc.Infrastructure.DefaultOutputFormatterSelector[6]

Attempting to select an output formatter based on Accept header 'application/json'.

dbug: Microsoft.AspNetCore.Mvc.Infrastructure.DefaultOutputFormatterSelector[2]

Selected output formatter 'Microsoft.AspNetCore.Mvc.Formatters.NewtonsoftJsonOutputFormatter' and content type 'application/json' to write the response.

info: Microsoft.AspNetCore.Mvc.Infrastructure.ObjectResultExecutor[1]

Executing ObjectResult, writing value of type 'ApiHosteleriaMobile.Entities.Responses.LoginResponse'.

info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[2]

Executed action ApiHosteleriaMobile.Controllers.LoginController.ValidateLogin (ApiHosteleriaMobile) in 9455.4859ms

info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]

Executed endpoint 'ApiHosteleriaMobile.Controllers.LoginController.ValidateLogin (ApiHosteleriaMobile)'

dbug: Microsoft.AspNetCore.Server.Kestrel[9]

Connection id "0HMGRQRK5P7RA" completed keep alive response.

info: Microsoft.AspNetCore.Hosting.Diagnostics[2]

Request finished in 9577.0655ms 200 application/json; charset=utf-8

dbug: Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets[6]

Connection id "0HMGRQRK5P7RA" received FIN.

dbug: Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets[7]

Connection id "0HMGRQRK5P7RA" sending FIN because: "The client closed the connection."

dbug: Microsoft.AspNetCore.Server.Kestrel[10]

Connection id "0HMGRQRK5P7RA" disconnecting.

dbug: Microsoft.AspNetCore.Server.Kestrel[2]

Connection id "0HMGRQRK5P7RA" stopped.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1861

Ktor Version and Engine Used (client or server and name)
io.ktor:ktor-client:1.3.2
io.ktor:ktor-client-cio:1.3.2
io.ktor:ktor-client-json:1.3.2
io.ktor:ktor-client-gson:1.3.2

Describe the bug
When requesting a simple string (e.g. foo) from a ASP.NET Core Web-API the server returns the simple string encoded as Json string ("foo") with mime type application/json.
The ktor client does not use the configured serializer (e.g. GsonSerializer) to deserialize the response body, but rather directly return the string "foo" with the quotes to the requesting code. This is a bigger problem when the simple string contains character which must be encoded in json strings like " or LF. Then the string in the HTTP response look like "\"\n" and ktor returns the string "\"\n" (this is a string with length 6) but it should be a string with two characters, the first character a \ and the second a LF.

To Reproduce
Steps to reproduce the behavior:

1. Write the following

client = HttpClient {
  install(JsonFeature) {
    serializer = GsonSerializer()
  }
}
val simpleString = client.get<String>(someUrl)
println(simpleString)

2. The server at someUrl must respond with a HTTP response like following:

HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8

"foo\"\n"

3. See "foo\"\n" printed as output

Expected behavior
only foo" should be printed (two line breaks)

Hi There.

I'am try to using ktor-client-logging-jvm.
This logging module display multiple line like this and so many line.

HttpClient: REQUEST: http://localhost:8081/testPost
HttpClient: METHOD: HttpMethod(value=POST)
HttpClient: COMMON HEADERS
HttpClient: -> Accept: application/json
HttpClient: -> Accept-Charset: UTF-8
HttpClient: -> User-Agent: Apache-HttpAsyncClient/4.5.3(npay-point)
HttpClient: CONTENT HEADERS
HttpClient: -> Content-Length: 12
HttpClient: -> Content-Type: text/plain; charset=UTF-8
HttpClient: BODY Content-Type: text/plain; charset=UTF-8
HttpClient: BODY START
HttpClient: asdfasdfasdf
HttpClient: BODY END
HttpClient: RESPONSE: 502 
HttpClient: METHOD: HttpMethod(value=POST)
HttpClient: FROM: http://localhost:8081/testPost
HttpClient: COMMON HEADERS
HttpClient: -> Connection: keep-alive, keep-alive
HttpClient: -> Content-Length: 11
HttpClient: -> Content-Type: text/plain;charset=UTF-8
HttpClient: -> Date: Fri, 04 Dec 2020 08:14:04 GMT
HttpClient: -> Keep-Alive: timeout=60
HttpClient: BODY Content-Type: text/plain; charset=UTF-8
HttpClient: BODY START
HttpClient: Post Result
HttpClient: BODY END

Can I logging this to single line like this?

Request : Url[http....], Headers, body, params
Response : Header, body

and if logging with elapsed time. it is very helpful.
Thank u.

Hello!

I'm using Ktor in a KMM app, and I am not having any kind of problem in Android, but in iOS it behaves weird. I don't have the HttpCookies plugin installed, because I'm handling and storing the session cookie outside of Ktor.

What happens is that the very first request that is sent to the server (GET /api/session) contains a Set-Cookie header in the response, and for this request I don't save the cookie nor do anything with it, the request serves only to check if there is a session based solely on the response of the server. Both in Android and iOS we get the Set-Cookie header for this request.

The second request (POST /api/session) is made after the user attempts to log in using their credentials. For this request, we need the response to contain the Set-Cookie header so we can store the session token it contains and then pass it onto further requests. This happens in Android, but not in iOS. I tried removing the first request, and magically, I get a cookie for this one!

Is the iOS backend automatically storing and passing the cookie without my knowledge or consent? As I said before, I didn't install the HttpCookies plugin.

HttpResponse.bodyAsChannel should not try to convert body to object using jackson.

Run following code, expected: no exception, actual: Caused by: io.ktor.serialization.JsonConvertException: Illegal json parameter found

import io.ktor.client.*
import io.ktor.client.engine.apache.*
import io.ktor.client.plugins.contentnegotiation.*
import io.ktor.client.request.*
import io.ktor.client.statement.*
import io.ktor.http.*
import io.ktor.serialization.jackson.*
import io.ktor.server.application.*
import io.ktor.server.engine.*
import io.ktor.server.jetty.*
import io.ktor.server.response.*
import io.ktor.server.routing.*
import kotlinx.coroutines.runBlocking

fun main() {
    embeddedServer(Jetty, 8787) {
        routing {
            get("/") {
                call.respondText("{ }", ContentType.Application.Json, HttpStatusCode.OK)
            }
        }
    }.apply { start() }

    val client = HttpClient(Apache) {
        install(ContentNegotiation) {
            jackson {}
        }
    }

    runBlocking {
        val response = client.get("http://localhost:8787")
        response.bodyAsChannel()
    }
}

I execute a request from the application to ios and pass a string in Cyrillic to the query, I get an error when executing the query. if the string consists of Latin characters, then everything is fine. There is no such problem on the Android platform.

To reproduce the issue:

1. Clone documentation repo: https://github.com/ktorio/ktor-documentation
2. Open the codeSnippets project in IDEA: https://github.com/ktorio/ktor-documentation/tree/2.0.0-kmm-tutorial/codeSnippets
3. Run the client-engine-darwin sample: ./gradlew :client-engine-darwin:runReleaseExecutableNative

=> The application is hanging in this state:

66% EXECUTING 
> :client-engine-darwin:runReleaseExecutableNative

Version: 2.0.0-eap-327

P.S. The same example for Curl works fine: https://github.com/ktorio/ktor-documentation/blob/2.0.0-kmm-tutorial/codeSnippets/snippets/client-engine-curl/src/nativeMain/kotlin/Main.kt

When I try to fetch html and analyze it in Multiplatform Mobile share lib, I got a crash in iOS, but work well in Android.

iOS error msg: IllegalArgumentException("List has more than one element.")

URL: https://mp.weixin.qq.com/s/UJipNKgGPzZ1iPJBAaLJXw

so I compile the ktor source code and debug inside, and then I foud out the reason is that the response header "content-type" has a repeated key-value entry，As shown below:

In this case, iOS native network lib will merge them into one key-value entry like {"content-type" : "text/html; charset=UTF-8 , text/html; charset=UTF-8" } .

But on the other hand, ContentType.parse() will parse "content-type" header and get two HeaderValue, after that it invoke Colloection.single() to check the result, then a IllegalArgumentException("List has more than one element.") will be throw.

I checked the implementation of other platforms，browserjs have the same issue.

To reproduce run the following code:

val client = HttpClient {
    expectSuccess = true
    HttpResponseValidator {
        handleResponseExceptionWithRequest { exception, request ->
            request.call.request.url // for request.call.response.status it happens too
        }
    }
}

client.get("https://httpbin.org/404").bodyAsText()

As a result, an unexpected UninitializedPropertyAccessException is thrown:

Exception in thread "main" kotlin.UninitializedPropertyAccessException: lateinit property request has not been initialized
	at io.ktor.client.call.HttpClientCall.getRequest(HttpClientCall.kt:39)
	at ClientKt$main$client$1$1$1.invokeSuspend(client.kt:44)
	at ClientKt$main$client$1$1$1.invoke(client.kt)
	at ClientKt$main$client$1$1$1.invoke(client.kt)
	at io.ktor.client.plugins.HttpCallValidator.processException(HttpCallValidator.kt:53)
	at io.ktor.client.plugins.HttpCallValidator.access$processException(HttpCallValidator.kt:39)
	at io.ktor.client.plugins.HttpCallValidator$Companion$install$1.invokeSuspend(HttpCallValidator.kt:128)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at io.ktor.util.pipeline.SuspendFunctionGun.resumeRootWith(SuspendFunctionGun.kt:141)
	at io.ktor.util.pipeline.SuspendFunctionGun.access$resumeRootWith(SuspendFunctionGun.kt:14)
	at io.ktor.util.pipeline.SuspendFunctionGun$continuation$1.resumeWith(SuspendFunctionGun.kt:58)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
	at io.ktor.util.pipeline.SuspendFunctionGun.resumeRootWith(SuspendFunctionGun.kt:138)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(SuspendFunctionGun.kt:112)
	at io.ktor.util.pipeline.SuspendFunctionGun.access$loop(SuspendFunctionGun.kt:14)
	at io.ktor.util.pipeline.SuspendFunctionGun$continuation$1.resumeWith(SuspendFunctionGun.kt:62)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
	at kotlinx.coroutines.DispatchedTaskKt.resume(DispatchedTask.kt:178)
	at kotlinx.coroutines.DispatchedTaskKt.dispatch(DispatchedTask.kt:166)
	at kotlinx.coroutines.CancellableContinuationImpl.dispatchResume(CancellableContinuationImpl.kt:397)
	at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl(CancellableContinuationImpl.kt:431)
	at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl$default(CancellableContinuationImpl.kt:420)
	at kotlinx.coroutines.CancellableContinuationImpl.resumeWith(CancellableContinuationImpl.kt:328)
	at kotlinx.coroutines.ResumeAwaitOnCompletion.invoke(JobSupport.kt:1412)
	at kotlinx.coroutines.JobSupport.notifyCompletion(JobSupport.kt:1519)
	at kotlinx.coroutines.JobSupport.completeStateFinalization(JobSupport.kt:323)
	at kotlinx.coroutines.JobSupport.finalizeFinishingState(JobSupport.kt:240)
	at kotlinx.coroutines.JobSupport.tryMakeCompletingSlowPath(JobSupport.kt:906)
	at kotlinx.coroutines.JobSupport.tryMakeCompleting(JobSupport.kt:863)
	at kotlinx.coroutines.JobSupport.makeCompletingOnce$kotlinx_coroutines_core(JobSupport.kt:828)
	at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:100)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)

I wrote custom plugin takes care about internet connection. If it's no connection it throws an exception. On 1.6.7 it worked as expected.

I expect that exception won't be handled by ktor internal logic. Now it looks like no exception had been thrown at all.

I debug this, onNoConnection block calls as usual.

class ConnectionStatePlugin private constructor(
    private val isConnected: () -> Boolean,
    private val onNoConnection: () -> Unit
) {

    class Config {
        var checkConnection: () -> Boolean = { false }
        var onNoConnection: () -> Unit = { throw Exception() }
        fun build() = ConnectionStatePlugin(
            isConnected = checkConnection,
            onNoConnection = onNoConnection
        )
    }

    companion object Plugin : HttpClientPlugin<Config, ConnectionStatePlugin> {
        override val key = AttributeKey<ConnectionStatePlugin>("ConnectionStatePlugin")

        override fun prepare(block: Config.() -> Unit) = Config().apply(block).build()

        override fun install(plugin: ConnectionStatePlugin, scope: HttpClient) {
            scope.requestPipeline.intercept(HttpRequestPipeline.State) {
                with(plugin) {
                    if (!isConnected()) {
                        onNoConnection()
                    }
                }
            }
        }
    }
}

install(ConnectionStatePlugin) {
    checkConnection = { connectionStateChecker.isOnline() }
    onNoConnection = { throw NoInternetException() }
}

Tested on Kotlin/Native with ktor-server-test-host:2.0.0 dependency.
I'm defining a Route that returns a ByteArray representing a JPEG image to use it as a stub for some external service that would be called by a Ktor Client.

testApplication {
    routing {
        imageStub(imageBytes)
    }
    client.get("image.jpeg")
}

private fun Route.imageStub(imageBytes: ByteArray) {
    get("image.jpeg") {
        call.respondBytes(ContentType.Image.JPEG) { imageBytes }
    }
}

The client that is available in testApplication block sometimes fails to complete the request with IllegalStateException:

kotlin.IllegalStateException: Expected 2305888, actual 2305632

It's reproducible on Linux and Mac. I'm attaching a sample project demonstrating the issue.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1883

Ktor Version and Engine Used (client or server and name)
io.ktor:ktor-server-cio:1.3.2

Describe the bug
Strings like "a", "H" are invalid responses(see https://tools.ietf.org/html/rfc2616#section-6)

To Reproduce
Steps to reproduce the behavior:
Run code:

import io.ktor.http.cio.parseResponse
import io.ktor.utils.io.ByteReadChannel
import kotlinx.coroutines.runBlocking

fun main() {
    listOf("A", "H", "a")
        .forEach { test(it) }
}

fun test(http: String) {
    val response = runBlocking { parseResponse(ByteReadChannel(http)) }!!
    println("status=${response.status};statusText={${response.statusText}};headers=[${response.headers}];version=${response.version}")
}

Expected behavior
An error expected - exception or null result.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1866

Ktor Version and Engine Used (client or server and name)
io.ktor:ktor-server-cio:1.3.2

Describe the bug
Request should include HTTP version(see https://tools.ietf.org/html/rfc2616#section-3.1). Also leading zeros are prohibited.

To Reproduce
Steps to reproduce the behavior:
Run code:

import io.ktor.http.cio.parseRequest
import io.ktor.utils.io.ByteReadChannel
import kotlinx.coroutines.runBlocking

fun main() {
    listOf(
        """
        GET / HTTP/1.6
        Host: www.example.com


        """.trimIndent(),
        """
        GET / HTPT/1.1
        Host: www.example.com


        """.trimIndent(),
        """
        GET / _
        Host: www.example.com


        """.trimIndent(),
        """
        GET / HTTP/1.01
        Host: www.example.com


        """.trimIndent()
    ).forEach {
        test(it)
    }

}

fun test(http: String) {
    val request = runBlocking { parseRequest(ByteReadChannel(http)) }!!
    println("method=${request.method};version=${request.version};uri={${request.uri}};headers=[${request.headers}]")
}

Expected behavior
An error expected - exception or null result.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1864

Ktor Version and Engine Used (client or server and name)
io.ktor:ktor-server-cio:1.3.2

Describe the bug
The colon after the host parameter requires a port(see https://tools.ietf.org/html/rfc3986#section-3.2.3)

To Reproduce
Steps to reproduce the behavior:
Run code:

import io.ktor.http.cio.parseRequest
import io.ktor.utils.io.ByteReadChannel
import kotlinx.coroutines.runBlocking

fun main() {
    test(
        """
        GET / HTTP/1.1
        Host: www.example.com:


        """.trimIndent()
    )
}

fun test(http: String) {
    val request = runBlocking { parseRequest(ByteReadChannel(http)) }!!
    println("method=${request.method};uri={${request.uri}};headers=[${request.headers}]")
}

Expected behavior
An error expected - exception or null result.

The documentation (https://ktor.io/docs/testing.html#auto) states that you

can disable loading modules by customizing an environment for tests

However, it does not explain how the environment exactly has to look like to disable automatic loading.

https://ktor.io/docs/http-client-engines.html#limitations

        val javaClient = HttpClient(Java) {
            engine {
                config {
                    sslContext(SslSettings.getSslContext())
                    version(java.net.http.HttpClient.Version.HTTP_2)
                }
            }
        }


        val okHttpClient = HttpClient(OkHttp) {
            engine {
                config {
                    sslSocketFactory(SslSettings.getSslContext()!!.socketFactory, SslSettings.getTrustManager())
                    protocols(listOf(Protocol.HTTP_1_1))
                }
            }
        }

• https://ktor.io/docs/getting-started-ktor-client-multiplatform-mobile.html#build-script
• update coroutines version https://github.com/Kotlin/kotlinx.coroutines

https://jbs.zendesk.com/agent/tickets/4049802

• https://ktor.io/docs/client-dependencies.html - mention multiplatform and common source set
• add links from topics for specific plugins

Can someone tell me difference between maxConnectionsCount, maxConnectionsPerRoute, pipelineMaxSize in http client with CIO engine.
Also what is the role of threadsCount with coroutines in CIO engine ? The kotlin doc inside :

maxConnectionsCount = Maximum allowed connections count.
maxConnectionsPerRoute = Maximum connections per single route.
pipelineMaxSize = Maximum number of requests per single pipeline.
threadsCount = Network threads count advice.

It is crisp, and I understand it, but I also assume here. I would like :

1. A better explanation.
2. Which of these properties have a relationship with another ?
3. How high can these values be set, and what are the consequences of those, for example in regards to resources (like cpu, memory, file descriptors etc) and performance (like can client choke, have a big queue, make app crash, make request durations worse etc) ?
4. Is there a recommended threshold/ or tuning ?

Thank you :)

There should be a documentation about how to configure libcurl on Windows using minGW and Cygwin to be able to use ktor-client-curl engine.
The issue KTOR-3989 if resolved should be documented too.
Also, some information about troubleshooting common problems would be helpful.

After updating to Ktor 2.0.1 from 1.6.8, creating HttpClient on non main scope, e.g. like this:

CoroutineScope(Dispatchers.Default).launch {
    val client = HttpClient {  }
    println("client $client")
}

Causes the following crash:

Uncaught Kotlin exception: kotlin.native.IncorrectDereferenceException: Trying to access top level value not marked as @ThreadLocal or @SharedImmutable from non-main thread
2022-05-02 00:44:08.016506+0700 iosApp[35807:564602] [Unknown process name] copy_read_only: vm_copy failed: status 1.
    at 0   iosApp                              0x102f17767        kfun:kotlin.Throwable#<init>(kotlin.String?){} + 95 
    at 1   iosApp                              0x102f1122b        kfun:kotlin.Exception#<init>(kotlin.String?){} + 91 
    at 2   iosApp                              0x102f113df        kfun:kotlin.RuntimeException#<init>(kotlin.String?){} + 91 
    at 3   iosApp                              0x102f2318b        kfun:kotlin.native.IncorrectDereferenceException#<init>(kotlin.String){} + 91 
    at 4   iosApp                              0x102f4129f        ThrowIncorrectDereferenceException + 111 
    at 5   iosApp                              0x1031d4b87        CheckGlobalsAccessible + 43 
    at 6   iosApp                              0x10316635b        kfun:io.ktor.client.plugins#<get-PLUGIN_INSTALLED_LIST>(){}io.ktor.util.AttributeKey<io.ktor.util.Attributes> + 31 
    at 7   iosApp                              0x103148423        kfun:io.ktor.client.HttpClientConfig.install$<anonymous>_1-3#internal + 283 
    at 8   iosApp                              0x103148c6b        kfun:io.ktor.client.HttpClientConfig.$install$<anonymous>_1-3$FUNCTION_REFERENCE$22.invoke#internal + 95 
    at 9   iosApp                              0x103148d77        kfun:io.ktor.client.HttpClientConfig.$install$<anonymous>_1-3$FUNCTION_REFERENCE$22.$<bridge-UNNN>invoke(-1:0){}#internal + 95 
    at 10  iosApp                              0x1031475a3        kfun:io.ktor.client.HttpClientConfig#install(io.ktor.client.HttpClient){} + 699 
    at 11  iosApp                              0x1031428c7        kfun:io.ktor.client.HttpClient#<init>(io.ktor.client.engine.HttpClientEngine;io.ktor.client.HttpClientConfig<out|io.ktor.client.engine.HttpClientEngineConfig>){} + 3167 
    at 12  iosApp                              0x1031430ab        kfun:io.ktor.client.HttpClient#<init>(io.ktor.client.engine.HttpClientEngine;io.ktor.client.HttpClientConfig<out|io.ktor.client.engine.HttpClientEngineConfig>;kotlin.Boolean){} + 135 
    at 13  iosApp                              0x103145bf7        kfun:io.ktor.client#HttpClient(io.ktor.client.engine.HttpClientEngineFactory<0:0>;kotlin.Function1<io.ktor.client.HttpClientConfig<0:0>,kotlin.Unit>){0§<io.ktor.client.engine.HttpClientEngineConfig>}io.ktor.client.HttpClient + 635 
    at 14  iosApp                              0x10318132b        kfun:io.ktor.client#HttpClient(kotlin.Function1<io.ktor.client.HttpClientConfig<*>,kotlin.Unit>){}io.ktor.client.HttpClient + 379 
    at 15  iosApp                              0x1031989d7        kfun:com.example.myapplication.Greeting.$<init>$lambda-1COROUTINE$0.invokeSuspend#internal + 275 
    at 16  iosApp                              0x102f1b5eb        kfun:kotlin.coroutines.native.internal.BaseContinuationImpl#resumeWith(kotlin.Result<kotlin.Any?>){} + 527 
    at 17  iosApp                              0x103056893        kfun:kotlinx.coroutines.DispatchedTask#run(){} + 2659 
    at 18  iosApp                              0x10301460f        kfun:kotlinx.coroutines.EventLoopImplBase#processNextEvent(){}kotlin.Long + 663 
    at 19  iosApp                              0x10306cfbf        kfun:kotlinx.coroutines#runEventLoop(kotlinx.coroutines.EventLoop?;kotlin.Function0<kotlin.Boolean>){} + 695 
    at 20  iosApp                              0x103072f83        kfun:kotlinx.coroutines.WorkerCoroutineDispatcherImpl.start$lambda-0#internal + 295 
    at 21  iosApp                              0x1030730a7        kfun:kotlinx.coroutines.WorkerCoroutineDispatcherImpl.$start$lambda-0$FUNCTION_REFERENCE$120.invoke#internal + 67 
    at 22  iosApp                              0x103073197        kfun:kotlinx.coroutines.WorkerCoroutineDispatcherImpl.$start$lambda-0$FUNCTION_REFERENCE$120.$<bridge-UNN>invoke(){}#internal + 67 
    at 23  iosApp                              0x102f25a43        WorkerLaunchpad + 187 
    at 24  iosApp                              0x1031ec95b        _ZN6Worker19processQueueElementEb + 1951 
    at 25  iosApp                              0x1031ec147        _ZN12_GLOBAL__N_113workerRoutineEPv + 99 
    at 26  libsystem_pthread.dylib             0x1cba8a90f        _pthread_start + 115 
    at 27  libsystem_pthread.dylib             0x1cba85b1b        thread_start + 7 

Sample project attached

The AuthenticatePhase and ChallengePhase public phases were effectively replaced with corresponding internal hooks so users who relied on those phases are confused about migration.
https://kotlinlang.slack.com/archives/C0A974TJ9/p1651080437152879
https://kotlinlang.slack.com/archives/C0A974TJ9/p1650208125786219

https://kotlinlang.slack.com/archives/C0A974TJ9/p1651135642260839?thread_ts=1651080437.152879&cid=C0A974TJ9

In Ktor 1.6.8 there is the parameter method for the HttpRequestBuilder that adds query parameters to a request URL. In the Ktor 2.0.0, we build a request in the scope of the DefaultRequestBuilder that doesn't have such a method so users are confused.

https://kotlinlang.slack.com/archives/C0A974TJ9/p1644019110608419
https://kotlinlang.slack.com/archives/C0A974TJ9/p1649848172192389
https://stackoverflow.com/questions/72042828/ktor-parameters-with-defaultrequest-2-x

Hi,
I'm unable to build the project on Mac:

*Execution failed for task ':ktor-client:ktor-client-curl:cinteropLibcurlMacosArm64'.
*
I have installed curl & ncurses.
Any idea what might be the issue?

Thanks!

IntelliJ IDEA 2021.2.4 (Ultimate Edition)

Build #IU-212.5712.43, built on December 21, 2021

Runtime version: 11.0.13+8-b1504.49 x86_64

VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.

macOS 11.6.5

GC: G1 Young Generation, G1 Old Generation

Memory: 4094M

Cores: 16

Non-Bundled Plugins: com.intellij.nativeDebug (212.5284.19), org.jetbrains.kotlin (212-1.6.21-release-334-IJ5457.46), kotest-plugin-intellij (1.1.49-IC-2021.2.3)

Kotlin: 212-1.6.21-release-334-IJ5457.46

We are getting more users and generator gets higher RPS rate which leads to memory usage growth.

Most of the requests are first-page requests from IDE (as logs show)
We need to consider limiting requests from IDE via hardcoding first page content and only make requests in background in case user really does something.

To reproduce run the ./gradlew run command in the HttpBin sample directory.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/985

Ktor Version

1.1.3

Ktor Engine Used(client or server and name)

Server - Jetty

JVM Version, Operating System and Relevant Context

Azul 10, OSX / Debian Linux

Feedback

Currently, when you respond with a string, even if you have a header of Accept=application/json, due to fun ApplicationSendPipeline.installDefaultTransformations(), TextContent is always returned. This means you can't return a bare json string, ie "foo".

The special case of String is handled here:

@KtorExperimentalAPI
fun PipelineContext<Any, ApplicationCall>.transformDefaultContent(value: Any): OutgoingContent? = when (value) {
    is OutgoingContent -> value
    is String -> {
        val contentType = call.defaultTextContentType(null)
        TextContent(value, contentType, null)
    }
    is ByteArray -> {
        ByteArrayContent(value)
    }
    is HttpStatusCode -> {
        HttpStatusCodeContent(value)
    }
    is URIFileContent -> {
        if (value.uri.scheme == "file")
            LocalFileContent(File(value.uri))
        else
            null
    }
    else -> null
}

We have the following block in the io.ktor.server.engine.BaseApplicationEngine

environment.monitor.subscribe(ApplicationStarted) { val finishedAt = currentTimeMillisBridge() val elapsedTimeInSeconds = (finishedAt - info.initializedStartAt) / 1_000.0 if (info.isFirstLoading) { environment.log.info("Application started in $elapsedTimeInSeconds seconds.") info.isFirstLoading = false } else { environment.log.info("Application auto-reloaded in $elapsedTimeInSeconds seconds.") } }

The first section of the if statement is never actually called because the isFirstLoading is always false

https://github.com/rasharab/KtorBugWithMonitoring

The above is a clear reproduction of this bug (with appropriate test cases to illustrate my point).

This is a regression we observed as of Ktor 2.0.0 (was working with the betas).

The gist of the bug is that if we add an MDC context for the application JWTPrincipal, that somehow causes the application call parameters to be reset during Authentication.
This bug is only present if we attempt to do the below block in Monitoring.kt

In Monitoring.kt we have:

 mdc("identityId") {
    it.principal<JWTPrincipal>()?.subject ?: "No subject"
 }

In Security.kt

    authentication {
        jwt("bearerAuth") {
            verifier(
...
            )
            validate { credential ->
                val teamId = this.parameters["teamId"]
                if (teamId == null) {
                    println("TeamID is unexpectedly null!")
                    throw Exception("TeamID is null when it should't be")
                }
                if (credential.payload.audience.contains("audience")) JWTPrincipal(credential.payload) else null
            }
        }
    }

The teamId parameter should always be populated based off the below route, but it isn't when monitoring the JWTPrincipal is enabled.

Our routing is very simple:

fun Application.configureRouting() {
    routing {
        authenticate("bearerAuth") {
            get("/teams/{teamId}") {
                call.respondText("Hello World!")
            }
        }
    }
} 

The Locations plugin's functions which add routes with methods (e.g. get<MyDataClass> { ... } do not return the correct route.

Expected: they should return the route whose selector is the GET method selector (similar to the regular non-Locations get).

Actual: They return the parent of the expected route, meaning that we get a route that matches only the path and not the method.

This is a problem for libraries that rely on the returned route to do other things (in the case of a library I author, Koa, I need the returned route to provide all the information of a path to turn it, via a DSL, into an OpenAPI Operation). The problem comes from these lines (and their equivalents with other HTTP methods): https://github.com/ktorio/ktor/blob/809ebf183c12fb580fdbfa33bf6c13422f4fe19b/ktor-server/ktor-server-plugins/ktor-server-locations/jvm/src/io/ktor/server/locations/Location.kt#L82-L91 which should return the result of method(HttpMethod.Get) instead of returning the return value of location.

In io.ktor:ktor-serialization-jackson:2.0.0, method JacksonWebsocketContentConverter.deserialize is not working at all. This prevent receiving anything with receiveDeserialized in a websocket session.
Turns out, after a quick inspection the problem comes from line 37 where the frame is decoded into a string.

            return withContext(Dispatchers.IO) {
                val data = charset.newDecoder().decode(buildPacket { content.readBytes() })
                objectmapper.readValue(data, objectmapper.constructType(typeInfo.reifiedType))
            }

Here, buildPacket expects a lambda in the context of BytePacketBuilder but no builder method is called. content.readBytes() throws the ByteArray into the wind and the ByteReadPacket is always ByteReadPacket.Empty. The ObjectMapper will then always fail :

2022-04-28 17:10:55.132 [eventLoopGroupProxy-3-3] ERROR ktor.application - Websocket handler failed
io.ktor.serialization.JsonConvertException: Illegal json parameter found
	at io.ktor.serialization.jackson.JacksonWebsocketContentConverter.deserialize(JacksonWebsocketContentConverter.kt:41)
	at io.ktor.serialization.jackson.JacksonWebsocketContentConverter$deserialize$1.invokeSuspend(JacksonWebsocketContentConverter.kt)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:503)
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
	at io.ktor.server.netty.EventLoopGroupProxy$Companion.create$lambda-1$lambda-0(NettyApplicationEngine.kt:263)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: com.fasterxml.jackson.databind.exc.MismatchedInputException: No content to map due to end-of-input
 at [Source: (String)""; line: 1, column: 0]
	at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:59)
	at com.fasterxml.jackson.databind.ObjectMapper._initForReading(ObjectMapper.java:4765)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4667)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3629)
	at io.ktor.serialization.jackson.JacksonWebsocketContentConverter$deserialize$2.invokeSuspend(JacksonWebsocketContentConverter.kt:38)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at kotlinx.coroutines.internal.LimitedDispatcher.run(LimitedDispatcher.kt:39)
	at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:95)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)

This can be fixed by calling writeFully(content.readBytes()) or by rewriting JacksonWebsocketContentConverter.deserialize in a similar fashion to KotlinxWebsocketSerializationConverter.

This test will fail when /src/main/resource∕application.conf has an unnsatisfied substitution {SOME_ENV} even if the test is set to use a file src/test/resources/application-test.conf. Adding the externalServices block is was causing the behavior of looking for /src/main/resource∕application.conf in the test.

I would expect the file given for the test is the one that should be requiered

@Test
    fun testAuth() = testApplication {
        environment {
            config = ApplicationConfig("application-test.conf")
        }
        externalServices {
            //For some reason this one requiers the original config from resources
            hosts("http://example.com"){
        }
}

after upgrading from 2.0.0 to 2.0.1 basically every request causes an exception, what i'm seeing is that requests now append the port in every url:

2.0.0:
https://my-website.com/v2/api

2.0.1:
https://my-website.com:80/v2/api

Many plugins reference RFCs, such as the one for ForwardedHeaders or AuthScheme, and yet it would make sense to reference our own documentation (which in turn actually references RFCs'). This should be applied consistently across the entire code base.

I just tried to refresh my memory on what exactly request, connect, and socket timeouts mean.

However, the in-code documentation for the variables did not yield any additional information:

I'm trying to make secure request(https).

HttpClient(OkHttp) {
    defaultRequest {
        url {
            protocol = URLProtocol.HTTPS
        }
    }

Logger shows me request starts with http. Version 1.6.7 is okay, didn't face this issue before. Am I wrong? What is actually works is to set protocol in HttpRequestBuilder.

I'm creating a client with defaultRequest:

val client = HttpClient {
    install(WebSockets)
    defaultRequest {
        port = portVal
        host = hostVal
    }
}

And connecting to the web socket only by path:

client.webSocket("webSocket")

It was working fine until 2.0.0, and after update it fails with the following exception, both with CIO and OkHttp clients:

Exception in thread "main" java.net.ConnectException: Connection refused
	at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:777)
	at io.ktor.network.sockets.SocketImpl.connect$ktor_network(SocketImpl.kt:50)
	at io.ktor.network.sockets.SocketImpl$connect$1.invokeSuspend(SocketImpl.kt)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at kotlinx.coroutines.internal.LimitedDispatcher.run(LimitedDispatcher.kt:39)
	at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:95)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)

Connecting using full URL work fine:

client.ws("ws://$hostVal:$portVal/$route")

Full code of both server and client: MRE.zip. Same client works fine after downgrading to 1.6.8

I am attempting to make use of a raw web socket in a client application. This was working fine in 1.6.8 but stopped working when I bumped my version to 2.0.0 (I did not see any breaking changes listed in the release notes that should be related). Essentially the code in my ClientWebSession is never being executed and the client.wsRaw(...) { ... } call appears to be suspending forever. I wrote the following test that should reproduce what I am seeing:

@Test
fun bugReport() {
    embeddedServer(Netty, port = 8080) {
        install(io.ktor.server.websocket.WebSockets)
        routing {
            webSocket("/ws") {
                send(Frame.Text("hi"))
                for (frame in incoming) { send(frame) }
            }
        }
    }.start(wait = false)
    val client = HttpClient(CIO) {
        install(WebSockets)
    }
    runBlocking {
        client.wsRaw(path = "/ws", port = 8080) {
            // None of this is executed
            println("Client Session Started")
            incoming.consumeAsFlow().collect { println(it) }
        }
    }
}

None of the ClientWebSession block runs and none of the println(..)s execute. It seems like client.wsRaw is just suspending forever (the code does not complete either).

However this code works fine if you simply switch wsRaw for ws.

@Test
fun bugReportWorking() {
    embeddedServer(Netty, port = 8080) {
        install(io.ktor.server.websocket.WebSockets)
        routing {
            webSocket("/ws") {
                send(Frame.Text("hi"))
                for (frame in incoming) { send(frame) }
            }
        }
    }.start(wait = false)
    val client = HttpClient(CIO) {
        install(WebSockets)
    }
    runBlocking {
        client.ws(path = "/ws", port = 8080) {
            // This works fine
            println("Client Session Started")
            incoming.consumeAsFlow().collect { println(it) }
        }
    }
}

I get

Client Session Started
Frame TEXT (fin=true, buffer len = 2)

as expected.

Furthermore the wsRaw code works as expected on 1.6.8 which is what led me to thinking that this could be a regression vs user error.

To reproduce run the following code:

suspend fun main() {
    val client = HttpClient(Apache) {
        install(Logging) {
            level = LogLevel.ALL
        }
        install(HttpCache)
        install(ContentNegotiation) {
            json()
        }
    }

    while (true) {
        val r = client.get {
            url("http://localhost:3333/")
        }.bodyAsText()

        if (r.length < 5000) {
            println(r)
            break
        }
    }
}

fun main() {
    val source = ByteArray(5000) { 'k'.code.toByte() }
    val chunks = String(source).chunked(256)

    embeddedServer(Netty, port = 3333) {
        routing {
            get("/") {
                call.respondTextWriter(contentType = ContentType.Application.Json) {
                    chunks.forEach { chunk ->
                        write(chunk)
                    }
                }
            }
        }
    }.start()
}

As a result, eventually only some part of a response body will be returned instead of expected full response body.
In Ktor 1.6.7 this works as expected.

Hi, I am trying to use the Ktor 2.0.0 raw sockets for an Android app that is acting as a TCP server.

I bind the address/port and get a server socket without an issue as described here. I then obtain a ByteReadChannel using Socket.openReadChannel().

I am reading binary messages over the connection and I have a need to timeout when receiving the message bytes in case an incomplete message is sent. I am reading the message one byte at a time using ByteReadChannel.readByte() and, since ByteReadChannel doesn't seem to have any timeout feature, I wrapped the reading loop in a withTimeout block so that the timeout will naturally occur while readByte is suspended.

The problem is that, when I try to readByte() again on the same ByteReadChannel after the timeout occurs, I get an IllegalStateException: Operation is already in progress and it seems that the channel can no longer be read. I also tried closing the channel using ByteReadChannel.cancel() and then getting a new channel using Socket.openReadChannel() again. However, this results in an IllegalStateException: reading channel has already been set, implying that you can only ever get one ByteReadChannel for the socket. So it seems that this results in an unusable state that seems to have no resolution without closing the entire connection.

Is this an unexpected behavior (i.e. a bug)? If not, is there some other way I can accomplish a timeout with readByte() instead of it just suspending indefinitely? Here is a suspending function that reproduces this issue:

fun startServer(port: Int) = scope.produce<Unit>(Dispatchers.IO) {
        while (true) {
            val serverSocket = try {
                aSocket(ActorSelectorManager(coroutineContext)).tcp()
                    .bind("0.0.0.0", port)
            } catch (e: Exception) {
                break
            }
            var socket: Socket? = null
            try {
                socket = serverSocket.accept()
                val inputByteChannel = socket.openReadChannel()
                while (isActive) {
                    val stringBytes = mutableListOf<Byte>()
                    try {
                        withTimeout(500) {
                            while (true) {
                                val byte = inputByteChannel.readByte()
                                if (byte == 0.toByte()) {
                                    // Message would be terminated with a 0 byte
                                    break
                                } else {
                                    stringBytes.add(byte)
                                }
                            }
                        }
                        // Here we would do whatever with the complete message
                    } catch (e: TimeoutCancellationException) {
                        //inputByteChannel.cancel(null)
                        //inputByteChannel = socket.openReadChannel()
                    }
                }
            } catch (e: Exception) {
                if (e is CancellationException) {
                    // Cancelled so propagate
                    throw e
                } else if (e is ClosedReceiveChannelException) {
                    // Broken connection
                } else {
                    // Unexpected exception
                }
            } finally {
                // Close resources
                socket?.dispose()
                serverSocket.dispose()
                // It seems that if we immediately loop around and try to bind the port again, we
                // often get a "Address already in use" exception. This delay allows some time
                // for the port to be released before looping back, which seems to work well.
                delay(200)
            }
        }
    }

I feel like there is a typo here? Otherwise, I don't know what files("css") is referring to.

https://jbs.zendesk.com/agent/tickets/3992405

The wait parameter of the start method states that

wait - if true, this function does not exit until application engine stops and exits

Mentioned here: https://api.ktor.io/1.5.2/io.ktor.server.engine/-application-engine/start.html

Does it mean when wait is false, the method will exit before the ApplicationEngine stops. Would this mean it only handles the first request made to it?

To reproduce create a new project via the wizard with the Ktor 2.0.1 and the following plugins: Authentication, JWT, Static Content, WebJars, Cors, HttpsRedirect, HTML DSL, GSON, WebSockets. As a result, the project doesn't compile:

e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/HTTP.kt: (10, 5): Not enough information to infer type variable B
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/HTTP.kt: (10, 13): Unresolved reference: CORS
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/HTTP.kt: (19, 5): Not enough information to infer type variable B
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/HTTP.kt: (19, 13): Unresolved reference: HttpsRedirect
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/HTTP.kt: (21, 9): Variable expected
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/HTTP.kt: (23, 9): Variable expected
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/Security.kt: (17, 31): 'val environment: ApplicationEnvironment' can't be called in this context by implicit receiver. Use the explicit one if necessary
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/Security.kt: (18, 21): 'val environment: ApplicationEnvironment' can't be called in this context by implicit receiver. Use the explicit one if necessary
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/Security.kt: (23, 33): 'val environment: ApplicationEnvironment' can't be called in this context by implicit receiver. Use the explicit one if necessary
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/Serialization.kt: (11, 5): Not enough information to infer type variable B
e: /Users/Aleksei.Tirman/projects/ktor-sample6/src/main/kotlin/com/example/plugins/Serialization.kt: (11, 13): Unresolved reference: ContentNegotiation

IntelliJ IDEA 2022.1 Beta (Ultimate Edition)

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/25

At the moment you cannot create hrefs from a location with trailing /:
/somepath/ as it would end up being /somepath

This should of cause also work for nested Locations, so i could do:

@location("/somepath/") class SomeLocation{
    @location("/nested/") class Nested
}

and get /somepath/and /somepath/nested/

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/543

CIO and Netty behave differently for simple hello-server (e.g. netty-embedded from samples)

embeddedServer(Netty, commandLineEnvironment(args)).start() // Works
embeddedServer(CIO, commandLineEnvironment(args)).start() // Application exits right after start call

Even though one may use start(wait = true), it would be nice for CIO to be a drop-in replacement for Netty

@PublishedApi
internal fun <T : Any> Route.handle(
    serializer: KSerializer<T>,
    body: suspend PipelineContext<Unit, ApplicationCall>.(T) -> Unit
)

This is currently internal, but published API.
Usecase: I want to implement a typed routing plugin, with typed body and response (rpc). I would like to reuse your existing handle function.

In Ktor 2.0, the StatusPages plugin does not match the most specific exception class when one is thrown, which was guaranteed by the documentation in Ktor 1.6 ("Each call is only caught by a single exception handler, the closest exception on the object graph from the thrown exception.") but is seemingly absent in Ktor 2.0's documentation and implementation.

Here is the code of the Ktor 1.6 version: https://github.com/ktorio/ktor/blob/9ca85c50e297a2c0a124f11f1c1a453909417ecf/ktor-server/ktor-server-core/jvm/src/io/ktor/features/StatusPages.kt#L115

Here is the new code for Ktor 2.0: https://github.com/ktorio/ktor/blob/d2f79c55b8e73f0df93bf166892e3f8c362a51f2/ktor-server/ktor-server-plugins/ktor-server-status-pages/jvmAndNix/src/io/ktor/server/plugins/statuspages/StatusPages.kt#L31

It should be noted that the changelog does not mention this breaking change in any way.

Hi there,

I recently started a new project with Ktor and I encountered a strange behavior since 2.0.0.

Context

The application is a REST API using kotlinx serialization as JSON de/serializer. I'm making use of the StatusPages plugin to handle unwanted exceptions like SerializationException or statuses.

Behavior on 2.0.0-beta-1

When a SerializationException occurs, the StatusPages plugin handles it as expected (which in my case means sending back a 400).

Behavior on 2.0.0

When a SerializationException occurs, the StatusPages plugin does not handle a CallFailed event but a ResponseBodyReadyForSend. The content is an HttpStatusCodeContent with a 404.

Investigation

I tracked down the exception until reaching the CallId plugin which has a hook on CallFailed but does not consume the call since it is not a RejectedCallIdException. I then loose track of it but the CallFailed hook of the StatusPages plugin does not get called.

The 404 comes from the Fallback hook of the BaseApplicationEngine because the response's status is null and this is not a routing failure.

Workaround

By declaring the StatusPages plugin after the CallId plugin, the problem is gone.

The workaround is doing great without impacts for now but maybe others plugins have bad interactions between them.

package com.example
import io.ktor.server.application.*
import io.ktor.server.engine.*
import io.ktor.server.netty.*
import io.ktor.server.plugins.conditionalheaders.*
import io.ktor.server.response.*
import io.ktor.server.routing.*
import java.time.ZonedDateTime

// Gradle implementation
/*
dependencies {
    implementation "io.ktor:ktor-server-conditional-headers:$ktor_version"
    implementation "io.ktor:ktor-server-core:$ktor_version"
    implementation "io.ktor:ktor-server-netty:$ktor_version"
    implementation "ch.qos.logback:logback-classic:$logback_version"
    testImplementation "io.ktor:ktor-server-tests-jvm:$ktor_version"
    testImplementation "org.jetbrains.kotlin:kotlin-test-junit:$kotlin_version"
}
*/
fun main() {
    embeddedServer(Netty, port = 8080, host = "0.0.0.0") {
        install(ConditionalHeaders) {  }
        routing {
            get("/") {
                val lastModified = ZonedDateTime.now()
                call.response.lastModified(lastModified)
                call.respondText("Hello World!")
            }
        }
    }.start(wait = true)
}

Response heders:

Last-Modified: Thu, 14 Apr 2022 11:44:49 GMT
Last-Modified: Thu, 14 Apr 2022 11:44:49 GMT
Content-Length: 12
Content-Type: text/plain; charset=UTF-8
Connection: keep-alive

If comment install(ConditionalHeaders) { } response is as expected, Last-Modified appears only once as it should.

install(DefaultHeaders) {
    header(HttpHeaders.Server, "BRS")
    header("X-Content-Type-Options", "nosniff")
}
...
 call.response.lastModified(lastModified)

Response look like:

HTTP/1.1 200 OK
<span style="color:dodgerblue;">**Last-Modified: Tue, 12 Apr 2022 19:06:45 GMT**</span>
Expires: Tue, 12 Apr 2022 20:06:45 GMT
Vary: Accept-Encoding
X-Frame-Options: SAMEORIGIN
Date: Tue, 12 Apr 2022 19:06:45 GMT
**Server: BRS**
X-Content-Type-Options: nosniff
**Server: Ktor/debug**
<span style="color:dodgerblue;">**Last-Modified: Tue, 12 Apr 2022 19:06:45 GMT**</span>
Content-Encoding: gzip
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
transfer-encoding: chunked

Server and Last-Modified appears twice in response header with Ktor v2.0.0

We use an application.conf which dynamically resolves a lot of its variables from the environment with directives like host = ${MY_HOST}. In tests we define a custom ApplicationConfig which resolves these env placeholders in case the environment variables are not set (i.e. when using IDEA).
In Ktor 2.0 (beta-1) I thought I could make this work with something like the following:

testApplication {
    environment {
        this.config = MyAppConfig()
    }
}

However this does not work since TestApplicationBuilder will force loading of application.conf via DefaultTestConfig() with no way to skip this process. It'd be real nice if ktor only does automatic loading if no manual config is provided (like in a fallback getter).

It's not even possible to create your own TestApplication to work around this issue - the provided builder block also is only called after TestApplicationBuilder has already tried loading the application.conf (and of course crashes on it).

1. Open the https://github.com/ktorio/ktor-documentation/tree/2.0.0/codeSnippets project.
2. Open the upload-file sample and go to the test: https://github.com/ktorio/ktor-documentation/blob/2.0.0/codeSnippets/snippets/upload-file/src/test/kotlin/UploadFileTest.kt
3. Run the testUpload test.

=> A test hangs and doesn't return the result

P.S. The same code works fine in the client.

Ktor version: 2.0.0-eap-355

The following code snippet worked using Ktor 1.6.x (i.e. it correctly led to a 404 error being reported):

suspend fun main() {
    val client = HttpClient(CIO) {
        install(WebSockets)
    }
    client.wss(
        method = HttpMethod.Get,
        host = "rueckgr.at",
        path = "/websocket"
    ) {
        /* do stuff */
    }
}

However, it stopped working after migrating to Ktor 2.0.0, throwing this exception:

Exception in thread "main" java.lang.IllegalArgumentException: Invalid TLS record type code: 72
	at io.ktor.network.tls.TLSRecordType$Companion.byCode(TLSRecordType.kt:27)
	at io.ktor.network.tls.ParserKt.readTLSRecord(Parser.kt:19)
	at io.ktor.network.tls.ParserKt$readTLSRecord$1.invokeSuspend(Parser.kt)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at kotlinx.coroutines.internal.LimitedDispatcher.run(LimitedDispatcher.kt:39)
	at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:95)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)

If I explicitely request port 443 to be used, the above IllegalArgumentException goes away:

suspend fun main() {
    val client = HttpClient(CIO) {
        install(WebSockets)
    }
    client.wss(
        method = HttpMethod.Get,
        host = "rueckgr.at",
        port = 443,
        path = "/websocket"
    ) {
        /* do stuff */
    }
}

This means that for HttpClient.wss the port does not default to 443 anymore as it was the case when using Ktor 1.6.x.

Also it would be good to allow publishing to the local repository instead of Gradle Plugin Portal.

We need to separate messages with line breaks and colors (for instance, red for critical errors, and greed for success messages)

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/556

Since client is MPP now, it'll be great if websocket support also ported to MPP. Now it's jvm-only since http-cio is jvm module.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/684

My team is trying to move from using OkHttp to using ktor as our HttpClient. We've found this difficult because there doesn't seem to be a way to set the default base url.

If we have the following requests:

https://www.example.com/api/getA/
https://www.example.com/api/getB/
https://www.example.com/api/getC/

It's common practice to have the ability to set the base url for the http client as https://www.example.com/api/, and then only specify the suffix of the path (/getA/, /getB/, /getC/) at the actual request site.

I like the way you can create a defaultRequest when creating the http client with ktor and then intuitively override what's needed at the request site, however this functionality needs to be extended to allow the inclusion of path data in the base url. This functionality is available in OkHttp and also Retrofit. Otherwise it requires significant refactoring in our code-base when switching between environments, as base urls and base paths often change between environments. I imagine this will be a common problem.

If somehow this is already possible, it's not clear that it is, and in which case, this should be documented better.

Can't send request from ServiceWorker, it fails with `require is not defined`

throws here: https://github.com/ktorio/ktor/blob/0081f943b434bdd0afd82424b389629e89a89461/ktor-client/ktor-client-core/js/src/io/ktor/client/engine/js/compatibility/Utils.kt#L47

Reason: https://github.com/ktorio/ktor/blob/c4a3d84d4b4a433c30f6803b24c0317ae4adf235/ktor-utils/js/src/io/ktor/util/PlatformUtilsJs.kt

ServiceWorker scope doesn't have the window object.

This is a suggestion for service worker support: https://github.com/ktorio/ktor/pull/2696

If the Logging plugin is installed the Ktor client deadlocks/blocks sometimes after BODY START is printed to the console.

The response is still getting returned back to the calling function, but any future requests will block.

It doesn't happen every time, but it is reasonably easy to reproduce it with the attached Sample app.

When data for a HttpClient response is streamed using ByteReadChannel, exceptions thrown while the channel is read may cause the client to break, so that all subsequent requests with this client instance fail. In particular, I'm having issues when the client encounters truncated HTTP responses using chunked encoding, causing TruncatedChunkException with the Apache engine and EOFException with the CIO engine. I would expect such malformed HTTP responses to affect the current request only, but here all subsequent requests with the same client also throw the original exception. I can only recover by instantiating a new client.

The API in question is the following:

httpClient.request<HttpStatement>(url)
  .execute { response ->
    val receiveChannel = response.receive<ByteReadChannel>()
    
    // Consume the channel, e.g. like this
    receiveChannel.copyAndClose(destinationChannel)
  }

It's taken quite some time to understand this behaviour as it occurs very sporadically in our production (it likely gets triggered by network failures), but I have finally been able to reproduce it locally by setting up a TCP server to respond with truncated HTTP.

Minimal reproducible example:
Gist: https://gist.github.com/daniesso/de5912ef2f13b87a5324c4b8e3c17410
Runnable repo: https://github.com/daniesso/Ktor-HttpClient-chunked-encoding

Platform: JVM
Ktor version: 1.6.3
OS: MacOS
Engine: Tested with both CIO and Apache

To reproduce run the following code:

suspend fun main() {
    val client = HttpClient(Apache) {
        install(ContentNegotiation) {
            json()
        }
    }

    val r = client.post("https://httpbin.org/post") {
        contentType(ContentType.Image.JPEG)
        setBody(ByteArray(1024))
    }.bodyAsText()
    println(r)
}

As a result, the Content-Type header with the value application/octet-stream will be sent instead of expected image/jpeg.
In the Ktor 2.0.0 the Content-Type header is removed without checking for a matching registration.

Issue created to attach to an already-existing github PR: https://github.com/ktorio/ktor/pull/2660

Description copied below:

Subsystem
Client

Motivation
The ContentConverter documentation as well as the server implementation of ContentNegotiation both specify that ContentConverter::(de)serialize should return null when the converter is not suitable for the current content-type/body. This is to allow other registrations / converters to (de)serialize the content.

The client implementation of ContentNegotiation only tried (de)serialization with the first matching registration.

Solution
Instead of only (de)serializing with the first matching registration, this PR changes the behaviour to filter out matching registrations and try (de)serialization on each until one succeeds.

testErrorHandling fails on JS with assertFailsWith.

I am receiving a cookie looking like that 384f8bdb/sessid=GLU787LwmQa9uLqnM7nWHzBm; path=/.
Using the HttpCookies feature, i want ktor to send the 384f8bdb/sessid=GLU787LwmQa9uLqnM7nWHzBm for all subsequent requests. Unfortunately, the cookie is parsed in a way that ignore everything after 384f8bdb.
I've tracked down the issue to this point:
(commonMain/io/ktor/http/Cookie.kt)

@ThreadLocal
private val clientCookieHeaderPattern = """(^|;)\s*([^()<>@;:/\\"\[\]\?=\{\}\s]+)\s*(=\s*("[^"]*"|[^;]*))?""".toRegex()

When I check the regex against the cookie, it gives the following results:
Problem with that is, the cookie storage only save 384f8bdb="" so the session id is never sent to the server in the following requests.

Is there any workaround for that (using the HttpCookies feature) ?
Is that the wanted behavior for ktor ?

Thanks

I'm mapping a common Exception format in our app, but currently there is no way to get the request in the handleResponseException method. We just have access to the exception.

This limits my ability to pass information back about the exception completely. When I get a crash report on iOS or even on Android sometimes, I'm left with no information about where this crash is coming from (as it's an asyncronous request, and the caller isn't in the callstack). If I had the ability to at least include information about what request is failing, I could track down everywhere this is being used and better find the crash. As it is now, I've got almost no information to go off of.

When Ktor creates a java.net.http.HttpRequest it uses HttpTimeout.socketTimeoutMillis to set HttpRequest.timeout. But in java docs it's clear that HttpRequest.timeout sets timeout for whole request, not for time without any data in a socket, so it's better to use HttpTimeout.requestTimeoutMillis for that.

Place in ktor code where ktor sets HttpRequest.timeout

The HTTP Client gets stuck in the following configuration:

• The Logging plugin is installed, with level=LogLevel.ALL
• HTTP request body as OutputStreamContent, either directly or via ContentNegotiation with Jackson
  • This uses the Blocking IO channels bridge
• The request body is greater than io.ktor.utils.io.BYTE_BUFFER_CAPACITY (4088 bytes)

The Logging plugin splits the request body on two separate Channels, one for doing the logging and the other to be passed to the HTTP engine for request execution.

When splitting the request body, new coroutines are started -- but these use Dispatchers.Unconfined, therefore will continue execution on the same thread. At the same time, OutputAdapter (used by JacksonConverter) will park this thread when content cannot be further flushed/it hasn't been consumed (when the buffer is full). This doesn't give chance to the copy coroutines (started via OutgoingContent.WriteChannelContent.toReadChannel and ByteReadChannel.copyToBoth) to consume the upstream channel.

One (naive) solution could be to use a different dispatcher for the copy operation, to ensure this could progress when blocking adapters (like OutputStreamContent) are used.

// in ObservingUtils.kt
private val executor = Executors.newSingleThreadExecutor().asCoroutineDispatcher()

private fun OutgoingContent.WriteChannelContent.toReadChannel(): ByteReadChannel =
    GlobalScope.writer(executor) {
        writeTo(channel)
    }.channel

I've attached a test, with two scenarios: ~3k and ~6k of text being serialized in a simple JSON with Jackson. The test with 6k scenario hangs indefinitely.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1215

Guys, Do you have any plans to support ktor-http-cio/posix/src/io/ktor/http/cio/websocket?

There is the nice one library https://github.com/korlibs/korio, thanks Carlos.
But now this library is not supported for 1.3.30+ kotlin. And I think we should use best api for this one, like in ktor.

Allowing creating fakes of those classes can help to improve some use cases related to testing and/or creating of some Ktor plugins.

Context: https://kotlinlang.slack.com/archives/C0A974TJ9/p1646239677040239

When logging response from. Ktor-client Logging feature with the help of ResponseObserver, the log does not contains the MDC context.
This mean when tracking all logs bound to an MDC context, response content log remains untracked.

This test illustrates the mentioned scenario :

in package [jvmTest]io.ktor.client.features.logging, in file LoggingTest.kt

@Test
    fun loggingWithMDCContextTest(): Unit = runBlocking {
        val messages: MutableList<String> = mutableListOf()
        val testLogger: Logger = object : Logger by LoggerFactory.getLogger("ktor.test") {
            override fun trace(message: String?) = add("TRACE: $message")
            override fun debug(message: String?) = add("DEBUG: $message")
            override fun info(message: String?) = add("INFO: $message")

            private fun add(message: String?) {
                if (message != null) {
                    val mdcText = MDC.getCopyOfContextMap()?.let { mdc ->
                        if (mdc.isNotEmpty()) {
                            mdc.entries.sortedBy { it.key }
                                .joinToString(prefix = " [", postfix = "]") { "${it.key}=${it.value}" }
                        } else {
                            ""
                        }
                    } ?: ""

                    messages.add(message + mdcText)
                }
            }
        }

        val localTestLogger: io.ktor.client.features.logging.Logger = object : io.ktor.client.features.logging.Logger  {
            override fun log(message: String) {
                testLogger.info(message)
            }
        }

        val client: HttpClient =  HttpClient {
            install(Logging) {
                level = LogLevel.ALL
                logger = localTestLogger
                // responseCoroutineContext = MDCContext()  This is to provide CoroutineContext from feature config
            }
        }

        MDC.put("trace_id", "48b49e15-f7c4-4991-9e33-23850a218718")

        val response: String = withContext(MDCContext()) {
            client.get("https://jsonplaceholder.typicode.com/todos/1")
        }

        MDC.clear()

        assertNotNull(messages)

        assertNotNull(response)
    }

Theory : First I suspected that this is because of EmptyCoroutineContext being used in launch, but when I gave MDCContext() from kotlinx-coroutines-slf4j to it, it still didn't work. Now I suspect, it is because function is provided as a predicate. However, I am not too sure about it. Can you help please ?

Change I tested :

scope.launch(feature.coroutineContext) {
    try {
        feature.responseHandler(sideCall.response)
    } catch (_: Throwable) {
    }

    val content = sideCall.response.content
    if (!content.isClosedForRead) {
        content.discard()
    }
}

where ResponseObserver = public class ResponseObserver(private val responseHandler: ResponseHandler, private val coroutineContext: CoroutineContext = EmptyCoroutineContext)

Elements of messages :

INFO: REQUEST: https://jsonplaceholder.typicode.com/todos/1 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: METHOD: HttpMethod(value=GET) [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: COMMON HEADERS [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> Accept: */* [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> Accept-Charset: UTF-8 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: CONTENT HEADERS [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> Content-Length: 0 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: BODY Content-Type: null [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: BODY START [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO:  [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: BODY END [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: RESPONSE: 200  [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: METHOD: HttpMethod(value=GET) [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: FROM: https://jsonplaceholder.typicode.com/todos/1 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: COMMON HEADERS [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> access-control-allow-credentials: true [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> age: 5692 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> alt-svc: h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> cache-control: max-age=43200 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> cf-cache-status: HIT [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> cf-ray: 63a05ebc7fdf10f3-CPH [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> cf-request-id: 09381989cb000010f38b157000000001 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> content-type: application/json; charset=utf-8 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> date: Sat, 03 Apr 2021 06:51:43 GMT [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> etag: W/"53-hfEnumeNh6YirfjyjaujcOPPT+s" [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct" [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> expires: -1 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> nel: {"max_age":604800,"report_to":"cf-nel"} [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> pragma: no-cache [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> report-to: {"group":"cf-nel","endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report?s=39vBUwnOjgmuV0yQJPiunD1hXHE28ku4%2FDq55GSjP%2B66ufTXnkgV1a%2F2H7DHSc28QRc1OiJA6k%2BKKXceS0z%2BaAFzxTU%2FuDpZCeBrgceQ7gvyxUQ45qbyYIa4sg2x"}],"max_age":604800} [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> server: cloudflare [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> set-cookie: __cfduid=dbe3ed123d14f8db7af7d7697a9f4049f1617432703; expires=Mon, 03-May-21 06:51:43 GMT; path=/; domain=.typicode.com; HttpOnly; SameSite=Lax [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> vary: Origin, Accept-Encoding [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> via: 1.1 vegur [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> x-content-type-options: nosniff [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> x-powered-by: Express [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> x-ratelimit-limit: 1000 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> x-ratelimit-remaining: 999 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: -> x-ratelimit-reset: 1616387857 [trace_id=48b49e15-f7c4-4991-9e33-23850a218718]
INFO: BODY Content-Type: application/json; charset=utf-8
INFO: BODY START
INFO: {
  "userId": 1,
  "id": 1,
  "title": "delectus aut autem",
  "completed": false
}
INFO: BODY END

I am using ktor client v2.0.0-beta1,

I call the API that I called '/me' with the invalid token, then refresh token API as I excepted is called, and it failed because of our server logic,

 my expected behavior is to get the error on my first API('/me') because refreshtoken API is failed. but nothing has happened. even I haven't got the exception anywhere.

If a web server responds to HEAD request with Content-encode: gzip header, ktor client fails with the following exception:

Unexpected exception occurred during switching: kotlinx.coroutines.channels.ClosedReceiveChannelException: Unexpected EOF: expected 10 more bytes
        at io.ktor.utils.io.ByteBufferChannel.readFullySuspend(ByteBufferChannel.kt:594)
        at io.ktor.utils.io.ByteBufferChannel.readFully(ByteBufferChannel.kt:586)
        at io.ktor.utils.io.ByteBufferChannel.readPacketSuspend(ByteBufferChannel.kt:802)
        at io.ktor.utils.io.ByteBufferChannel.readPacket$suspendImpl(ByteBufferChannel.kt:788)
        at io.ktor.utils.io.ByteBufferChannel.readPacket(ByteBufferChannel.kt)
        at io.ktor.utils.io.ByteReadChannelKt.readPacket(ByteReadChannel.kt:207)
        at io.ktor.util.EncodersJvmKt$inflate$1.invokeSuspend(EncodersJvm.kt:68)
        at io.ktor.util.EncodersJvmKt$inflate$1.invoke(EncodersJvm.kt) 
        at io.ktor.util.EncodersJvmKt$inflate$1.invoke(EncodersJvm.kt) 
        at io.ktor.utils.io.CoroutinesKt$launchChannel$job$1.invokeSuspend(Coroutines.kt:132)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
        at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)

Receiving byte array data by GET request with using ktor-client-curl on native (macosX64) seems to be leaking memory, here's the snippet used to reproduce:

    repeat(1000) {
        runBlocking {
                client.get("http://some-test-image.jpg")
                val responseBody: ByteArray = httpResponse.receive()
        }
    }

Running that code shows constantly increasing memory usage of the process - using quite big images seems to be quickest way to observe it. This seems to be reproducible with 1.5.3, 1.6.0, 1.6.7 as well as with 2.0.0-beta-1 (with introduced API changes into snippet). I actually cherry-picked these versions amongst others and each seems to be affected.

Is there anything I'm assuming wrong here? I would expect heap size to stabilise around some usage instead.

Ktor version: 2.0.0-beta-1

I migrated to Ktor 2.0 but attaching query parameters with api key in defaultRequest seems not to work anymore:

        HttpClient {
            // ... 
            defaultRequest {
                url {
                    protocol = URLProtocol.HTTPS
                    host = "api.themoviedb.org"
                    encodedPath = "/3$encodedPath" // prepend API version to path
                    parametersOf("api_key", "my_api_key_value")
                }
            }
         }

         suspend fun getConfiguration(): ApiConfig = client.get("configuration").body()     

produces:

io.ktor.client.plugins.ClientRequestException: Client request(GET https://api.themoviedb.org/3/configuration) invalid: 401 Unauthorized. Text: "{"status_code":7,"status_message":"Invalid API key: You must be granted a valid key.","success":false}

Query parameters are only appended if I add them to every individual request like this:

    suspend fun getConfiguration(): ApiConfig = client.get("configuration") {
        parameter(API_KEY, API_KEY_VALUE)
    }.body()

Hello, guys! It seems setting defaultRequest.url.protocol on the client side breaks the ability to establish a ws connection. Please, check it out.

If I set defaultRequest.url.protocol, the client tries to establish a ws connection via http GET and fails.

But if I just comment off that setting, everything works.

There currently is an issue when some error is thrown whilst connecting to a websocket
Example:

val session = client.webSocketSession {
        url("<host>")
        header("Authorization", "<auth>")
 }

If the server e.g. returns an unexpected http error code instead of throwing ServerResponseException the following js error gets printed

      var exception = new WebSocketException(JSON.stringify(event));
                                                  ^
TypeError: Converting circular structure to JSON
    --> starting at object with constructor 'Socket'
    |     property 'parser' -> object with constructor 'HTTPParser'
    --- property 'socket' closes the circle
    at JSON.stringify (<anonymous>)
    at WebSocket.<anonymous> (D:\WORK\lavakord\build\js\node_modules\ktor-ktor-client-core-jsLegacy\ktor-ktor-client-core-jsLegacy.js:17440:51)
    at WebSocket.onError (D:\WORK\lavakord\build\js\node_modules\ws\lib\event-target.js:128:16)
    at WebSocket.emit (events.js:311:20)
    at abortHandshake (D:\WORK\lavakord\build\js\node_modules\ws\lib\websocket.js:718:15)
    at ClientRequest.<anonymous> (D:\WORK\lavakord\build\js\node_modules\ws\lib\websocket.js:595:7)
    at ClientRequest.emit (events.js:311:20)
    at HTTPParser.parserOnIncomingClient [as onIncoming] (_http_client.js:603:27)
    at HTTPParser.parserOnHeadersComplete (_http_common.js:119:17)
    at Socket.socketOnData (_http_client.js:476:22)

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1285

Subsystem
Client

Is your feature request related to a problem? Please describe.
Sometimes external service returns 500/502 errors, however, next call can be successful. In this case, do connection retry after a small delay. Similar, a timeout or network errors could be fixed by a retry.

Describe the solution you'd like
I'd like to have separate Ktor Client feature to automate these retries. For example, it can get handler like needRetry: Response -> Bool on input and configurable retry pauses and retry count.

Motivation to include to ktor
Of course, retries can be implemented above the call. However, the client can do them better, because:

• It can preserve low-level resources (like data buffers, resolved headers, etc.)
• It already does retry logic on 401 responses

Right now the FormBuilder and MultiPartFormDataContent support only one streaming primitive Input that is synchronous. This prevents streaming data in environments like JS because it's not viable to block the only thread for reading.

The suggested solution is to implement reading from the ByteReadChannel.

For example, there are no appendIfNameMissing and appendIfNameAndValueMissing. AFAIU, Missing is renamed to Absent.

defaultRequest {
     url("https://base.url/dir/")
     headers.appendIfNameMissing(HttpHeaders.ContentType, ContentType.Application.Json)
}

In the docs sample (https://ktor.io/docs/auth.html#bearer), the bearer authentication is used to access the Google API. The problem is that the Google API doesn't return the WWW-Authenticate with the 401 response when an access token is expired. This causes that the refreshTokens callback isn't called and there is no way to refresh a token.

The log below doesn't have the WWW-Authenticate header in a response:

11:33:50.424 [main] INFO io.ktor.client.HttpClient - REQUEST: https://www.googleapis.com/oauth2/v2/userinfo
11:33:50.424 [main] INFO io.ktor.client.HttpClient - METHOD: HttpMethod(value=GET)
11:33:50.424 [main] INFO io.ktor.client.HttpClient - COMMON HEADERS
11:33:50.425 [main] INFO io.ktor.client.HttpClient - -> Accept: application/json
11:33:50.425 [main] INFO io.ktor.client.HttpClient - -> Accept-Charset: UTF-8
11:33:50.425 [main] INFO io.ktor.client.HttpClient - -> Authorization: Bearer ya29.a0ARrdaM9sworHbT_H9DAQ3VKU9j_DvNdBvGBDBf_H87qioXt49-oZsE7c088qG4PIgBz4fCSrGGsJvMi0hsZO5FMjFpz2HjZ1wjufF7N47LLtQn6maZINLLlgWQ4CUgaRMxpIeb13byee9JqhtBUNPMfhcnYE
11:33:50.425 [main] INFO io.ktor.client.HttpClient - CONTENT HEADERS
11:33:50.425 [main] INFO io.ktor.client.HttpClient - -> Content-Length: 0
11:33:50.536 [main] INFO io.ktor.client.HttpClient - RESPONSE: 401 Unauthorized
11:33:50.536 [main] INFO io.ktor.client.HttpClient - METHOD: HttpMethod(value=GET)
11:33:50.536 [main] INFO io.ktor.client.HttpClient - FROM: https://www.googleapis.com/oauth2/v2/userinfo
11:33:50.536 [main] INFO io.ktor.client.HttpClient - COMMON HEADERS
11:33:50.536 [main] INFO io.ktor.client.HttpClient - -> Accept-Ranges: none
11:33:50.536 [main] INFO io.ktor.client.HttpClient - -> Alt-Svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> Cache-Control: no-cache, no-store, max-age=0, must-revalidate
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> Content-Type: application/json; charset=UTF-8
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> Date: Wed, 01 Dec 2021 08:33:50 GMT
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> Expires: Mon, 01 Jan 1990 00:00:00 GMT
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> Pragma: no-cache
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> Server: ESF
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> Transfer-Encoding: chunked
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> Vary: X-Origin; Referer; Origin,Accept-Encoding
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> X-Content-Type-Options: nosniff
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> X-Frame-Options: SAMEORIGIN
11:33:50.537 [main] INFO io.ktor.client.HttpClient - -> X-XSS-Protection: 0
{
  "error": {
    "code": 401,
    "message": "Request is missing required authentication credential. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.",
    "status": "UNAUTHENTICATED"
  }
}

401 Unauthorized
null

I wanted to test if the ByteArray upload already works on linuxX64 (ticket KTOR-2883), unfortunately it still crashes on the exception. Interestingly though, it only happens on the 200th byte. It's stably repeatable.

Tested on

$ git log
commit c9948dca45146a8c22da7d615e50a5f65cecd6c8 (HEAD -> main, origin/main, origin/HEAD)
Author: Leonid Stashevsky <e5l@users.noreply.github.com>
Date:   Tue Jul 20 11:38:49 2021 +0300

    KTOR-2883 Fix SingleInstancePool freeze (#2558)

Console log

> Task :runDebugExecutableNative
Length 195 ...OK!
Length 196 ...OK!
Length 197 ...OK!
Length 198 ...OK!
Length 199 ...OK!
Length 200 ...FAIL: mutation attempt of frozen <object>@194c6a8
Length 201 ...FAIL: mutation attempt of frozen <object>@197f8e8
Length 202 ...FAIL: mutation attempt of frozen <object>@19a9208
Length 203 ...FAIL: mutation attempt of frozen <object>@19c99e8
Length 204 ...FAIL: mutation attempt of frozen <object>@1a05078
Length 205 ...FAIL: mutation attempt of frozen <object>@19ec988
kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen <object>@19ec988
    at kfun:kotlin.Throwable#<init>(kotlin.String?){} (0x488899)
    at kfun:kotlin.Exception#<init>(kotlin.String?){} (0x481c77)
    at kfun:kotlin.RuntimeException#<init>(kotlin.String?){} (0x481e27)
    at kfun:kotlin.native.concurrent.InvalidMutabilityException#<init>(kotlin.String){} (0x4b4277)
    at ThrowInvalidMutabilityException (0x4b5976)
    at MutationCheck (0x636660)
    at kfun:io.ktor.utils.io.core.object-1.<set-pinned>#internal (0x76a442)
    at kfun:io.ktor.utils.io.core.object-1.disposeInstance#internal (0x76ab4e)
    at kfun:io.ktor.utils.io.pool.SingleInstancePool#recycle(1:0){} (0x7409a1)
    at kfun:io.ktor.utils.io.core.internal.ChunkBuffer#release(io.ktor.utils.io.pool.ObjectPool<io.ktor.utils.io.core.internal.ChunkBuffer>){} (0x72fd81)
    at kfun:io.ktor.utils.io.core.AbstractInput.ensureNext#internal (0x6f217a)
    at kfun:io.ktor.utils.io.core.AbstractInput#ensureNext(io.ktor.utils.io.core.internal.ChunkBuffer){}io.ktor.utils.io.core.internal.ChunkBuffer? (0x6f0d79)
    at kfun:io.ktor.utils.io.core.AbstractInput#ensureNextHead(io.ktor.utils.io.core.internal.ChunkBuffer){}io.ktor.utils.io.core.internal.ChunkBuffer? (0x6f0be0)
    at kfun:io.ktor.utils.io.core.internal#prepareReadNextHead__at__io.ktor.utils.io.core.Input(io.ktor.utils.io.core.internal.ChunkBuffer){}io.ktor.utils.io.core.internal.ChunkBuffer? (0x73ac40)
    at kfun:io.ktor.utils.io.core#readFully__at__io.ktor.utils.io.core.Input(kotlin.ByteArray;kotlin.Int;kotlin.Int){} (0x719f08)
    at kfun:io.ktor.utils.io.core#readBytes__at__io.ktor.utils.io.core.ByteReadPacket(kotlin.Int){}kotlin.ByteArray (0x72cbc0)
    at kfun:io.ktor.utils.io.core#readBytes$default__at__io.ktor.utils.io.core.ByteReadPacket(kotlin.Int;kotlin.Int){}kotlin.ByteArray (0x72cde7)
    at kfun:io.ktor.client.engine.curl.internal.$toCurlByteArrayCOROUTINE$4#invokeSuspend(kotlin.Result<kotlin.Any?>){}kotlin.Any? (0x927eac)
    at kfun:kotlin.coroutines.native.internal.BaseContinuationImpl#resumeWith(kotlin.Result<kotlin.Any?>){} (0x4a87c0)
    at kfun:kotlinx.coroutines.DispatchedTask#run(){} (0x69aebd)
    at kfun:kotlinx.coroutines.EventLoopImplBase#processNextEvent(){}kotlin.Long (0x674b40)
    at kfun:kotlinx.coroutines#runEventLoop(kotlinx.coroutines.EventLoop?;kotlin.Function0<kotlin.Boolean>){} (0x6ace38)
    at kfun:kotlinx.coroutines.BlockingCoroutine.joinBlocking#internal (0x6ac5fd)
    at kfun:kotlinx.coroutines#runBlocking(kotlin.coroutines.CoroutineContext;kotlin.coroutines.SuspendFunction1<kotlinx.coroutines.CoroutineScope,0:0>){0§<kotlin.Any?>}0:0 (0x6abb0a)
    at kfun:kotlinx.coroutines#runBlocking$default(kotlin.coroutines.CoroutineContext?;kotlin.coroutines.SuspendFunction1<kotlinx.coroutines.CoroutineScope,0:0>;kotlin.Int){0§<kotlin.Any?>}0:0 (0x6abfc6)
    at kfun:#main(){} (0x46aa4f)
    at Konan_start (0x46e7ab)
    at Init_and_run_start (0x46eaab)
    at __libc_start_main (0x7f5d447dcb75)
    at  (0x46a903)
    at  ((nil))

main.kt

import io.ktor.client.*
import io.ktor.client.request.forms.*
import io.ktor.client.statement.*
import io.ktor.http.*
import io.ktor.utils.io.core.*
import kotlinx.coroutines.runBlocking

fun main(): Unit = runBlocking {
    var lastError: Exception? = null
    (195..205).forEach { repeatCount ->
        try {
            print("Length $repeatCount ...")
            val data = "a".repeat(repeatCount).toByteArray()

            sendData("http://localhost", 8080, "/api", data)

            println("OK!")
        } catch (e: Exception) {
            println("FAIL: ${e.message}")
            lastError = e
        }
    }

    lastError?.run {
        printStackTrace()
    }
}

private suspend fun sendData(server: String, port: Int, endpoint: String, data: ByteArray) {
    HttpClient {}.submitFormWithBinaryData<HttpResponse>(
        url = "$server:$port$endpoint/upload",
        formData = formData {
            append("blob", data, Headers.build {
                append(HttpHeaders.ContentType, "text/plain")
                append(HttpHeaders.ContentDisposition, "filename=file.txt")
            })
        }
    )
}

build.gradle.kts

plugins {
    kotlin("multiplatform") version "1.5.21"
    kotlin("plugin.serialization") version "1.5.0"
}

group = "me.mira"
version = "1.0-SNAPSHOT"

val kotlinxCliVersion = "0.3.2"
val kotlinxSerialisationVersion = "1.2.1"
val ktorVersion = "1.6.2-SNAPSHOT"
val datetimeVersion = "0.2.1"

repositories {
    mavenCentral()
    mavenLocal()
}

kotlin {
    val hostOs = System.getProperty("os.name")
    val isMingwX64 = hostOs.startsWith("Windows")
    val nativeTarget = when {
        hostOs == "Mac OS X" -> macosX64("native")
        hostOs == "Linux" -> linuxX64("native")
        isMingwX64 -> mingwX64("native")
        else -> throw GradleException("Host OS is not supported in Kotlin/Native.")
    }

    nativeTarget.apply {
        binaries {
            executable {
                entryPoint = "main"
                freeCompilerArgs += "-Xallocator=mimalloc -Xopt-in=kotlin.RequiresOptIn"
            }
        }
    }

    sourceSets {
        val nativeMain by getting {
            dependencies {
                implementation("org.jetbrains.kotlinx:kotlinx-cli:$kotlinxCliVersion")
                implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:$kotlinxSerialisationVersion")
                implementation("io.ktor:ktor-client-core:$ktorVersion")
                implementation("io.ktor:ktor-client-curl:$ktorVersion")
                implementation("io.ktor:ktor-client-logging:$ktorVersion")
                implementation("io.ktor:ktor-client-serialization:$ktorVersion")
                implementation("org.jetbrains.kotlinx:kotlinx-datetime:$datetimeVersion")
            }
        }
        val nativeTest by getting
    }
}

When creating a Kotlin Multiplatform Mobile Library using Ktor, when creating a httpclient with an empty constructor(should use default httpclientengine), then the following exception is thrown:

kotlin.IllegalStateException: Failed to find HttpClientEngineContainer. Consider adding [HttpClientEngine] implementation in dependencies.[kotlin.Exception]

I have added the following to my build gradle:

val iosMain by getting {
    dependencies {
        implementation("io.ktor:ktor-client-ios:$ktor_version")
        implementation("org.jetbrains.kotlinx:kotlinx-serialization-core:$serialization_version")
    }
}
val iosSimulatorArm64Main by getting
iosSimulatorArm64Main.dependsOn(iosMain)
val iosTest by getting {
    dependencies {
        implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version")
    }
}
val iosSimulatorArm64Test by getting
iosSimulatorArm64Test.dependsOn(iosTest)

Android behaves as expected but for some reason ktor is not using the default client engine.

Just for clarity, simply doing:

private val httpClientConfig: HttpClientConfig<*>.() -> Unit = {
    install(JsonFeature) {
        serializer = KotlinxSerializer()
    }
    install(Logging) {
        logger = Logger.DEFAULT
        level = LogLevel.ALL
    }
}
HttpClient(httpClientConfig)

In the common layer, throws the exception, but i would expect it would use the default client engine for each of the platforms respectively.

Kotlin: 1.5.30

Ktor: 1.6.3

Coroutines: 1.5.2-native-mt

When any suspend function or coroutines function is called inside either loadTokens or refreshTokens it causes a crash on iOS as soon as the code is loaded

import io.ktor.client.HttpClient
import io.ktor.client.features.auth.Auth
import io.ktor.client.features.auth.providers.bearer

class Api {
    
    suspend fun check() {

    }

    private val httpClient = HttpClient() {
        install(Auth) {
            bearer {
                loadTokens {
                    check()
                    null
                }
            }
        }
    }
}

Function doesn't have or inherit @Throws annotation and thus exception isn't propagated from Kotlin to Objective-C/Swift as NSError.
It is considered unexpected and unhandled instead. Program will be terminated.

Process finished with exit code 0

ONLY ON iOS, on android work correctly.

I've this class

open class BaseClient(val baseUrl: String) {

    open val serializer = KotlinxSerializer(Json {
        isLenient = true
        ignoreUnknownKeys = true
    })
    open val logLevel = LogLevel.ALL
    open val header = mapOf<String, String>()

    open val client = HttpClient() {
        install(JsonFeature) {
            serializer = this@BaseClient.serializer
        }

        install(Logging) {
            level = logLevel
        }

        defaultRequest {
            header.forEach {
                parameter(it.key, it.value)
            }
            if (this.method != HttpMethod.Get) contentType(ContentType.Application.Json)
        }

    }
}

On Android works correctly on iOS it crash with this error: InvalidMutabilityException: mutation attempt of frozen

If i delete all configuration in install command and configuration of default request, it doesn't crash on iOS.

So if I change from

        install(JsonFeature) {
            serializer = this@BaseClient.serializer
        }

        install(Logging) {
            level = logLevel
        }

        defaultRequest {
            header.forEach {
                parameter(it.key, it.value)
            }
            if (this.method != HttpMethod.Get) contentType(ContentType.Application.Json)
        }

to

        install(JsonFeature)

        install(Logging)

it works correctly.

Is this my bug or yours?

My Environment:

val commonMain by getting {

            dependencies {
                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.9-native-mt")
                implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.0.0")
                implementation("io.ktor:ktor-client-serialization:1.4.1")
                implementation("io.ktor:ktor-client-json:1.4.1")
                implementation("io.ktor:ktor-client-serialization:1.4.1")
                implementation("io.ktor:ktor-client-core:1.4.1")
                implementation("io.ktor:ktor-client-cio:1.4.1")
                implementation("io.ktor:ktor-client-logging:1.4.1")
            }

        }
        val androidMain by getting {
            dependencies {
                implementation("io.ktor:ktor-client-android:1.4.1")
                implementation("androidx.lifecycle:lifecycle-extensions:2.2.0")
                implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.2.0")
                implementation("io.ktor:ktor-client-serialization-jvm:1.4.1")
            }
        }
        val iosMain by getting {
            dependencies {
                implementation("io.ktor:ktor-client-ios:1.4.1")
                implementation("io.ktor:ktor-client-serialization-iosx64:1.4.1")

                implementation("com.github.florent37:multiplatform-livedata-ios:0.0.5")
            }
        }

There is such a ktor configuration only for ios. Ignored ssl certificate.

    actual fun get(): HttpClient {
        return HttpClient(Ios) {
            engine {
                configureSession {
                    handleChallenge { session, task, challenge, completionHandler ->
                        val trust = challenge.protectionSpace.serverTrust
                        completionHandler(NSURLSessionAuthChallengeUseCredential, NSURLCredential.create(trust))
                    }
                }
            }
            install(JsonFeature) {
                serializer = KotlinxSerializer(
                    kotlinx.serialization.json.Json {
                        isLenient = true
                        ignoreUnknownKeys = true
                    }
                )
            }
            install(Logging) {
                logger = Logger.SIMPLE
                //level = LogLevel.ALL
            }
            install(HttpTimeout) {
                connectTimeoutMillis = TIMEOUT_MILLIS
                requestTimeoutMillis = TIMEOUT_MILLIS
            }
        }
    }
}``` 

I get an error on the platform: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen io.ktor.client.engine.ios.IosClientEngineConfig
Also tried this client configuration

```actual object HttpClientImpl {
    actual fun get(): HttpClient {
        return HttpClient {
            engine {
                Ios.config {
                    configureSession {
                        handleChallenge { session, task, challenge, completionHandler ->
                            val trust = challenge.protectionSpace.serverTrust
                            completionHandler(NSURLSessionAuthChallengeUseCredential, NSURLCredential.create(trust))
                        }
                    }
                }
            }

                    install(JsonFeature) {
                        serializer = KotlinxSerializer(
                                kotlinx.serialization.json.Json {
                                    isLenient = true
                                    ignoreUnknownKeys = true
                                }
                        )
                    }

                    install(Logging) {
                        logger = Logger.SIMPLE
                        //level = LogLevel.ALL
                    }

                    install(HttpTimeout) {
                        connectTimeoutMillis = TIMEOUT_MILLIS
                        requestTimeoutMillis = TIMEOUT_MILLIS
                    }
                }
            }
}```

Then the configuration block is ignored.

My goal is to mock the httpClient to test several error cases on Android and iOS (since there are different errors on each platform).
For Android everything work fine, but for iOS I am still facing the same error:
kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen ***.shared.MockEngine

I have tested a lot of iosTest dependencies but didn't succeed to find the good ktor-client-mock.
the last I tested was this one:

        val iosTest by getting {
            dependencies {
                implementation("io.ktor:ktor-client-mock-iosx64:$ktorVersion")
                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-iosx64:$coroutinesVersion")
            }
        }

I am using kotlin 1.4.0 and Ktor 1.4.3

I am running iosTest using :

val iosTest: Task by tasks.creating {
    val device = project.findProperty("iosDevice")?.toString() ?: "iPhone X"
    val testExecutable =
        kotlin.targets.getByName<KotlinNativeTarget>("iosX64").binaries.getTest("DEBUG")
    dependsOn(testExecutable.linkTaskName)
    group = JavaBasePlugin.VERIFICATION_GROUP
    description = "Runs tests for target 'ios' on an iOS simulator"

    doLast {
        exec {
            println(testExecutable.outputFile.absolutePath)
            commandLine(
                "xcrun",
                "simctl",
                "spawn",
                "--standalone",
                device,
                testExecutable.outputFile.absolutePath
            )
        }
    }
}

After updating PeopleInSpace (https://github.com/joreilly/PeopleInSpace) to following dependencies

    const val kotlinCoroutines = "1.3.9-native-mt-2"
    const val ktor = "1.4.1"
    const val kotlinxSerialization = "1.0.0-RC2"

getting following crash in iOS client (as reported in https://github.com/joreilly/PeopleInSpace/issues/11)

Uncaught Kotlin exception: kotlinx.coroutines.CoroutinesInternalError: Fatal exception in coroutines machinery for DispatchedContinuation[MainDispatcher, Continuation @ $<init>$lambda-0COROUTINE$5]. Please read KDoc to 'handleFatalException' method and report this incident to maintainers
    at 0   PeopleInSpaceSwiftUI                0x000000010e1e2b1c kfun:kotlin.Error#<init>(kotlin.String?;kotlin.Throwable?){} + 124
    at 1   PeopleInSpaceSwiftUI                0x000000010e38b83c kfun:kotlinx.coroutines.CoroutinesInternalError#<init>(kotlin.String;kotlin.Throwable){} + 124
    at 2   PeopleInSpaceSwiftUI                0x000000010e3d72e9 kfun:kotlinx.coroutines.DispatchedTask#handleFatalException(kotlin.Throwable?;kotlin.Throwable?){} + 953
    at 3   PeopleInSpaceSwiftUI                0x000000010e3d6ec7 kfun:kotlinx.coroutines.DispatchedTask#run(){} + 3543
    at 4   PeopleInSpaceSwiftUI                0x000000010e40a0b8 kfun:kotlinx.coroutines.DarwinMainDispatcher.dispatch$lambda-0#internal + 88
    at 5   PeopleInSpaceSwiftUI                0x000000010e40a48e kfun:kotlinx.coroutines.DarwinMainDispatcher.$dispatch$lambda-0$FUNCTION_REFERENCE$43.invoke#internal + 62
    at 6   PeopleInSpaceSwiftUI                0x000000010e40a4ee kfun:kotlinx.coroutines.DarwinMainDispatcher.$dispatch$lambda-0$FUNCTION_REFERENCE$43.$<bridge-UNN>invoke(){}#internal + 62
    at 7   PeopleInSpaceSwiftUI                0x000000010e40b5a7 _6f72672e6a6574627261696e732e6b6f746c696e783a6b6f746c696e782d636f726f7574696e65732d636f7265_knbridge8 + 183
    at 8   libdispatch.dylib                   0x000000010f1c28ac _dispatch_call_block_and_release + 12
    at 9   libdispatch.dylib                   0x000000010f1c3a88 _dispatch_client_callout + 8
    at 10  libdispatch.dylib                   0x000000010f1d1f23 _dispatch_main_queue_callback_4CF + 1152
    at 11  CoreFoundation                      0x00007fff203a8276 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
    at 12  CoreFoundation                      0x00007fff203a2b06 __CFRunLoopRun + 2685
    at 13  CoreFoundation                      0x00007fff203a1b9e CFRunLoopRunSpecific + 567
    at 14  GraphicsServices                    0x00007fff2b773db3 GSEventRunModal + 139
    at 15  UIKitCore                           0x00007fff24660af3 -[UIApplication _run] + 912
    at 16  UIKitCore                           0x00007fff24665a04 UIApplicationMain + 101
    at 17  PeopleInSpaceSwiftUI                0x000000010e1281cb main + 75 (/Users/mbonnin/git/PeopleInSpace/ios/PeopleInSpaceSwiftUI/PeopleInSpaceSwiftUI/AppDelegate.swift:5:7)
    at 18  libdyld.dylib                       0x00007fff20257415 start + 1
Caused by: kotlin.native.concurrent.InvalidMutabilityException: Frozen during lazy computation
    at 0   PeopleInSpaceSwiftUI                0x000000010e1ea07d kfun:kotlin.Throwable#<init>(kotlin.String?){} + 93
    at 1   PeopleInSpaceSwiftUI                0x000000010e1e2c2b kfun:kotlin.Exception#<init>(kotlin.String?){} + 91
    at 2   PeopleInSpaceSwiftUI                0x000000010e1e2e7b kfun:kotlin.RuntimeException#<init>(kotlin.String?){} + 91
    at 3   PeopleInSpaceSwiftUI                0x000000010e218d6b kfun:kotlin.native.concurrent.InvalidMutabilityException#<init>(kotlin.String){} + 91
    at 4   PeopleInSpaceSwiftUI                0x000000010e21b419 kfun:kotlin.native.concurrent.FreezeAwareLazyImpl.getOrInit#internal + 1641
    at 5   PeopleInSpaceSwiftUI                0x000000010e21b95e kfun:kotlin.native.concurrent.FreezeAwareLazyImpl#<get-value>(){}1:0 + 670
    at 6   PeopleInSpaceSwiftUI                0x000000010e13f183 kfun:com.surrus.common.remote.PeopleInSpaceApi.<get-client>#internal + 323
    at 7   PeopleInSpaceSwiftUI                0x000000010e13feb7 kfun:com.surrus.common.remote.PeopleInSpaceApi.$fetchPeopleCOROUTINE$0#invokeSuspend(kotlin.Result<kotlin.Any?>){}kotlin.Any? + 2983
    at 8   PeopleInSpaceSwiftUI                0x000000010e141a74 kfun:com.surrus.common.remote.PeopleInSpaceApi#fetchPeople(){}com.surrus.common.remote.AstroResult + 244
    at 9   PeopleInSpaceSwiftUI                0x000000010e146666 kfun:com.surrus.common.repository.PeopleInSpaceRepository.$fetchAndStorePeopleCOROUTINE$2.invokeSuspend#internal + 886
    at 10  PeopleInSpaceSwiftUI                0x000000010e146bb4 kfun:com.surrus.common.repository.PeopleInSpaceRepository.fetchAndStorePeople#internal + 244
    at 11  PeopleInSpaceSwiftUI                0x000000010e1487da kfun:com.surrus.common.repository.PeopleInSpaceRepository.$<init>$lambda-0COROUTINE$5.invokeSuspend#internal + 602
    at 12  PeopleInSpaceSwiftUI                0x000000010e20bba6 kfun:kotlin.coroutines.native.internal.BaseContinuationImpl#resumeWith(kotlin.Result<kotlin.Any?>){} + 758
    at 13  PeopleInSpaceSwiftUI                0x000000010e3d6be2 kfun:kotlinx.coroutines.DispatchedTask#run(){} + 2802
    at 14  PeopleInSpaceSwiftUI                0x000000010e40a0b8 kfun:kotlinx.coroutines.DarwinMainDispatcher.dispatch$lambda-0#internal + 88
    ... and 14 more common stack frames skipped
CoreSimulator 732.17 - Device: iPhone 11 (8BACA2EC-79DF-49D0-937D-AFA747B52692) - Runtime: iOS 14.0 (18A372) - DeviceType: iPhone 11
(lldb) 

The particular code that's triggering this is in PeopleInSpaceRepository. That uses Ktor to make api request and then stores in db (but see same issue if I only do ktor request there)

    init {
        GlobalScope.launch(Dispatchers.Main) {
            fetchAndStorePeople()
        }
    }

I migrated to kotlin 1.5.0 and ktor 1.6.0. I’m using the native-mt version of coroutines 1.5.0.
I have a very simple test that fails on iOS with a kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlin.collections.HashMap while deserializing a simple class that contains less keys than the json

Here is the test below:

    @Serializable
    data class TestData(val key1: String, val key2: String)
​
    @Test
    fun `json serializer should ignore unknown keys`() = runTest {
        val http = HttpClient(MockEngine) {
​
            engine {
                addHandler {
                    respond(
                        status = HttpStatusCode.OK,
                        headers = headersOf(
                            HttpHeaders.ContentType,
                            ContentType.Application.Json.toString()
                        ),
                        content = """
                            {
                                "key1": "value1",
                                "key2": "value2",
                                "key3": "value3"
                            }
                        """.trimIndent()
                    )
                }
            }
​
            Json {
                serializer = KotlinxSerializer(kotlinx.serialization.json.Json {
                    ignoreUnknownKeys = true
                })
            }
        }
        val data = http.get<TestData>()
        assertEquals(TestData("value1", "value2"), data)
    }

Here is the full stacktrace if it can help:

kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlin.collections.HashMap@9390fc68
	at kotlin.Throwable#<init>(Unknown Source)
	at kotlin.Exception#<init>(Unknown Source)
	at kotlin.RuntimeException#<init>(Unknown Source)
	at kotlin.native.concurrent.InvalidMutabilityException#<init>(Unknown Source)
	at <global>.ThrowInvalidMutabilityException(Unknown Source)
	at <global>.MutationCheck(Unknown Source)
	at kotlin.collections.HashMap.<set-length>#internal(Unknown Source)
	at kotlin.collections.HashMap#addKey(Unknown Source)
	at kotlin.collections.HashMap#put(Unknown Source)
	at kotlinx.serialization.json.internal.DescriptorSchemaCache#set(Unknown Source)
	at kotlinx.serialization.json.internal.DescriptorSchemaCache#getOrPut(Unknown Source)
	at kotlinx.serialization.json.internal#getJsonNameIndex__at__kotlinx.serialization.descriptors.SerialDescriptor(Unknown Source)
	at kotlinx.serialization.json.internal.StreamingJsonDecoder.decodeObjectIndex#internal(Unknown Source)
	at kotlinx.serialization.json.internal.StreamingJsonDecoder#decodeElementIndex(Unknown Source)
	at com.bethesomm.http.HttpClientTest.TestData.$serializer#deserialize(Unknown Source)
	at kotlinx.serialization.json.internal#decodeSerializableValuePolymorphic__at__kotlinx.serialization.json.JsonDecoder(Unknown Source)
	at kotlinx.serialization.json.internal.StreamingJsonDecoder#decodeSerializableValue(Unknown Source)
	at kotlinx.serialization.json.Json#decodeFromString(Unknown Source)
	at io.ktor.client.features.json.serializer.KotlinxSerializer#read(Unknown Source)
	at io.ktor.client.features.json.JsonSerializer#read(Unknown Source)
	at io.ktor.client.features.json.JsonFeature.Feature.$install$lambda-1COROUTINE$1.invokeSuspend#internal(Unknown Source)
	at io.ktor.client.features.json.JsonFeature.Feature.$install$lambda-1COROUTINE$1.invoke#internal(Unknown Source)
	at io.ktor.util.pipeline.SuspendFunctionGun.$loop$<anonymous>_2COROUTINE$8.invokeSuspend#internal(Unknown Source)
	at io.ktor.util.pipeline.SuspendFunctionGun.$loop$<anonymous>_2COROUTINE$8.invoke#internal(Unknown Source)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop#internal(Unknown Source)
	at io.ktor.util.pipeline.SuspendFunctionGun#proceed(Unknown Source)
	at io.ktor.util.pipeline.SuspendFunctionGun#proceedWith(Unknown Source)
	at io.ktor.client.features.HttpCallValidator.Companion.$install$lambda-2COROUTINE$22.invokeSuspend#internal(Unknown Source)
	at io.ktor.client.features.HttpCallValidator.Companion.$install$lambda-2COROUTINE$22.invoke#internal(Unknown Source)
	at io.ktor.util.pipeline.SuspendFunctionGun.$loop$<anonymous>_2COROUTINE$8.invokeSuspend#internal(Unknown Source)

To reproduce run the following test:

@Test
fun testSome() = clientTests {
    test { client ->
        var flag = false
        client.post<ByteArray>("$TEST_SERVER/content/echo") {
            body = ByteArray(1025 * 16) { 1 }
            onDownload { _, _ ->
                flag = true
            }
        }
    }
}

Unexpectedly it fails with InvalidMutabilityException:

kotlin.IllegalStateException: Test failed with engine: Curl
kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen kotlin.native.internal.Ref@3113008
	kfun:kotlin.Throwable#<init>(kotlin.String?){} (0x421a49)
	kfun:kotlin.Exception#<init>(kotlin.String?){} (0x41a8b7)
	kfun:kotlin.RuntimeException#<init>(kotlin.String?){} (0x41aa67)
	kfun:kotlin.native.concurrent.InvalidMutabilityException#<init>(kotlin.String){} (0x44e107)
	ThrowInvalidMutabilityException (0x44f736)
	MutationCheck (0xd96aa0)
	kfun:kotlin.native.internal.Ref#<set-element>(1:0){} (0x466472)
	kfun:io.ktor.client.tests.BodyProgressTest.$testSome$lambda-47$lambda-46$<anonymous>_8COROUTINE$44.invokeSuspend#internal (0x983f72)
	kfun:io.ktor.client.tests.BodyProgressTest.$testSome$lambda-47$lambda-46$<anonymous>_8COROUTINE$44.invoke#internal (0x98437e)
	kfun:io.ktor.client.tests.BodyProgressTest.$testSome$lambda-47$lambda-46$<anonymous>_8COROUTINE$44.$<bridge-NNNBB>invoke(kotlin.Long;kotlin.Long){}kotlin.Any?#internal (0x984518)
	kfun:io.ktor.client.utils.$observable$lambda-0COROUTINE$686.invokeSuspend#internal (0x83fcbf)
	kfun:io.ktor.client.utils.$observable$lambda-0COROUTINE$686.invoke#internal (0x840aa3)
	kfun:io.ktor.utils.io.$launchChannel$lambda-0COROUTINE$760.invokeSuspend#internal (0x6323fe)
	kfun:kotlin.coroutines.native.internal.BaseContinuationImpl#resumeWith(kotlin.Result<kotlin.Any?>){} (0x443050)
	kfun:kotlinx.coroutines.DispatchedTask#run(){} (0x5d1f10)
	kfun:kotlinx.coroutines.EventLoopImplBase#processNextEvent(){}kotlin.Long (0x57ee00)
	kfun:kotlinx.coroutines#runEventLoop(kotlinx.coroutines.EventLoop?;kotlin.Function0<kotlin.Boolean>){} (0x5fab4b)
	kfun:kotlinx.coroutines.BlockingCoroutine.joinBlocking#internal (0x5fbdad)
	kfun:kotlinx.coroutines#runBlocking(kotlin.coroutines.CoroutineContext;kotlin.coroutines.SuspendFunction1<kotlinx.coroutines.CoroutineScope,0:0>){0§<kotlin.Any?>}0:0 (0x5fb40e)
	kfun:io.ktor.test.dispatcher#testSuspend(kotlin.coroutines.CoroutineContext;kotlin.coroutines.SuspendFunction1<kotlinx.coroutines.CoroutineScope,kotlin.Unit>){} (0x84ca76)
	kfun:io.ktor.test.dispatcher#testSuspend$default(kotlin.coroutines.CoroutineContext?;kotlin.coroutines.SuspendFunction1<kotlinx.coroutines.CoroutineScope,kotlin.Unit>;kotlin.Int){} (0x84cbbe)
	kfun:io.ktor.client.tests.utils#testWithEngine(io.ktor.client.engine.HttpClientEngineFactory<0:0>;io.ktor.client.tests.utils.ClientLoader?;kotlin.coroutines.SuspendFunction1<io.ktor.client.tests.utils.TestClientBuilder<0:0>,kotlin.Unit>){0§<io.ktor.client.engine.HttpClientEngineConfig>} (0x8d2ea2)
	kfun:io.ktor.client.tests.utils#testWithEngine$default(io.ktor.client.engine.HttpClientEngineFactory<0:0>;io.ktor.client.tests.utils.ClientLoader?;kotlin.coroutines.SuspendFunction1<io.ktor.client.tests.utils.TestClientBuilder<0:0>,kotlin.Unit>;kotlin.Int){0§<io.ktor.client.engine.HttpClientEngineConfig>} (0x8d2ff5)
	kfun:io.ktor.client.tests.utils.ClientLoader#clientTests(kotlin.collections.List<kotlin.String>;kotlin.coroutines.SuspendFunction1<io.ktor.client.tests.utils.TestClientBuilder<io.ktor.client.engine.HttpClientEngineConfig>,kotlin.Unit>){} (0x8dae1f)
	kfun:io.ktor.client.tests.utils.ClientLoader#clientTests$default(kotlin.collections.List<kotlin.String>?;kotlin.coroutines.SuspendFunction1<io.ktor.client.tests.utils.TestClientBuilder<io.ktor.client.engine.HttpClientEngineConfig>,kotlin.Unit>;kotlin.Int){} (0x8db462)
	kfun:io.ktor.client.tests.BodyProgressTest#testSome(){} (0x94e5bd)
	kfun:io.ktor.client.tests.$BodyProgressTest$test$0.$testSome$FUNCTION_REFERENCE$23.invoke#internal (0x98acf5)
	kfun:io.ktor.client.tests.$BodyProgressTest$test$0.$testSome$FUNCTION_REFERENCE$23.$<bridge-UNNN>invoke(-1:0){}#internal (0x98aefb)
	kfun:kotlin.native.internal.test.BaseClassSuite.TestCase#run(){} (0x47be5d)
	kfun:kotlin.native.internal.test.TestRunner.run#internal (0x475a7f)
	kfun:kotlin.native.internal.test.TestRunner.runIteration#internal (0x476ff8)
	kfun:kotlin.native.internal.test.TestRunner#run(){}kotlin.Int (0x477937)
	kfun:kotlin.native.internal.test#testLauncherEntryPoint(kotlin.Array<kotlin.String>){}kotlin.Int (0x46ba9e)
	kfun:kotlin.native.internal.test#main(kotlin.Array<kotlin.String>){} (0x46b949)
	Konan_start (0x46bbcd)
	Init_and_run_start (0xd97ceb)
	__libc_start_main (0x7f667af810b3)
	 (0x4063b1)
	 ((nil))

I made a simple sample project that demonstrates the issue.

I have a SampleClientImpl class that has a clientConfiguration property. An HttpClient is created and configured using the clientConfiguration property. When that happens, I get this crash:

$ samples/sample-native-osx/build/bin/macos/debugExecutable/sample-native-osx.kexe
Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen org.jraf.ktorhttpclientsample.internal.client.SampleClientImpl@ccf14ef8
    at 0   sample-native-osx.kexe              0x000000010aa4102f kfun:kotlin.Throwable#<init>(kotlin.String?){} + 95 (/Users/teamcity/buildAgent/work/f01984a9f5203417/runtime/src/main/kotlin/kotlin/Throwable.kt:23:37)
    at 1   sample-native-osx.kexe              0x000000010aa39c6d kfun:kotlin.Exception#<init>(kotlin.String?){} + 93 (/Users/teamcity/buildAgent/work/f01984a9f5203417/runtime/src/main/kotlin/kotlin/Exceptions.kt:23:44)
    at 2   sample-native-osx.kexe              0x000000010aa39e4d kfun:kotlin.RuntimeException#<init>(kotlin.String?){} + 93 (/Users/teamcity/buildAgent/work/f01984a9f5203417/runtime/src/main/kotlin/kotlin/Exceptions.kt:34:44)
    at 3   sample-native-osx.kexe              0x000000010aa6fefd kfun:kotlin.native.concurrent.InvalidMutabilityException#<init>(kotlin.String){} + 93 (/Users/teamcity/buildAgent/work/f01984a9f5203417/runtime/src/main/kotlin/kotlin/native/concurrent/Freezing.kt:22:60)
    at 4   sample-native-osx.kexe              0x000000010aa716bf ThrowInvalidMutabilityException + 431 (/Users/teamcity/buildAgent/work/f01984a9f5203417/runtime/src/main/kotlin/kotlin/native/concurrent/Internal.kt:92:11)
    at 5   sample-native-osx.kexe              0x000000010ab714d0 MutationCheck + 128
    at 6   sample-native-osx.kexe              0x000000010a9dc5d5 kfun:org.jraf.ktorhttpclientsample.internal.client.SampleClientImpl#<init>(org.jraf.ktorhttpclientsample.client.ClientConfiguration){} + 437 (/Users/bod/gitrepo/ktor-http-client-sample/library/src/commonMain/kotlin/org/jraf/ktorhttpclientsample/internal/client/SampleClientImpl.kt:52:30)
    at 7   sample-native-osx.kexe              0x000000010a9d9696 kfun:org.jraf.ktorhttpclientsample.client.SampleClient.Companion#newInstance(org.jraf.ktorhttpclientsample.client.ClientConfiguration){}org.jraf.ktorhttpclientsample.client.SampleClient + 214 (/Users/bod/gitrepo/ktor-http-client-sample/library/src/commonMain/kotlin/org/jraf/ktorhttpclientsample/client/SampleClient.kt:34:77)
    at 8   sample-native-osx.kexe              0x000000010a9e34c2 kfun:Sample#<init>(){} + 738 (/Users/bod/gitrepo/ktor-http-client-sample/samples/sample-native-osx/src/macosMain/kotlin/Sample.kt:40:22)
    at 9   sample-native-osx.kexe              0x000000010a9e422c kfun:#main(){} + 124 (/Users/bod/gitrepo/ktor-http-client-sample/samples/sample-native-osx/src/macosMain/kotlin/Sample.kt:72:14)
    at 10  sample-native-osx.kexe              0x000000010a9e4312 Konan_start + 146 (/Users/bod/gitrepo/ktor-http-client-sample/samples/sample-native-osx/src/macosMain/kotlin/Sample.kt:72:1)
    at 11  sample-native-osx.kexe              0x000000010a9ea48b Init_and_run_start + 107
    at 12  libdyld.dylib                       0x00007fff203a6621 start + 1
    at 13  ???                                 0x0000000000000001 0x0 + 1
Unfinished workers detected, 1 workers leaked!
Use `Platform.isMemoryLeakCheckerActive = false` to avoid this check.
Abort trap: 6

If, instead instead of being a property, clientConfiguration is made into an argument to the constructor (so, just removing private val from its declaration), this crash no longer happens.

internal class SampleClientImpl(
-     private val clientConfiguration: ClientConfiguration
+     clientConfiguration: ClientConfiguration
) : SampleClient {

I do not understand how reading a val can provoke a mutation attempt error?

Steps to reproduce:

1. git clone git@github.com:BoD/ktor-http-client-sample.git
2. cd ktor-http-client-sample
3. ./gradlew :sample-native-osx:build
4. samples/sample-native-osx/build/bin/macos/debugExecutable/sample-native-osx.kexe

The idea was to provide a shortcut function for simple one-time usage. For more configs/options (like default auth on every request) you should use the auth artifact instead.

Expected:

client.get<String>("google.com") {
  basic("username", "password") // shortcut for header(HttpHeaders.Authorization, "Basic ${"$username:$password".encodeBase64()}")

  bearer("token") //shortcut for header(HttpHeaders.Authorization, "Bearer ${token}")
}

So if I want to connect to a websocket it works as it should I can just use this:
socket = http.webSocketSession("some websocket I can connect to")
And won't block and just connects to the websocket.
But if I have a websocket were I might have a problem connecting to, this statement just blocks the coroutine and won't do anything
E.g. connecting to this websocket can never work and it just blocks, what the webSocketSession should never do:
socket = http.webSocketSession("wss://testabcde.com/ws")
It never throws an error or something. Using HttpTimeouts also doesn't help. Tested on okhttp and cio engines.
Does anyone have a solution for that? Using just http.webSocket works and throws an exception but thats not what I need.
Version is 2.0.0-beta-1 (I can only select eap on the affected versions)

The value of this field can be either an HTTP-date or an integer number of seconds (in decimal) after the time of the response.

   Retry-After  = "Retry-After" ":" ( HTTP-date | delta-seconds )

 Two examples of its use are

   Retry-After: Fri, 31 Dec 1999 23:59:59 GMT
   Retry-After: 120

In the latter example, the delay is 2 minutes.

See RFC 2616, section 14.37

Details could be found in the thread:
https://jetbrains.team/im/group/2kbClc4SKdaq?message=B4cWn0SBMxJ&channel=2kbClc4SKdaq

Related to KTOR-572 by @rustam.siniukov ...

In site operations, it is useful when you have retries to be able to see retry traffic from the server viewpoint, as well as control retry decisions. This helps in cases where retry logic is causing storms of traffic across many clients even with falloff.

What is needed is the retry plugin to allow:

• when "deciding to retry or not", the lambda answering this questions requires visibility of the try count AND the request/response instances (i.e. response may have a header saying DON'T retry, or the opposite with a Retry-After header). Looking at count, headers, error code are all important.
• when "deciding the delay of the retry", the lambda answering this question needs the retry count AND the request/response instances since it might respect Retry-After style headers (https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Retry-After). This applies to rate limiter headers (remaining, limit, reset, etc) as well. Also x-no-retry custom headers from the ops team blocking retries in an emergency at their edge firewall. Looking at count, headers, error code are all important.
• before a retry the opportunity to modify the request object in needed based on the retry count and the request/response instances. This allows setting ops headers such as x-retry-count: 5 which again allow edge control over retries. For example, in an outage recovery I might want to kill all retries with a count above 1, or any with a count at all to stop retries for a moment. The server needs to see evidence of the retry to do so, therefore modifying the headers is important.

The HttpRequestRetry is useful but incomplete as it takes into account what the client wants, but not what a server/ops might want and to cooperate.

The request here is for the hooks for the events with the correct data, not implementing the specific examples given. They vary wildly other than Retry-After which even browsers implement (https://stackoverflow.com/questions/3764075/retry-after-http-response-header-does-it-affect-anything).

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1970

https://github.com/ktorio/ktor/blob/3ce3906c2bfa3c86238d40e9b67006b2b020bdaf/ktor-client/ktor-client-core/common/src/io/ktor/client/request/forms/FormDataContent.kt#L43

I'd like to change this to internal so I can consume the boundary like so:

class MultiPartMixedDataContent(
        parts: List<PartData>
) : MultiPartFormDataContent {
    override val contentType: ContentType = ContentType.MultiPart.Mixed.withParameter("boundary", boundary)
}

The Ios engine uses NSURLSession from the Foundation framework, which can be used not only for iOS but for other operating systems, including macOS, tvOS, etc. This leads to confusion that the Ios engine can be used for iOS devices only. So it makes sense to rename the engine and artifacts to something more general, for example, Darwin or smth else.

Hi, I'm using Ktor 1.6.4 in a Kotlin Multiplatform project together with the Bearer Authentication feature.

We are logging the user out when the refresh of the token wasn't successful. Our Open ID Connect server responds with a 400 when the refresh token was used before for a refresh. So when there are multiple requests running in parallel the first refresh is successful but the other request already responds with a 401 and the Auth feature tries to refresh with the same refresh token this leads to a 400 error.

Is there something we can do to queue requests or is this the expected behaviour?

install(Auth) {
      bearer {
          loadTokens {
              val tokenData = getTokenDataInteractor.execute() // Get tokens from storage
              if (tokenData.status == SUCCESS && tokenData.data?.accessToken != null) {
                  BearerTokens(tokenData.data.accessToken, tokenData.data.refreshToken ?: "")
              } else {
                  null
              }
          }
          refreshTokens {
              val tokenData = refreshTokenInteractor.execute() // Fetches and stores new token
              if (tokenData.status == SUCCESS && tokenData.data?.accessToken != null) {
                  BearerTokens(tokenData.data.accessToken, tokenData.data.refreshToken ?: "")
              } else {
                  null
              }
          }
      }
  }

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1570

Subsystem
Client

Is your feature request related to a problem? Please describe.
I want to make http requests to XML API.

Describe the solution you'd like
Create ktor-client-xml like ktor-client-json to (de-) serialize request/response.

Motivation to include to ktor
XML very popular format for data transferring.

ProxyBuilder.socks sets up a Proxy of Proxy.Type.SOCKS, but the ProxyConfig.type is checking for Proxy.Type.DIRECT to set ProxyType to SOCKS.

Following tutorial from https://ktor.io/docs/proxy.html#platform-specific-configuration to setup with
a socks proxy (Tor embedded in Android Application running socks proxy on 127.0.0.1:9050) throws:
java.lang.IllegalStateException: Proxy of type UNKNOWN is unsupported by CIO engine.

Am I missing something?

Thanks!

Currently the default request plugin is applied AFTER the request builder.

val client = HttpClient {
  defaultRequest {
    header("Foo", "Bar") 
  }
}
client.get<String>("https://google.com") {
  header("Foo", "42")
}

Expected
header[Foo] == "42"

/**
 * Sets a single header of [key] with a specific [value] if the value is not null.
 */
public fun HttpRequestBuilder.header(key: String, value: Any?): Unit =
    value?.let { headers.append(key, it.toString()) } ?: Unit

The KDoc states that the header is set. This word usually signifies that the resulting value will be equal to the parameter, replacing existing value. But since the implementation appends the resulting value might not be what the caller expected.

The KDoc should be more explicit about what the function does. I can imagine even deprecating the current function name in favor of something more descriptive, such as appendHeader instead of just header

Add support for CBOR serialization format to unlock ktor client usage with CBOR servers.

Solution
Base solution on existing JSON format and implement new serializer module based on kotlinx-serialization-cbor (MPP). Note that due to trying to keep existing API surface unaffected, a lot of code duplication was introduced between JsonFeature and CborFeature. Implemented in #2610

Long term I'd recommend unifying various different serializatrion formats under a ContentNegotiation feature for the client (just like we have on the server). I'm happy to raise a PR for that if you'd accept breaking changes.

Currently, the exception contains only the URL, but the used method is helpful too to understand and find the cause.

Solution
Add the method to the exception

It seems like when using ktor client with the kotlinx serialization feature for JSON<=>Entity conversions the use of a generic for the payload is broken (might be related to #KTOR-744). A test project that shows this issue can be found here: https://github.com/fkrauthan/ktor-client-issue/blob/master/src/main/kotlin/main.kt

The problem by the looks of it is that within the JsonFeature it picks the serializer based on bodyInstance::class.serializer() which does not work for generics. The generic itself can be serialized without any issues when directly using kotlinx serialization.

Response types do not seem to have that issue.

The Ktor Client ResponseObserver interceptor is heavy, therefore it becomes tricky to avoid the overhead when one needs the interceptor just for a subset of requests. Since the interceptor is attached on the Client and not a single call, the only option one has currently is to use two different clients.

The filtering support for the client response interceptor would provide the possibility to enable the interceptor for certain requests only based on a request header or parameter or any other flag.

Currently, it is not possible to use the client itself inside the auth feature, so if you want to refresh the token you need to use another different client or declaring the current one as lateinit var

 val client = HttpClient() {
    install(Auth) {
        bearer {
            loadTokens { ... }
            refreshTokens { 
                // How can I do the request here with client itself?
                // Maybe the `this` in this lambda should be the client?
            }
        }
    }
}

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1695

Ktor Version and Engine Used (client or server and name)
Ktor Client Common 1.3.1, in browser (JS)

Describe the bug
request to /example requests http://localhost/example

To Reproduce
Steps to reproduce the behavior:

1. Clone https://github.com/Ribesg/Kita/tree/2c7941183ebcde1fc2193bd00a1bed53f1249b10 on a machine which can be reached from the network (a server)

   git clone https://github.com/Ribesg/Kita
   cd Kita
   git reset --hard 2c7941183ebcde1fc2193bd00a1bed53f1249b10
   

2. Run ./runServer.sh
3. Browse to https://yourserver:12345
4. Try to login using whatever credentials (correct ones are admin/admin)
5. See failing requests to https://localhost/api/auth/login instead of https://yourserver:12345/api/auth/login in the console

Expected behavior
Requests should use the current location.origin when none is provided in the browser

Currently in the HttpClient, when building a request, if you want to set the body to empty, you have to do body = EmptyContent.

Why not just have the body nullable?

This the current contract requires me to have special knowledge about how to use EmptyContent and do something like this:

CLIENT.request<String> {
    url(website.pollUrl)

    for (header in store.websiteExtractor.headers) {
        header(header.key, header.value)
    }

    body = extractor.body?.injectVariables(website.data) ?: EmptyContent
}

when this requires no special knowledge and is easier:

body = extractor.body?.injectVariables(website.data)

Using the new memory model with versions:

kotlinVersion=1.6.0
coroutinesVersion=1.5.1-new-mm-dev2
ktorVersion=1.6.2-native-mm-eap-196

Produces the following error when referencing ktor-network:

Module "io.ktor:ktor-network (io.ktor:ktor-network-iosarm64)" has a reference to symbol kotlinx.coroutines/SingleThreadDispatcher|null[0]. Neither the module itself nor its dependencies contain such declaration.

This could happen if the required dependency is missing in the project. Or if there is a dependency of "io.ktor:ktor-network (io.ktor:ktor-network-iosarm64)" that has a different version in the project than the version that "io.ktor:ktor-network (io.ktor:ktor-network-iosarm64): 1.6.2-native-mm-eap-196" was initially compiled with. Please check that the project configuration is correct and has consistent versions of all required dependencies.The list of "io.ktor:ktor-network (io.ktor:ktor-network-iosarm64): 1.6.2-native-mm-eap-196" dependencies that may lead to conflicts:
1. "io.ktor:ktor-io (io.ktor:ktor-io-iosarm64): 1.6.2-native-mm-eap-196" (was initially compiled with "io.ktor:ktor-io (io.ktor:ktor-io-iosarm64)")
2. "stdlib: 1.6.0" (was initially compiled with "stdlib: 1.5.30-RC")
3. "org.jetbrains.kotlin.native.platform.CoreFoundation: 1.6.0" (was initially compiled with "org.jetbrains.kotlin.native.platform.CoreFoundation: 1.5.30-RC")
4. "org.jetbrains.kotlin.native.platform.darwin: 1.6.0" (was initially compiled with "org.jetbrains.kotlin.native.platform.darwin: 1.5.30-RC")
5. "org.jetbrains.kotlin.native.platform.iconv: 1.6.0" (was initially compiled with "org.jetbrains.kotlin.native.platform.iconv: 1.5.30-RC")
6. "org.jetbrains.kotlin.native.platform.posix: 1.6.0" (was initially compiled with "org.jetbrains.kotlin.native.platform.posix: 1.5.30-RC")
7. "org.jetbrains.kotlinx:atomicfu (org.jetbrains.kotlinx:atomicfu-iosarm64): 0.17.0" (was initially compiled with "org.jetbrains.kotlinx:atomicfu (org.jetbrains.kotlinx:atomicfu-iosarm64): 0.16.1")
8. "org.jetbrains.kotlinx:kotlinx-coroutines-core (org.jetbrains.kotlinx:kotlinx-coroutines-core-iosarm64): 1.5.1-new-mm-dev2" (was initially compiled with "org.jetbrains.kotlinx:kotlinx-coroutines-core (org.jetbrains.kotlinx:kotlinx-coroutines-core-iosarm64): 1.5.1-new-mm-dev1")

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/412

Netty (I believe) already has support for this (https://netty.io/4.1/api/io/netty/channel/unix/package-summary.html) so this may already be possible with the existing engines with some tweaking or configuration.

Example server use case

Authoring a Docker plugin: https://docs.docker.com/engine/extend/plugin_api/ that runs locally. With jlink in Java 9 entire "native"-like services can be shipped.

Example client use case

Communicating with Docker engine which by default /var/run/docker.sock. For example, curl supports making requests to a UNIX socket:

curl --unix-socket /var/run/docker.sock http:/containers/json
[]

The basic idea is to have PipelineContext implementation, that is used when -ea flag enabled. This implementation should have no optimizations in preserve all stack traces.

Since https://github.com/ktorio/ktor/pull/2603 was merged the sockets no longer work on Android API level < 24. This PR migrated calls on socket() to StandardSocketOptions which is only available starting from Android API 24. This causes Ktor to crash.

Repro: https://github.com/Reproducers/ktor-serialization-repro

If I add a custom serializer to the Json, it doesn't work with Ktor, meanwhile, the same approach is working with Kotlin Serialization without Ktor.

serializersModule =
        SerializersModule {
            contextual(Either::class) { serializers: List<KSerializer<*>> ->
                EitherSerializer(serializers[0], serializers[1])
            }
        }

Additionally, looks like empty json responses are not working correctly too but they works with Kotlin Serialization: https://github.com/Kotlin/kotlinx.serialization/issues/1850#issuecomment-1025773267

The repro has three modules:

1. either which has the Either class and its custom serializer, the Either class must not be annotated as Serializable
2. without-ktor has a main function which prints multiple strings/objects after being serialized/deserialized with Kotlin Serialization.
3. with-ktor has a main function which should print the analogous data to the without-ktor but it crashes because there is no serializers in the contextual lambda.

Expected results:
Successfully able to write to ByteWriteChannel regardless of coroutine context dispatched in

Actual results:
When the coroutine context write is called in is backed by more than 1 thread (e.g. Dispatchers.IO) after a few writes this exception get's thrown.

Exception in thread "DefaultDispatcher-worker-1" java.lang.IllegalStateException: Writing is not available in state Writing
	at io.ktor.utils.io.internal.ReadWriteBufferState.startWriting$ktor_io(ReadWriteBufferState.kt:20)
	at io.ktor.utils.io.ByteBufferChannel.setupStateForWrite$ktor_io(ByteBufferChannel.kt:263)
	at io.ktor.utils.io.ByteBufferChannel.writeInt$suspendImpl(ByteBufferChannel.kt:2972)
	at io.ktor.utils.io.ByteBufferChannel.writeInt(ByteBufferChannel.kt)
	at EchoServer$process$1$1.invokeSuspend(EchoServer.kt:38)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)

MRE project attached, changing the number of threads in newFixedThreadPoolContext stops the error from happening, alternatively changing the delay from 500 to 100ms

Looks like a concurrency issue, it might be the expected behaviour however it's not documented anywhere I found/the error message isn't very descriptive, and it would also break in the default example in the docs

Related to https://youtrack.jetbrains.com/issue/KTOR-710 which is apparently not a kotlin-io bug https://github.com/Kotlin/kotlinx-io/issues/43
Possible duplicate of https://youtrack.jetbrains.com/issue/KTOR-3025

This code snippet is allowed, but leads to invalid configuration:

val client = HttpClient() {
    install(JsonFeature) {
        install(Auth) {
            // ...
        }
    }
}

It is stable with Kotlin 1.6.0

In the IntellijIdeaDebugDetector.kt class, present in the jvm sourceSet, the java.lang.management API is used. This API is not present in the versions of Java Android supports, which causes an ugly warning when depending on ktor-client-core, which has ktor-utils as a transitive dependency.

It seems ktor-utils does not have an android sourceSet, which would be required to deliver an actual implementation of the IntellijIdeaDebugDetector that uses an API supported by Android.

May be it's a good time to remove headerSizeHint in 2.0, as it not used at all?

If you write a simple hook in the following way:

val OnCallHook = object : Hook<() -> Unit> {
    override fun install(application: ApplicationCallPipeline, handler: () -> Unit) {
        application.intercept(ApplicationCallPipeline.Call) {
            handler()
        }
    }
}

And a simple routing-scoped plugin:

class MyConfig {
      var myValue: Int = 0 
  }

  val MyRoutePlugin = createRouteScopedPlugin("MyRoutePlugin", ::MyConfig) {
      on(OnCallHook) {
          println(pluginConfig.myValue)
      }
  }

Then, install this plugin into a couple of routes:

routing {
  route("/1") {
      install(MyRoutePlugin) {
          myValue = 1
      }
      get {
          call.respond("Hello-1")
      }
  }
  route("/2") {
      install(MyRoutePlugin) {
          myValue = 2
      }
      get {
          call.respond("Hello-2")
      }
  }
  get("/3") {
      call.respond("Hello-3")
  }
}

If you request /1 you'll get the following output:

1
2

(expected: only "1")

If you request /2 you'll get the following output:

1
2

(expected: only "2")

If you request /3 you'll get, again, the following output:

1
2

(expected: no output)

So, hooks don't respect installation into a single route independently

I don't know if this is intended behavior, but if you create a URLBuilder with a url that has a host part with a trailing slash, then call appendPathSegments on the builder, the resulting URL will have a double-slash between the host and the first path component. I dug around in URLBuilder.takeFromUnsafe, and this edge case is triggered by lines 99-102 there:

        val relativePath = when (slashCount) {
            1 -> listOf("")
            else -> emptyList()
        } + rawPath.split('/')

In the case of a trailing slash, this leaves relativePath == listOf("", ""), which is then assigned to URLBuilder.encodedPathSegments. I'm not familiar enough with all the use cases of this method to attempt a fix myself at this moment, and wanted to be sure this isn't intentional before doing anything else.

This can be reproduced by adding this test in io.ktor.tests.http.URLBuilderTest

    @Test
    fun fromStringWithTrailingSlashAppendsSinglePathSegment() {
        val url = URLBuilder("https://example.com/").appendPathSegments("foo")
        assertEquals("https://example.com/foo", url.buildString())
   }

which fails with:

Expected :https://example.com/foo
Actual   :https://example.com//foo

Edited to add:
This also happens if you create an URLBuilder from a URL created from a string, even without a trailing slash. Here's another test case:

    @Test
    fun fromUrlAppendsSinglePathSegment() {
        val url = URLBuilder(Url("https://example.com")).appendPathSegments("foo")
        assertEquals("https://example.com/foo", url.buildString())

which also fails with:

Expected :https://example.com/foo
Actual   :https://example.com//foo

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1137

Ktor application can't be compiled with JDK >=9. I'm getting a lot of such errors:

error: module kotlinx.io.jvm reads package io.ktor.http from both ktor.server.core and ktor.http.jvm
error: module kotlinx.io.jvm reads package io.ktor.http.content from both ktor.server.core and ktor.http.jvm
error: module kotlinx.io.jvm reads package io.ktor.util from both ktor.server.core and ktor.utils.jvm
error: module kotlinx.coroutines.jdk8 reads package io.ktor.http from both ktor.server.core and ktor.http.jvm
error: module kotlinx.coroutines.jdk8 reads package io.ktor.http.content from both ktor.server.core and ktor.http.jvm
error: module kotlinx.coroutines.jdk8 reads package io.ktor.util from both ktor.server.core and ktor.utils.jvm
error: module kotlinx.coroutines.core reads package io.ktor.http from both ktor.server.core and ktor.http.jvm
error: module kotlinx.coroutines.core reads package io.ktor.http.content from both ktor.server.core and ktor.http.jvm
error: module kotlinx.coroutines.core reads package io.ktor.util from both ktor.server.core and ktor.utils.jvm
...................

Support of Java 8 ends quite soon, so it makes sense to start supporting Jigsaw. IMHO, this should be prioritized, as it will require breaking backward compatibility. The less Ktor is popular, the easier would be to break backward compatibility. And Ktor will definitely become more popular over time.

Ktor Version

1.2.0

JVM Version, Operating System and Relevant Context

JDK 12

In StringValues.kt, the if statement should be inverted in appendIfNameAbsent() and appendIfNameAndValueAbsent():

public fun StringValuesBuilder.appendIfNameAbsent(name: String, value: String): StringValuesBuilder = apply {
    if (!contains(name)) return@apply
    append(name, value)
}

At present it appends only if it is present.

Ktor currently uses BEST_COMPRESSION for java.util.zip.Deflater when the feature Compression is enabled. It should use DEFAULT_COMPRESSION rather than BEST_COMPRESSION.

BEST_COMPRESSION is generally many times slower than DEFAULT_COMPRESSION for miniscule improvements to compressed size, making BEST_COMPRESSION almost always the wrong choice when compression time is part of the equation.

Fixing this would probably also partially fix KTOR-1341 (compression is still expensive, but significantly less so).

Ideally compression level should be configurable, since the optimal choice depends on expected network speed, CPU speed, and which implementation the JDK uses, but DEFAULT_COMPRESSION is a pretty good default.

To reproduce:

1. Run ./gradlew publishToMavenLocal in the root directory of the Ktor framework repository on the latest master. Use JDK 9+ for a build.
2. Use the 1.4.3-SNAPSHOT (at the time of writing) version of Ktor in a project with Maven local repository.
3. Build and run the following code with JDK 8:

suspend fun main(args: Array<String>) {
    val client = HttpClient(CIO)
    client.get<String>("http://example.com")
}

As the result unexpected exception will be thrown:

Exception in thread "main" java.lang.NoSuchMethodError: java.nio.ByteBuffer.limit(I)Ljava/nio/ByteBuffer;
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at io.ktor.utils.io.ExceptionUtilsJvmKt$createConstructor$$inlined$safeCtor$3.invoke(ExceptionUtilsJvm.kt:106)
	at io.ktor.utils.io.ExceptionUtilsJvmKt$createConstructor$$inlined$safeCtor$3.invoke(ExceptionUtilsJvm.kt)
	at io.ktor.utils.io.ExceptionUtilsJvmKt.tryCopyException(ExceptionUtilsJvm.kt:66)
	at io.ktor.utils.io.ByteBufferChannelKt.rethrowClosed(ByteBufferChannel.kt:2606)
	at io.ktor.utils.io.ByteBufferChannelKt.access$rethrowClosed(ByteBufferChannel.kt:1)
	at io.ktor.utils.io.ByteBufferChannel.setupStateForWrite$ktor_io(ByteBufferChannel.kt:211)
	at io.ktor.utils.io.ByteBufferChannel.copyDirect$ktor_io(ByteBufferChannel.kt:2758)
	at io.ktor.utils.io.ByteReadChannelJVMKt.copyTo(ByteReadChannelJVM.kt:276)
	at io.ktor.client.engine.cio.UtilsKt$withoutClosePropagation$2.invokeSuspend(utils.kt:173)
	at io.ktor.client.engine.cio.UtilsKt$withoutClosePropagation$2.invoke(utils.kt)
	at io.ktor.utils.io.CoroutinesKt$launchChannel$job$1.invokeSuspend(Coroutines.kt:129)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:738)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)
Caused by: java.lang.NoSuchMethodError: java.nio.ByteBuffer.limit(I)Ljava/nio/ByteBuffer;
	at io.ktor.utils.io.ByteBufferChannel.prepareBuffer(ByteBufferChannel.kt:193)
	at io.ktor.utils.io.ByteBufferChannel.setupStateForWrite$ktor_io(ByteBufferChannel.kt:242)
	at io.ktor.utils.io.ByteBufferChannel.copyDirect$ktor_io(ByteBufferChannel.kt:2758)
	at io.ktor.utils.io.ByteReadChannelJVMKt.copyTo(ByteReadChannelJVM.kt:276)
	at io.ktor.utils.io.ByteReadChannelKt.copyAndClose(ByteReadChannel.kt:267)
	at io.ktor.utils.io.ByteReadChannelKt.copyAndClose$default(ByteReadChannel.kt:266)
	at io.ktor.network.sockets.TimeoutExceptionsCommonKt$mapEngineExceptions$2.invokeSuspend(TimeoutExceptionsCommon.kt:61)
	at io.ktor.network.sockets.TimeoutExceptionsCommonKt$mapEngineExceptions$2.invoke(TimeoutExceptionsCommon.kt)
	... 7 more

You can find a similar issue here.

Detecting cycle in external variants for :
io.ktor:ktor-network:main-235:
  - io.ktor:ktor-http-cio-jvm:main-235:
      - io.ktor:ktor-http-cio:main-235:
          - io.ktor:ktor-server-host-common:main-235:
              - io.ktor:ktor-server-host-common-kotlinMultiplatform:main-235:
                  - io.ktor:ktor-server-netty:main-235: com.example:bcf:0.0.1
Dependency resolution has ignored the cycle to produce a result. It is recommended to resolve the cycle by upgrading one or more dependencies.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1833

Subsystem
Server

Is your feature request related to a problem? Please describe.
There is currently no way to build a Parameters instance from a Map, even though the internal representation of the values is a map. Parameters can only be constructed using:

• parametersOf()
• parametersOf(name: String, value: String)
• parametersOf(name: String, values: List<String>)
• parametersOf(vararg pairs: Pair<String, List<String>>)

ParametersImpl is internal and cannot be constructed directly.

Describe the solution you'd like
I'd like there to be a parametersOf(parameters: Map<String, List<String>>):

fun parametersOf(vararg parameters: Map<String, List<String>>): Parameters =
    ParametersImpl(parameters)

Motivation to include to ktor
Seems like it should be there. There are many cases where you're already working with a parameters map, and having to transform that into a list of pairs just to have it retransformed back under the hood seems wasteful.

For implementing a baseURL feature PR (KTOR-730, KTOR-759, KTOR-699), it is not possible to distinguish between the relative urlString/sub and the explicit, overriding the given baseURLString http://localhost/sub, because both different urlStrings resolves to the same URLBuilder (http://localhost/sub/).

Motivation:
Make all parameters of URLBuilder optional and move the default values into the build() function. This allows you inside the URLBuilder to decide, if the requested URL is only a relative URL or an explicit urlString.

// See [PR](https://github.com/ktorio/ktor/pull/2212) for `defaultRequest`
@Test 
@Ignore
fun overriddenLocalhostWithPath() {
    val localhost = HttpRequestBuilder().apply {
        url.takeFrom("http://localhost/sub")
    }.defaultRequest().build().url
    assertEquals("http://localhost/sub", localhost.toString())
}

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/429

https://github.com/ktorio/ktor/blob/7092c30706f34242419a5f0c81445dca06461dc3/ktor-http/src/io/ktor/http/URLUtils.kt#L28

should the query string from URI be considered encoded already and skip the decode and re-encode process?

The documentation for "Creating HTTP APIs" for Ktor has a section on "Automated Testing". As a part of the testing approach, it is suggested that a "testing = true" parameter needs to be added to the Application.module() function. However, a reason is not given as to why this is necessary to do.

Based on my experience, making changes to production code for the sake if testability is a code smell and should be avoided. Therefore, I tried to remove this "testing" parameter and so far as I can tell. it appears that the test still functions as expected.

Searching for other documentation regarding testing Ktor, the "Testing Overview" section illustrates the most basic of testing approaches and it doesn't appear as if adding a "testing" parameter is necessary.

I would be happy to make a PR on this part of the documentation to clarify, however before doing so I thought it would be best to confirm with the team:

• Was there a reason for adding the "testing" parameter? Is the code still able to be properly tested without this parameter?
• Given my lack of knowledge around Ktor and testing Ktor, are the other considerations with regards to testing that need to be taken into consideration for the documentation?

If the above points can be clarified I'd be happy to make a PR for this. Thank you!

link from DarwinClientEngineConfig is invalid

https://ktor.io/docs/eap/gradle.html
KTOR-3673

Hey guys,
We are in the middle of development using the 1.6.8 version of Ktor, and the docs have disappeared!

I created a sample project by following the documentation from https://github.com/ktorio/ktor-documentation/tree/main/codeSnippets/snippets/embedded-server-native
Here's are the sources https://github.com/antonarhipov/ktor-app

What I run ./gradlew runReleaseExecutableNative the result is a failure:

/Users/anton/tmp/ktor-app % ./gradlew runReleaseExecutableNative

> Configure project :
Kotlin Multiplatform Projects are an Alpha feature. See: https://kotlinlang.org/docs/reference/evolution/components-stability.html. To hide this message, add 'kotlin.mpp.stability.nowarn=true' to the Gradle properties.

The property 'kotlin.mpp.enableGranularSourceSetsMetadata=true' has no effect in this and future Kotlin versions, as Hierarchical Structures support is now enabled by default. It is safe to remove the property.

The property 'kotlin.native.enableDependencyPropagation=false' has no effect in this and future Kotlin versions, as Kotlin/Native dependency commonization is now enabled by default. It is safe to remove the property.


> Task :runReleaseExecutableNative FAILED
Uncaught Kotlin exception: kotlin.IllegalStateException: There is no event loop. Use runBlocking { ... } to start one.
    at 0   ktor-app.kexe                       0x108ff3304        kfun:kotlinx.coroutines.takeEventLoop#internal + 212 
    at 1   ktor-app.kexe                       0x108ff315c        kfun:kotlinx.coroutines.OldDefaultExecutor#dispatch(kotlin.coroutines.CoroutineContext;kotlinx.coroutines.Runnable){} + 76 
    at 2   ktor-app.kexe                       0x108fecf04        kfun:kotlinx.coroutines.internal#resumeCancellableWith__at__kotlin.coroutines.Continuation<0:0>(kotlin.Result<0:0>;kotlin.Function1<kotlin.Throwable,kotlin.Unit>?){0§<kotlin.Any?>} + 1124 
    at 3   ktor-app.kexe                       0x108ff0968        kfun:kotlinx.coroutines.intrinsics#startCoroutineCancellable$default__at__kotlin.coroutines.SuspendFunction1<0:0,0:1>(0:0;kotlin.coroutines.Continuation<0:1>;kotlin.Function1<kotlin.Throwable,kotlin.Unit>?;kotlin.Int){0§<kotlin.Any?>;1§<kotlin.Any?>} + 120 
    at 4   ktor-app.kexe                       0x108fd9560        kfun:kotlinx.coroutines#launch__at__kotlinx.coroutines.CoroutineScope(kotlin.coroutines.CoroutineContext;kotlinx.coroutines.CoroutineStart;kotlin.coroutines.SuspendFunction1<kotlinx.coroutines.CoroutineScope,kotlin.Unit>){}kotlinx.coroutines.Job + 560 
    at 5   ktor-app.kexe                       0x108fd96b3        kfun:kotlinx.coroutines#launch$default__at__kotlinx.coroutines.CoroutineScope(kotlin.coroutines.CoroutineContext?;kotlinx.coroutines.CoroutineStart?;kotlin.coroutines.SuspendFunction1<kotlinx.coroutines.CoroutineScope,kotlin.Unit>;kotlin.Int){}kotlinx.coroutines.Job + 243 
    at 6   ktor-app.kexe                       0x109078113        kfun:io.ktor.server.cio.CIO#create(io.ktor.server.engine.ApplicationEngineEnvironment;kotlin.Function1<io.ktor.server.cio.CIOApplicationEngine.Configuration,kotlin.Unit>){}io.ktor.server.cio.CIOApplicationEngine + 2483 
    at 7   ktor-app.kexe                       0x10906d01a        kfun:io.ktor.server.engine#embeddedServer__at__kotlinx.coroutines.CoroutineScope(io.ktor.server.engine.ApplicationEngineFactory<0:0,0:1>;kotlin.Array<out|io.ktor.server.engine.EngineConnectorConfig>...;kotlin.collections.List<kotlin.String>;kotlin.coroutines.CoroutineContext;kotlin.Function1<0:1,kotlin.Unit>;kotlin.Function1<io.ktor.server.application.Application,kotlin.Unit>){0§<io.ktor.server.engine.ApplicationEngine>;1§<io.ktor.server.engine.ApplicationEngine.Configuration>}0:0 + 634 
    at 8   ktor-app.kexe                       0x10906cc29        kfun:io.ktor.server.engine#embeddedServer__at__kotlinx.coroutines.CoroutineScope(io.ktor.server.engine.ApplicationEngineFactory<0:0,0:1>;kotlin.Int;kotlin.String;kotlin.collections.List<kotlin.String>;kotlin.coroutines.CoroutineContext;kotlin.Function1<0:1,kotlin.Unit>;kotlin.Function1<io.ktor.server.application.Application,kotlin.Unit>){0§<io.ktor.server.engine.ApplicationEngine>;1§<io.ktor.server.engine.ApplicationEngine.Configuration>}0:0 + 873 
    at 9   ktor-app.kexe                       0x1090a7934        Init_and_run_start + 740 
    at 10  ktor-app.kexe                       0x1090a7a3d        Konan_main + 13 
    at 11  libdyld.dylib                       0x7fff2044bf3c     start + 0 

FAILURE: Build failed with an exception.

https://ktor.io/docs/native-server.html#limitations

K/N server supports WebSockets

According to the documentation the JmxReporter should be included in the metrics-jmx dependency, but that doesn't appear to be the case in version 1.6.8. I had to manually add the dependency to "io.dropwizard.metrics:metrics-jmx:4.2.9" instead.

I'm trying to step through the "Creating a Client Application" tutorial, following this page:
https://ktor.io/docs/eap/getting-started-ktor-client.html#new-project

But my "IntelliJ IDEA Ultimate" IDE does not include the "JVM Application" option.

Please refer to the image attached. In the "New Project" windowm, under "Project Template", in the JVM section, it only lists "Console Application", but not the "JVM Application" option.

What can I do in this case?

Recently PR for #KTOR-325  has been pushed, and I'd like to have a test or an example in documentation how to use this new API as changing the contentType is what I'd like to have in my project (currently in my version (I had to copy the whole file into my project) it receives baseContentType with a restriction to match ContentType.MultipartAny without any parameters.

As evident from this slack thread, ktor-client docs for native desktop platforms are misleading. The docs should be explicit that they are referring only to desktop apps built with kotlin native. Additionally, it might also be worthwhile to review the language for jvm platform to indicate that client engines there can be used for jvm desktop apps as well, not just servers.

This also leads to false-positive issues like KTOR-3794

This might seem a bit of a petty issue to raise, but I've noticed that in the documentation, code snippets, and Gradle generated files, Prometheus is misspelled as Prometeus.

implementation("io.micrometer:micrometer-registry-prometheus:$prometeus_version")

Despite it being spelled as "prometheus" right next to it.

Annoying, but really annoying for some people.

Again, I appreciate it's a little petty, but help a guy with OCD out? :)

There is no description in the documentation of what type of logger is used on different platforms by default, particularly on JVM and POSIX.
The default logger for JVM (Logger.DEFAULT) is an slf4j logger that requires implementation, e.g Logback, and the default logger for POSIX (Logger.SIMPLE) is just a logger that prints everything to stdout.

This issue was imported from GitHub issue: https://github.com/ktorio/ktorio.github.io/issues/283

This page has CIO sockets sample but has no explicit ActorSelectorManager close.

https://ktor.io/servers/raw-sockets.html#simple-client-connecting-to-an-echo-server

It would be good to have some docs on how to deploy using TomCat, and also how to configure SSL and also to have app run off of sub-route (i.e. https://domain.com/my-app-route)

Simply defining staticBasePackage as stated in the documentation does not work. https://ktor.io/docs/eap/serving-static-content.html#default-resource-package

static("/") {
    staticBasePackage = "static"
}

(Changes proposed initially in the kotlin-hands-on repository, since the tutorial is now moved to https://ktor.io/docs/creating-http-apis.html, linking it here):

The section about how to create a mutable list and where it should be in the code was a little bit confusing
Changing the return HttpStatusCode of Post route to store customer. In that this, case it's more common to use 201 (Created) instead of 202 (Accepted)

https://github.com/kotlin-hands-on/hands-on/pull/120

Ktor fails to match the route GET /my/abc.json with the following routing configuration:

routing {
    route("/my") {
        route("/{id}") {
            get(".json") {

            }
        }
    }
}

For it to work it has to be collapsed to:

routing {
    route("/my") {
        get("/{id}.json") {

        }
    }
}

https://ktor.io/docs/eap/gradle.html

Right now documentation samples (here and here) don't mention authentication and encryption configuration of sessions which may result in insecure implementation if user doesn't already know importance of it and won't configure it on their own.

Unsigned/unencrlypted sessions are very insecure and some users may not be aware of it.

Also documentation and samples should not provide a sample of a key, and if a sample given then it should be blacklisted, so users won't be able to copy paste code snippet from documentation and reuse it, making the implementation insecure.

I noticed that on https://ktor.io/learn/ Server-Sent Events are referred as Server-Side Events. I guess that's a typo.

I came across Ktor looking for a HTTP client that could do streaming but in specific chunks. I found it to be insanely difficult to do using Netty, Spring WebClient, Reactor HttpClient etc. I was able to do it in Ktor comparatively easily but came across few issues:

1. Streaming is mentioned in the document almost as a joke, not to mention the shown code doesn't compile. https://ktor.io/clients/http-client/quick-start/streaming.html
2. There's no mention of the client Maven GAVs, anywhere, in the docs. After some digging around, I came across engines, and assumed that those correspond directly to the client libraries. This can be much clearly documented.
3. The API seems to be too keen on throwing exceptions. For instance, reading n bytes from a stream fails with an exception when the last chunk is < n bytes. Really?
4. I ended up with the following code, but it seems too much boilerplate that the library could easily do.

return flow {
    HttpClient(CIO).use {
        it.get<HttpStatement>(uri.scheme, uri.host, uri.port, uri.path).execute { response: HttpResponse ->
            val channel = response.receive<ByteReadChannel>()
            var bytesRead = 1
            while (bytesRead > 0) {
                val buffer = ByteBuffer.allocate(chunkSize)
                val packet = channel.readRemaining(buffer.capacity().toLong(), 1)
                bytesRead = packet.readAvailable(buffer)
                packet.release()
                if (bytesRead > 0) emit(buffer.flip())
            }
        }
    }
}

https://ktor.io/docs/docker.html#prepare-docker-image
The following line COPY ./build/install/docker/ /app/ from the Dockerfile is confusing because the name of a user's project could be and most likely will be different from docker.

Feedback from https://kotlinlang.slack.com/archives/C0A974TJ9/p1634659805496800 about sample from documentation article.

1. ./gradlew installDist has to be run manually before running docker which seems rather odd considering most use cases are deployment on the cloud.
2. Naming the project docker could be confused with running docker itself

Suggested improved Dockerfile:

FROM gradle:6-jdk8 AS build
COPY --chown=gradle:gradle . /home/gradle/src
WORKDIR /home/gradle/src
RUN gradle installDist --no-daemon

FROM openjdk:8-jdk
EXPOSE 8080:8080
RUN mkdir /app
COPY --from=build /home/gradle/src/build/install/docker/ /app/
WORKDIR /app/bin
CMD ["./docker"]

We default the wizard to use Kotlin for Gradle files. However, the code snippets from documentation all use Groovy, and it's inconsistent experience for someone starting a new project and then referring to documentation.

We have two solutions

1. Provide Groovy/Kotlin variants for everything
2. Convert all to Kotlin

The issue with the first option is the complexity of maintaining both build systems (and how we'd interact with these in the IDE). Let's discuss prior to resolving.

The native client engines documentation mentions two client engines (ios and curl).
Looking at the documentation it seems the ios implementation will only work for iOS targets, but it actually supports other Apple targets as well (like macOS).
In case of a macOS app you should probably prefer the ios implementation (using NSURLSession) over the curl one, right?
It would be great if the documentation could be a little more specific about which targets are support.

We need to describe a secure way of storing sensitive data, like credentials, and a way of accessing them in Ktor application.

https://stackoverflow.com/questions/69630762/where-to-save-sensitive-data-for-application-conf-in-ktor-application

https://helpserver.labs.jb.gg/help/ktor/2.0.0/client-retry.html#configure_retry

status() should be property not function. With latest 2.0 it does not compile.

Feature: HttpCache

We should update all docs and tutorials to reference Plugin. First reference of explaining plugins should reference the fact that a plugin was previously known as a Feature. If any URL has the word feature in it, a redirect should be put in place

Both plugin and website need to be updated.
Major changes are:

• Moving dependencies outside of ktor-server KTOR-1142
• Renaming features to plugins in code and package names KTOR-2370
• Moving all server code to io.ktor.server package KTOR-2865

We are getting more users and generator gets higher RPS rate which leads to memory usage growth.
We need to consider caching all internal requests to fit into our memory limits.

IntelliJ IDEA 2022.1 EAP (Ultimate Edition)
Build #IU-221.3635, built on January 24, 2022
Create new Ktor project with wizard, specify Maven as build system, add sample code :

{width=419px}

Add kotlinx.serialization plugin and create project.

Expected: All references in sample code are resolved correctly

Actual: References in sample code are unresolved because dependency for kotlin-maven-serialization unresolved

https://ktor-plugin.europe-north1-gke.intellij.net/migrations -- returns 500

From IDE it looks like after clicking migrate button, nothing happens and a failure message appears with a Try again button

I do believe I shouldn't get a transient dependency to logback from the testframework. The point of SLF4J after all is that you nor I should worry about which logging framework the other uses.

Please ensure that we don't get a possibly conflicting logging framework unexpectedly from your depencencies

Kotlin 1.6.0 uses JVM target 8 by default, and Ktor dropped support for JVM target 6 and 7. If you want to use JDK 11 for all! modules, the Kotlin compiler cannot inline jvm 8 target binary code into jvm 11 byte code.
So there is no need to define JVM target 8 explicit in 1 module.

=> Remove JVM target 8 in metrics micrometer

If you want to use the latest eap release of Ktor and use a library, which uses Ktor as api dependency, eg a Ktor plugin, Gradle don't use the main-buildNumber release over a published version.

Reason: 1.5.3 is preferred over main-133. The eap builds should use the version property with the prefix instead, eg 1.6.0-main-133. This tells Gradle to use the main eap version for all dependencies, because 1.6.0 > 1.5.4.

See the attached project
Run the test with/without removed line implementation(ratelimit) in build.gradle.kts.

If you want to build Ktor (main branch) on an Apple Arm, the build exits with: Resolving NPM dependencies using yarn' returns 139.
I don't know the exact reason, but it is resolved with the latest nodeJS version: 16.13.1.

Simple reproducer is attached.
nodeYarn.zip

Currently it is not possible to build and test Ktor (server and clients) on Apple Silicon with Xcode 13 and macOS 12. This release removes all x64 frameworks, so every hardcoded macosX64 target has to be replaced. This also applies to curl.

Currently, it shows Preview isn't available.

The plugin adds two dependencies for HTML DSL:

dependencies {
    implementation("org.jetbrains.kotlinx:kotlinx-html-jvm:0.7.3")
    implementation("io.ktor:ktor-server-html-builder:$ktor_version")
}

ktor-server-html-builder should be enough.

Steps to reproduce start following this tutorial.
The problem is that created project has not done import
import io.ktor.server.plugins.contentnegotiation.*

ktor plugin - 213.7172.25

IntelliJ IDEA 2021.3.3 (Ultimate Edition) Build #IU-213.7172.25

Hello,

it happens very often that when I program that the IDE goes to freeze and I have to force the closure.

This screen freezing happens when I write the routes on KTOR (an example attached).

In the attached example I mistakenly added a "d" and the IDE froze

Those few times it doesn't freeze the IDE doesn't find me errors or highlights correct code as incorrect.

Also the weird thing that it doesn't produce errors or crashes but I think the IDE can't calculate the help it usually gives me. The PC during freezing does not increase or decrease the load on the CPU and RAM. I have a MacBook Pro 16 with an i9 processor and os version Big Sur 11.4.

Migrations have known problems when it comes to MPP due to the lack of support of Kotlin MPP in IDE.
We must not show migration notification and/or perform migrations on MPP modules.

The main issue is that the current build tools API in IntelliJ (see DependencyModifierService) does not work properly with Kotlin MPP DSL in Gradle because this DSL is not supported.

If you run a migration for Ktor that tries to work with MPP dependencies in the same way as with a normal dependencies, it will just add a new outer block of dependencies { ... } in your build script. Instead, it must be adding dependencies inside macOs64 { dependencies { ... } } or other similar places for all relevant platforms

https://ktor.io/docs/call-id.html

Should be in the Monitoring group.

Currently, the plugin contains only the Sessions plugin. There is also a separate Session authentication provider: https://ktor.io/docs/session-auth.html

IU-221.4501.155, JRE 11.0.14+9-b1993.2x64 JetBrains s.r.o., OS Mac OS X(aarch64) v12.2.1, screens 5120.0x2880.0; Retina

Steps to reproduce the issue

• install language pack
• start IntelliJ IDEA
• create new Ktor project
• at plugin page, search "json"
• click "Add" for kotlinx.serialization

Expected

... プラグイン が追加されました

Actual:

... プラグインs が追加されました

Seems like "s" is added in a code for a message in English, to make "plugin" as "plugins"(plural), which is not appropriate for messages to be localized.

There were similar issues in IDE/bundled plugin and they were fixed already. Need a similar fix with Ktor (plugin?) as well.

{width=719px}

Nightly 2022.1

Currently, tests for endpoints may appear in any order in multi-test dialogs and in the created tests file itself. This is hardly testable and for larger projects the order of the tests might be a mess.

Instead of showing them in random order, we can sort them by URL/HTTP method and then they will look prettier and it will be easier to test them since the order is always the same and it does not depend on what we found first.

Actions:

1. Create a new Ktor project without changing anything in the wizard
2. Insert this code snipped into Routing.kt:

package com.example.plugins

import io.ktor.server.application.*
import io.ktor.server.routing.*

fun Application.configureRouting() {
    fun Routing.apple() {
        get("/apple") {}
    }

    routing {
        apple()
    }
}

3. Open Endpoints view

Expectations: You see this /apple endpoint
Reality: Endpoints view is empty and StackOverflowError happens

java.lang.StackOverflowError
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.awaitWithCheckCanceled(ProgressIndicatorUtils.java:359)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.awaitWithCheckCanceled(ProgressIndicatorUtils.java:354)
	at com.intellij.util.indexing.RegisteredIndexes.await(RegisteredIndexes.java:191)
	at com.intellij.util.indexing.RegisteredIndexes.waitUntilIndicesAreInitialized(RegisteredIndexes.java:91)
	at com.intellij.util.indexing.FileBasedIndexImpl.waitUntilIndicesAreInitialized(FileBasedIndexImpl.java:414)
	at com.intellij.util.indexing.events.ChangedFilesCollector.ensureUpToDate(ChangedFilesCollector.java:190)
	at com.intellij.util.indexing.FileBasedIndexImpl.ensureUpToDate(FileBasedIndexImpl.java:763)
	at com.intellij.psi.stubs.StubIndexEx.getContainingIds(StubIndexEx.java:352)
	at com.intellij.psi.stubs.StubIndexEx.processElements(StubIndexEx.java:158)
	at com.intellij.psi.stubs.StubIndex.getElements(StubIndex.java:99)
	at com.intellij.psi.stubs.StubIndex.getElements(StubIndex.java:87)
	at org.jetbrains.kotlin.idea.stubindex.KotlinMultifileClassPartIndex.get(KotlinMultifileClassPartIndex.kt:17)
	at org.jetbrains.kotlin.idea.stubindex.StaticFacadeIndexUtil$getMultifileClassForPart$1.invoke(StaticFacadeIndexUtil.kt:32)
	at org.jetbrains.kotlin.idea.stubindex.StaticFacadeIndexUtil$getMultifileClassForPart$1.invoke(StaticFacadeIndexUtil.kt:12)
	at org.jetbrains.kotlin.idea.util.application.ApplicationUtilsKt$sam$com_intellij_openapi_util_Computable$0.compute(ApplicationUtils.kt)
	at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:920)
	at org.jetbrains.kotlin.idea.util.application.ApplicationUtilsKt.runReadAction(ApplicationUtils.kt:20)
	at org.jetbrains.kotlin.idea.stubindex.StaticFacadeIndexUtil.getMultifileClassForPart(StaticFacadeIndexUtil.kt:31)
	at org.jetbrains.kotlin.idea.caches.resolve.IDEKotlinAsJavaSupport.findPackageParts(IDEKotlinAsJavaSupport.kt:195)
	at org.jetbrains.kotlin.idea.caches.resolve.IDEKotlinAsJavaSupport.getKotlinInternalClasses(IDEKotlinAsJavaSupport.kt:189)
	at org.jetbrains.kotlin.asJava.finder.JavaElementFinder.findClasses(JavaElementFinder.kt:49)
	at org.jetbrains.kotlin.asJava.LightClassUtil.findFileFacade(LightClassUtil.kt:179)
	at org.jetbrains.kotlin.asJava.LightClassUtil.getWrappingClass(LightClassUtil.kt:162)
	at org.jetbrains.kotlin.asJava.LightClassUtil.getWrappingClasses(LightClassUtil.kt:186)
	at org.jetbrains.kotlin.asJava.LightClassUtil.getPsiMethodWrappers(LightClassUtil.kt:136)
	at org.jetbrains.kotlin.asJava.LightClassUtil.getPsiMethodWrappers$default(LightClassUtil.kt:135)
	at org.jetbrains.kotlin.asJava.LightClassUtil.getPsiMethodWrapper(LightClassUtil.kt:132)
	at org.jetbrains.kotlin.asJava.LightClassUtil.getLightClassMethod(LightClassUtil.kt:113)
	at org.jetbrains.uast.kotlin.BaseKotlinConverter$DefaultImpls.convertDeclaration(BaseKotlinConverter.kt:158)
	at org.jetbrains.uast.kotlin.KotlinConverter.convertDeclaration(KotlinConverter.kt:11)
	at org.jetbrains.uast.kotlin.BaseKotlinConverter$DefaultImpls.convertDeclarationOrElement(BaseKotlinConverter.kt:224)
	at org.jetbrains.uast.kotlin.KotlinConverter.convertDeclarationOrElement(KotlinConverter.kt:11)
	at org.jetbrains.uast.kotlin.KotlinUastLanguagePlugin.convertElementWithParent(KotlinUastLanguagePlugin.kt:49)
	at org.jetbrains.uast.kotlin.KotlinConvertParentUtilsKt.convertParentImpl(kotlinConvertParentUtils.kt:154)
	at org.jetbrains.uast.kotlin.KotlinConvertParentUtilsKt.convertParentImpl(kotlinConvertParentUtils.kt:115)
	at org.jetbrains.uast.kotlin.BaseKotlinUastResolveProviderService$DefaultImpls.convertParent(BaseKotlinUastResolveProviderService.kt:22)
	at org.jetbrains.uast.kotlin.KotlinUastResolveProviderService$DefaultImpls.convertParent(KotlinUastResolveProviderService.kt)
	at org.jetbrains.uast.kotlin.internal.IdeaKotlinUastResolveProviderService.convertParent(IdeaKotlinUastResolveProviderService.kt:24)
	at org.jetbrains.uast.kotlin.KotlinAbstractUElement.convertParent(KotlinAbstractUElement.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.convertParent(KotlinUBlockExpression.kt:20)
	at org.jetbrains.uast.kotlin.KotlinAbstractUElement$uastParent$2.invoke(KotlinAbstractUElement.kt:25)
	at org.jetbrains.uast.kotlin.KotlinAbstractUElement$uastParent$2.invoke(KotlinAbstractUElement.kt:11)
	at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
	at org.jetbrains.uast.kotlin.KotlinAbstractUElement.getUastParent(KotlinAbstractUElement.kt)
	at org.jetbrains.uast.UElementKt$withContainingElements$1.get(UElement.kt:154)
	at kotlin.jvm.internal.PropertyReference1.invoke(PropertyReference1.java:35)
	at kotlin.sequences.GeneratorSequence$iterator$1.calcNext(Sequences.kt:591)
	at kotlin.sequences.GeneratorSequence$iterator$1.hasNext(Sequences.kt:609)
	at org.jetbrains.uast.UastContextKt.getUastParentOfType(UastContext.kt:230)
	at org.jetbrains.uast.UastContextKt.getUastParentOfType$default(UastContext.kt:176)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:110)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	...
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at io.ktor.ide.KtorRoutingVisitor.visitCallExpression(KtorUrlResolver.kt:111)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.ULambdaExpression$DefaultImpls.accept(ULambdaExpression.kt:41)
	at org.jetbrains.uast.kotlin.KotlinULambdaExpression.accept(KotlinULambdaExpression.kt:11)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:167)
	at io.ktor.ide.KtorServerEndpointsProviderKt$collectUrlMappingsInside$processor$1.invoke(KtorServerEndpointsProvider.kt:87)
	at io.ktor.ide.KtorServerEndpointsProviderKt$collectUrlMappingsInside$processor$1.invoke(KtorServerEndpointsProvider.kt:86)
	at io.ktor.ide.KtorRoutingCallsProcessor.visitCallExpression(KtorServerEndpointsProvider.kt:71)
	at org.jetbrains.uast.kotlin.KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:163)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UBlockExpression$DefaultImpls.accept(UBlockExpression.kt:21)
	at org.jetbrains.uast.kotlin.KotlinUBlockExpression.accept(KotlinUBlockExpression.kt:11)
	at org.jetbrains.uast.UMethod$DefaultImpls.accept(UMethod.kt:45)
	at org.jetbrains.uast.kotlin.KotlinUMethod.accept(KotlinUMethod.kt:18)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.kotlin.AbstractKotlinUClass.accept(AbstractKotlinUClass.kt:42)
	at org.jetbrains.uast.internal.ImplementationUtilsKt.acceptList(implementationUtils.kt:29)
	at org.jetbrains.uast.UFile$DefaultImpls.accept(UFile.kt:87)
	at org.jetbrains.uast.kotlin.KotlinUFile.accept(KotlinUFile.kt:14)
	at io.ktor.ide.KtorServerEndpointsProviderKt.collectUrlMappingsInside(KtorServerEndpointsProvider.kt:89)
	at io.ktor.ide.KtorServerEndpointsProviderKt.collectUrlMappingsInside$default(KtorServerEndpointsProvider.kt:83)
	at io.ktor.ide.KtorServerEndpointsProvider.getEndpoints(KtorServerEndpointsProvider.kt:46)
	at io.ktor.ide.KtorServerEndpointsProvider.getEndpoints(KtorServerEndpointsProvider.kt:22)
	at com.intellij.microservices.ui.flat.FlatEndpointGroup.getEndpoints(EndpointsCursor.kt:187)
	at com.intellij.microservices.ui.flat.EndpointsCursorKt.getProviderEndpoints(EndpointsCursor.kt:153)
	at com.intellij.microservices.ui.flat.EndpointsCursorKt.access$getProviderEndpoints(EndpointsCursor.kt:1)
	at com.intellij.microservices.ui.flat.EndpointsCursor$endpointsMap$1.fun(EndpointsCursor.kt:50)
	at com.intellij.microservices.ui.flat.EndpointsCursor$endpointsMap$1.fun(EndpointsCursor.kt:17)
	at com.intellij.util.containers.ConcurrentFactoryMap$2.create(ConcurrentFactoryMap.java:174)
	at com.intellij.util.containers.ConcurrentFactoryMap.get(ConcurrentFactoryMap.java:40)
	at java.base/java.util.concurrent.ConcurrentMap.getOrDefault(ConcurrentMap.java:88)
	at com.intellij.microservices.ui.flat.EndpointsCursor$request$allSequence$3.invoke(EndpointsCursor.kt:63)
	at com.intellij.microservices.ui.flat.EndpointsCursor$request$allSequence$3.invoke(EndpointsCursor.kt:17)
	at kotlin.sequences.FlatteningSequence$iterator$1.ensureItemIterator(Sequences.kt:315)
	at kotlin.sequences.FlatteningSequence$iterator$1.hasNext(Sequences.kt:303)
	at kotlin.sequences.DropWhileSequence$iterator$1.drop(Sequences.kt:529)
	at kotlin.sequences.DropWhileSequence$iterator$1.hasNext(Sequences.kt:556)
	at kotlin.sequences.TransformingSequence$iterator$1.hasNext(Sequences.kt:214)
	at kotlin.sequences.SequenceBuilderIterator.yieldAll(SequenceBuilder.kt:183)
	at kotlin.sequences.SequenceScope.yieldAll(SequenceBuilder.kt:100)
	at com.intellij.microservices.ui.flat.EndpointsCursor$request$2.invokeSuspend(EndpointsCursor.kt:79)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlin.sequences.SequenceBuilderIterator.hasNext(SequenceBuilder.kt:140)
	at kotlin.sequences.TakeSequence$iterator$1.hasNext(Sequences.kt:421)
	at kotlin.sequences.TransformingSequence$iterator$1.hasNext(Sequences.kt:214)
	at kotlin.sequences.SequencesKt___SequencesKt.toCollection(_Sequences.kt:786)
	at kotlin.sequences.SequencesKt___SequencesKt.toMutableList(_Sequences.kt:816)
	at kotlin.sequences.SequencesKt___SequencesKt.toList(_Sequences.kt:807)
	at com.intellij.microservices.ui.flat.EndpointsView$load$2.call(EndpointsView.kt:771)
	at com.intellij.microservices.ui.flat.EndpointsView$load$2.call(EndpointsView.kt:91)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.insideReadAction(NonBlockingReadActionImpl.java:531)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.lambda$attemptComputation$3(NonBlockingReadActionImpl.java:496)
	at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1152)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runInReadActionWithWriteActionPriority$0(ProgressIndicatorUtils.java:75)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runActionAndCancelBeforeWrite(ProgressIndicatorUtils.java:158)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runWithWriteActionPriority$1(ProgressIndicatorUtils.java:115)
	at com.intellij.openapi.progress.ProgressManager.lambda$runProcess$0(ProgressManager.java:57)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:188)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeProcessUnderProgress$12(CoreProgressManager.java:607)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:682)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:638)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:606)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:60)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:175)
	at com.intellij.openapi.progress.ProgressManager.runProcess(ProgressManager.java:57)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runWithWriteActionPriority(ProgressIndicatorUtils.java:112)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runInReadActionWithWriteActionPriority(ProgressIndicatorUtils.java:75)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.attemptComputation(NonBlockingReadActionImpl.java:496)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.lambda$transferToBgThread$1(NonBlockingReadActionImpl.java:408)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
	at java.base/java.lang.Thread.run(Thread.java:829)

Migrations are project-wide operations and they may affect the state of the project making it not compilable. This is a dangerous operation and it's recommended to add a bookmark in local history so that one may roll back to the state right before the migration.

We have quite a lot of features in Ktor plugin (https://youtrack.jetbrains.com/issue/KTOR-3407) and now we need to have some FUS (feature usage statistics) metrics for them.
Some options to consider:

• Refactoring/navigation invoked
• Test generated
• Migration time
• Run configuration computation time
• Ktor settings state (some features get disabled by user => we want to track that)
  etc.

Currently, the Create Test intention for a module suggests creating tests only for HTTP methods. It would be useful to have the capability to create WebSocket tests (see https://ktor.io/docs/websocket.html#testing).

P.S. Maybe it's worth waiting for a new testing API before adding this feature to the plugin.

Hello,

The default version when creating a ktor project with IDEA 2021.3.1 is 2.0.0-beta-1, but the last published version for ktor-locations is https://search.maven.org/artifact/io.ktor/ktor-locations/1.6.7/pom

This causes the first build to fail with the following error.

09:39:54: Executing ':classes'...

Starting Gradle Daemon...
Gradle Daemon started in 1 s 321 ms
> Task :compileKotlin FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileKotlin'.
> Error while evaluating property 'filteredArgumentsMap' of task ':compileKotlin'
   > Could not resolve all files for configuration ':compileClasspath'.
      > Could not find io.ktor:ktor-locations:2.0.0-beta-1.
        Searched in the following locations:
          - https://repo.maven.apache.org/maven2/io/ktor/ktor-locations/2.0.0-beta-1/ktor-locations-2.0.0-beta-1.pom
          - https://maven.pkg.jetbrains.space/public/p/ktor/eap/io/ktor/ktor-locations/2.0.0-beta-1/ktor-locations-2.0.0-beta-1.pom
        Required by:
            project :

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 14s
1 actionable task: 1 executed
09:40:12: Execution finished ':classes'.

Changes: https://github.com/ktorio/ktor/pull/2766

I would love that if this setting would be saved within the .idea directory, so it can be shared within git.

Routes inside of an authenticate() block aren't populated in the Endpoints view in IntelliJ Ultimate.

Currently testing with KTOR 1.6.3 and IntelliJ Ultimate 2012.2.2 (212.5284.40)

I'm attaching a sample application that demonstrates the issue. In the file Routing.kt :

fun Route.setupRoutes() {
    //authenticate("basic") {
        get("/") {
            call.respondText("Hello World!")
        }
    //}
}

With the authenticate("basic") call commented out, endpoints populate as expected. Remove the comments and endpoints vanish.

Currently, the plugin and start.ktor.io allow users to choose any version of Ktor starting from 1.4.0. Do we really need old versions, including 1.6.0-1.6.3? As an idea, we can show only the latest version and make the version chooser inactive. And in case we decide to introduce Beta, the version chooser will show two versions - the latest stable and beta.

Issues:

1. Some people work on multi-module projects in mono repositories and they don't want to migrate the whole project (this will disturb other teams when changing irrelevant modules)
2. We are always showing this notification once a new version arrives. There must be an option like "Don't show again"
3. We are suggesting EAPs and Betas as well as stable releases. There must be an option to select migration version levels.

It is impossible to disable the option

IntelliJ IDEA 2021.3 EAP (Ultimate Edition)
Build #IU-213.4622, built on October 5, 2021

Can we please update the description to the following:

Ktor is a web application framework for creating connected systems. You can use it to create server-side as well as client-side applications. It supports multiple platforms, including JVM, JavaScript, and Kotlin/Native. This plugin provides functionality in the IDE such as creating new projects, plugin configuration, navigation (including URL navigation), refactorings across client and server, migrations, and more!

Run Ktor app:

import io.ktor.application.*
import io.ktor.routing.*
import io.ktor.server.engine.*
import io.ktor.server.netty.*

fun main(args: Array<String>): Unit = EngineMain.main(args)

@Suppress("unused") // Referenced in application.conf
@JvmOverloads
fun Application.module(testing: Boolean = false) {
    embeddedServer(Netty, host = "127.0.0.1", port = 8000) {
        routing {
            get("/hello") {
                TODO()
            }
        }
    }.start(wait = true)
}

Open http://localhost:8080/app

Full stacktrace is shown while we can collapse some framework internal frames by default

For example, when I'm trying to find the HTML DSL feature, the wizard shows template engines first.

Steps to reproduce:

1. Open the codeSnippets Gradle project: https://github.com/ktorio/ktor-documentation/tree/main/codeSnippets#ktor-code-examples
2. Open the codeSnippets/snippets/upload-file/src/main/kotlin/com/example/UploadFile.kt file.
3. Place the caret at Application.main, press Alt+Enter and choose 'Create test for Ktor module'.
   EXP: Plugin creates only MainTest.kt.
   ACT: Plugin creates MainTest.kt and also changes 154 files from other modules (see a screen).

IntelliJ IDEA 2021.2.1 RC (Ultimate Edition)
Build #IU-212.5080.39, built on August 18, 2021
Ktor plugin version: bundled 212.5080.39

Not sure what "See feature's Github" is, but it keeps going to the same link. It's also incorrect. What is the purpose of this link?

1. Create a project with the HOCON file as described here: https://ktor.io/docs/intellij-idea.html.
2. Place the caret at module, press Alt+Enter, and choose Create test for Ktor module.
3. Click Create in the invoked dialog -> No tests are created

213.2899

after the project (just created micronaut gradle-based one) closing

com.intellij.serviceContainer.AlreadyDisposedException: Cannot create light service io.ktor.ide.plugins.add.KtorPluginsService because container is already disposed (container=Project(name=aaamkntestggg, containerState=DISPOSE_COMPLETED, componentStore=C:\Users\irina\IdeaProjects\aaa-mkn-test-ggg) (disposed))
	at com.intellij.serviceContainer.ContainerUtilKt.throwAlreadyDisposedError(containerUtil.kt:34)
	at com.intellij.serviceContainer.ComponentManagerImpl.checkThatCreatingOfLightServiceIsAllowed(ComponentManagerImpl.kt:669)
	at com.intellij.serviceContainer.ComponentManagerImpl.getOrCreateLightService(ComponentManagerImpl.kt:641)
	at com.intellij.serviceContainer.ComponentManagerImpl.doGetService(ComponentManagerImpl.kt:605)
	at com.intellij.serviceContainer.ComponentManagerImpl.getService(ComponentManagerImpl.kt:567)
	at com.intellij.openapi.client.ClientAwareComponentManager.getFromSelfOrCurrentSession(ClientAwareComponentManager.kt:37)
	at com.intellij.openapi.client.ClientAwareComponentManager.getService(ClientAwareComponentManager.kt:22)
	at io.ktor.ide.plugins.add.KtorMarketplacePluginsUpdater.checkForUpdates(KtorMarketplacePluginsUpdater.kt:16)
	at io.ktor.ide.plugins.add.KtorMarketplacePluginsUpdater.access$checkForUpdates(KtorMarketplacePluginsUpdater.kt:9)
	at io.ktor.ide.plugins.add.KtorMarketplacePluginsUpdater$runActivity$1.run(KtorMarketplacePluginsUpdater.kt:42)
	at com.intellij.ide.IdeEventQueue$MyFireIdleRequest.run(IdeEventQueue.java:1005)
	at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:240)
	at com.intellij.util.Alarm$Request.runSafely(Alarm.java:391)
	at com.intellij.util.Alarm$Request.run(Alarm.java:377)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at com.intellij.util.concurrency.SchedulingWrapper$MyScheduledFutureTask.run(SchedulingWrapper.java:220)
	at com.intellij.openapi.application.TransactionGuardImpl.runWithWritingAllowed(TransactionGuardImpl.java:214)
	at com.intellij.openapi.application.TransactionGuardImpl.access$200(TransactionGuardImpl.java:21)
	at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:196)
	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:797)
	at com.intellij.openapi.application.impl.ApplicationImpl.lambda$invokeLater$4(ApplicationImpl.java:350)
	at com.intellij.openapi.application.impl.FlushQueue.doRun(FlushQueue.java:84)
	at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:133)
	at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:46)
	at com.intellij.openapi.application.impl.FlushQueue$FlushNow.run(FlushQueue.java:189)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:776)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:727)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:746)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:891)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:760)
	at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$6(IdeEventQueue.java:447)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:825)
	at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$7(IdeEventQueue.java:446)
	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:797)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:492)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

Using the proguard configuration from the docs while using the CallLogging feature will make the JVM crash. This can be solved by adding a proguard rule class org.fusesource.jansi.** { public *; }.

When using directorySessionStorage or a custom implementation of SessionStorage, I noticed that every time after the read function is called, the write function is called which invalidates the cache, making the use of the cache completely pointless.

Expected behavior: After the read SessionStorage method is called, the write SessionStorage method is not called.
Actual behavior: After the read SessionStorage method is called, the write SessionStorage method is also called.

Steps for reproduce:

1. Compile and run the code from the snippet

2. Authorize by sending HTTP POST request to http://localhost:9090/authenticate sending body in format x-www-form-urlencoded with user:user password:password, any data are considered correct, should return HTTP Status Code 200

3. Make sure authorization was successful and sending HTTP GET request to http://localhost:9090/hello returns HTTP Status Code 200 and "Hello World!" string.

When sending subsequent HTTP GET requests to http://localhost:9090/hello, the file with information about the session, which will be written to the /tmp folder, will be overwritten each time. Also, in the debugger in the io.ktor.sessions.CacheStorage class, you can make sure that for each request the read method will be called and then the write method will be called.

Code to reproduce the issue:

import io.ktor.server.engine.*
import io.ktor.server.netty.*
import io.ktor.application.*
import io.ktor.auth.*
import io.ktor.http.*
import io.ktor.response.*
import io.ktor.routing.*
import io.ktor.sessions.*
import java.io.File

fun main() {
    embeddedServer(Netty, port = 9090, host = "0.0.0.0") {
        install(Authentication) {
            session<UserIdPrincipal>("auth-session") {
                validate { it }
                challenge { call.respond(HttpStatusCode.Unauthorized) }
            }

            form("auth-form") {
                validate { UserIdPrincipal(it.name) }
                challenge { call.respond(HttpStatusCode.Forbidden) }
            }
        }

        install(Sessions) {
            cookie<UserIdPrincipal>(
                "user_session",
                directorySessionStorage(File("/tmp"))
            )
        }

        routing {
            authenticate("auth-form") {
                post("/authenticate") {
                    val session = call.principal<UserIdPrincipal>()
                    call.sessions.set(session)
                    call.respond(HttpStatusCode.OK)
                }
            }
        }

        routing {
            authenticate("auth-session") {
                get("/hello") {
                    call.respondText("Hello World!")
                }
            }
        }

    }.start(wait = true)
}

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1002

Ktor Version

1.1.2

When trying to install ContentNegotiation inside additional (not main) module:

install(ContentNegotiation) {
        register(ContentType.Application.Xml, MyContentConverter()) {

        }
    }

I have this error:

Caused by: io.ktor.application.DuplicateApplicationFeatureException: Conflicting application feature is already installed with the same key as `ContentNegotiation`

however I would like that part of the routes could by default use different content negotiation.
some API require to have XML.

The per route can be defined with help of contentType:

routing {
        contentType(ContentType.Application.Xml){
            get("/myxml/api"){
                
            }
            
        }

Is there way to have that configured per module, how the ContentNegotiation happens?

That would help to have modules as separate dependencies to be reused on different Ktor applications.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1305

Ktor Version and Engine Used (client or server and name)
ktor-server-core 1.2.3

Describe the bug
The XForwardedHeaderSupport feature assigns the first entry in X-Forwarded-For to call.request.origin.remoteHost. However, typically the way that proxies work is that they accept arbitrary X-Forwarded-For values from clients and add their own IPs to the end of the list. So to properly figure out a client's IP address, one needs to know how many proxies one is behind, and count that far from the end of the list.

Now, to be fair, the docs on remoteHost say to not use it for user authentication. But if you do know how many proxies you are behind, it should be safe to use it for user authentication, by counting that many IPs from the end. So it would be good if you could do this easily!

So I guess I have two separate concerns:
(a) Today's behavior is surprisingly insecure, and though it's documented on RequestConnectionPoint it should be documented on https://ktor.io/servers/features/forward-headers.html

(b) Ideally you should be able to configure XForwardedHeader with something like

install(XForwardedHeaderSupport) {
  // Given `x-forwarded-for: GARBAGE1, GARBAGE2, REALCLIENTIP1, PROXY1` and request.local being the second proxy, this will get REALCLIENTIP1
  proxyCount = 2
}

ie, "behind one proxy" means the last IP address is correct, "behind two proxies" means the second-to-last, etc.

To Reproduce

• Run with XForwardedHeaderSupport behind some proxy, send a request with X-Forwarded-For: 123.123.123.123., see request.origin.remoteHost becomes 123.123.123.123.

Expected behavior
It should be possible to configure XForwardedHeaderSupport to reliably ascertain the remoteHost.

Happy to send in a PR, esp if people like the proposed variable name.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1414

Hi and thanks for this powerful library. In advance, apologies if I misunderstood some of the mechanics I describe here.

Currently, the CallLogging feature creates a "Logging" phase inserted before "Monitoring" and intercepts it to setup the MDC context for the rest of the pipeline with:

pipeline.intercept(loggingPhase) {
  withMDC {
    proceed()
    feature.logSuccess(call)
  }
}

This makes the MDC nicely available in all the sub-coroutines for reading. However any manual modification to the context in the rest of the pipeline is lost on suspension, making it effectively read-only.
From what I understand, this is expected and similar to the caveat described in the kotlinx documentation about ThreadLocal & coroutines

As a result, it very hard to add values to the MDC that are not trivially available during the Logging phase. In our use-case, these are:

• The id of the user making the request (it is computed during the authentication phase).
• The graphql operation requested by the user (it is computed in the routing phase as our graphql library parses the request).

I will try to find a hacky way to handle this for now, but it seems to me that the general use-case (of adding additional data to the MDC context later-on in the pipeline) is legitimate and it would be great to have "native" ktor support for it!

Hi, Under the load scenario we are testing in my team lately, Ktor is using way more memory than other libraries, like Kooby(Jooby).

jdk1.8.0_221

After 500 seconds of stress tests of the same 4 endpoints, check the memory and CPU usage:

Jooby 2.13.0:

Ktor:

Ktor implementation code:

server:

embeddedServer(
    Netty,
    host = ip,
    port = port,
    module = Application::module,
    configure = {
        requestQueueLimit = 8
        runningLimit = 5
        shareWorkGroup = true
        configureBootstrap = {
            group(NioEventLoopGroup(8, Executors.newCachedThreadPool()))
        }
    }
).start(wait = true)

features:

install(DefaultHeaders)
install(ContentNegotiation) {
    register(ContentType.Application.Json, JacksonConverter(JSON))
}

routes:

fun route(parentRoute: Route) {
    parentRoute.invoke {
        post("/games/{gameId}/validate") { call.respond(HttpStatusCode.MethodNotAllowed) }

        post("/games/{gameId}/play") {
            call.respond(HttpStatusCode.OK, "hola")
        }

        get("/games/{gameId}/config") {
            call.respond(HttpStatusCode.OK, "hola")
        }

        post("/games/{gameId}/checksum") {
            call.respond(HttpStatusCode.OK, "hola")
        }

        get("/games/{gameId}/version") {
            call.respond(HttpStatusCode.OK, "hola")
        }

        get("/games/{gameId}/initialize") {
            call.respond(HttpStatusCode.OK, "hola")
        }

        post("/games/{gameId}/evaluate/{objectiveId}") {
            call.respond(HttpStatusCode.OK, "hola")
        }
    }
}

As you can see, the endopints are quite simple.

The test:

We used Gatling to stress the servers, this is the code:

BasicSimulation.kt

Basically, 500 users per second peform 4 api calls.

Any further question, please let me know.

NettyEngine

2022-01-14 19:18:33.540 24057-24219/com.android.sidecar E/ktor.application: 26133 [eventLoopGroupProxy-4-2][DefaultUncaughtExceptionHandler.kt:handleException:30] - Unhandled exception caught for CoroutineName(call-handler)
    java.lang.NoClassDefFoundError: Failed resolution of: Ljava/lang/management/ManagementFactory;
        at io.ktor.util.debug.IntellijIdeaDebugDetector$isDebuggerConnected$2.invoke(IntellijIdeaDebugDetectorJvm.kt:14)
        at io.ktor.util.debug.IntellijIdeaDebugDetector$isDebuggerConnected$2.invoke(IntellijIdeaDebugDetectorJvm.kt:12)
        at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
        at io.ktor.util.debug.IntellijIdeaDebugDetector.isDebuggerConnected(IntellijIdeaDebugDetectorJvm.kt:12)
        at io.ktor.util.debug.ContextUtilsKt.addToContextInDebugMode(ContextUtils.kt:18)
        at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invokeSuspend(NettyApplicationCallHandler.kt:121)
        at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invoke(NettyApplicationCallHandler.kt)
        at io.ktor.server.netty.NettyApplicationCallHandler$handleRequest$1.invoke(NettyApplicationCallHandler.kt)
        at kotlinx.coroutines.intrinsics.UndispatchedKt.startCoroutineUndispatched(Undispatched.kt:55)
        at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:112)
        at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:126)
        at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:56)
        at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
        at io.ktor.server.netty.NettyApplicationCallHandler.handleRequest(NettyApplicationCallHandler.kt:41)
        at io.ktor.server.netty.NettyApplicationCallHandler.channelRead(NettyApplicationCallHandler.kt:33)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
        at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61)
        at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:370)
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:503)
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at io.ktor.server.netty.EventLoopGroupProxy$Companion.create$lambda-1$lambda-0(NettyApplicationEngine.kt:258)
        at io.ktor.server.netty.EventLoopGroupProxy$Companion.$r8$lambda$GV1s6RcVb-9HNgd1JsHck5tmF3c(NettyApplicationEngine.kt)
        at io.ktor.server.netty.EventLoopGroupProxy$Companion$$ExternalSyntheticLambda0.run(Unknown Source)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.lang.Thread.run(Thread.java:761)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "java.lang.management.ManagementFactory" on path: DexPathList[[zip file "/data/app/com.android.sidecar-2/base.apk"],nativeLibraryDirectories=[/data/app/com.android.sidecar-2/lib/arm, /system/lib, /vendor/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
    	... 28 common frames omitted

I have a HOCON config file that contains the field ktor.deployment.port. Expected behaviour is that the flag -port will override its value so I'll be able to access current server port using environment.config.property("ktor.deployment.port").getString(), but it doesn't work and will return the value from configuration file.

At the same time flag -P:ktor.deployment.port works fine.

In addition to support application/json: https://ktor.io/features/jackson.html

it takes couple of seconds to stop running app via CTRL+C

Hey there!

I am trying out the new Kotlin Native Memory Management on iOS with Kotlin 1.6.0-RC with Ktor Version 1.6.2-native-mm-eap-196 and coroutines version 1.5.1-new-mm-dev2.
Some requests work fine but sometimes I get the following error:

Caused by: kotlin.IllegalStateException: Fail to create response observer in different native thread.
    at 0                          0x0000000105dfb81c kfun:kotlin.Throwable#<init>(kotlin.String?){} + 96
    at 1                          0x0000000105df3660 kfun:kotlin.Exception#<init>(kotlin.String?){} + 92
    at 2                          0x0000000105df38b4 kfun:kotlin.RuntimeException#<init>(kotlin.String?){} + 92
    at 3                          0x0000000105df3c38 kfun:kotlin.IllegalStateException#<init>(kotlin.String?){} + 92
    at 4                          0x00000001061f52bc kfun:io.ktor.client.features.observer#wrapWithContent__at__io.ktor.client.call.HttpClientCall(io.ktor.utils.io.ByteReadChannel){}io.ktor.client.call.HttpClientCall + 280
    at 5                          0x00000001061d0374 kfun:io.ktor.client.features#withObservableDownload__at__io.ktor.client.call.HttpClientCall(kotlin.coroutines.SuspendFunction2<kotlin.Long,kotlin.Long,kotlin.Unit>){}io.ktor.client.call.HttpClientCall + 468
    at 6                          0x00000001061cf6b0 kfun:io.ktor.client.features.BodyProgress.$handle$lambda-1COROUTINE$209.invokeSuspend#internal + 1088
    at 7                          0x00000001061d011c kfun:io.ktor.client.features.BodyProgress.$handle$lambda-1COROUTINE$209.invoke#internal + 296
    at 8                          0x0000000106171b00 kfun:io.ktor.util.pipeline.SuspendFunctionGun.$loop$<anonymous>_2COROUTINE$256.invokeSuspend#internal + 476
    at 9                          0x000000010617204c kfun:io.ktor.util.pipeline.SuspendFunctionGun.$loop$<anonymous>_2COROUTINE$256.invoke#internal + 232
    at 10                         0x0000000106170480 kfun:io.ktor.util.pipeline.SuspendFunctionGun.loop#internal + 1044
    at 11                         0x000000010616fb28 kfun:io.ktor.util.pipeline.SuspendFunctionGun#proceed(){}1:0 + 364
    at 12                         0x000000010616fd30 kfun:io.ktor.util.pipeline.SuspendFunctionGun#proceedWith(1:0){}1:0 + 192
    at 13                         0x00000001062be67c kfun:io.ktor.client.features.logging.Logging.Companion.$install$lambda-1COROUTINE$187.invokeSuspend#internal + 1660
    at 14                         0x0000000105e1e480 kfun:kotlin.coroutines.native.internal.BaseContinuationImpl#resumeWith(kotlin.Result<kotlin.Any?>){} + 596
    at 15                         0x0000000105ff6ba4 kfun:kotlinx.coroutines.DispatchedTask#run(){} + 2772
    at 16                         0x0000000106023d34 kfun:kotlinx.coroutines.DarwinGlobalQueueDispatcher.dispatch$<anonymous>_3#internal + 128

I found out that the error disappears when I remove the ktor logging plugin from the client instance. I guess because then there is no ResponseObserver anymore that could cause this error. The logging plugin is from io.ktor:ktor-client-logging:1.6.2-native-mm-eap-196.

https://github.com/ktorio/ktor/pull/2145

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1163

Ktor Version

1.2.0

Ktor Engine Used(client or server and name)

Netty Server

JVM Version, Operating System and Relevant Context

11.0.2, Debian (docker)

4 Cores -Xmx2G (parallelism = 4)

Default settings

Feedback

For most of the cases performance is pretty good, we get < 50ms including db save (all done asynchronously). Unfortunately from time to time, we are getting requests which stuck for > 1s, in worst cases even > 20 seconds. Server got the request, but processing route wasn't invoked yet. In below there is part of NewRelic instrumentation stuck for such slow call, the problem is that Ktor is not yet well instrumented, and the only consecutive calls I see taking that time are below:

0 | 0.00% | Truncated: NettyUpstreamDispatcher |   | 0.000  s
-- | -- | -- | -- | --
0 | 0.00% | HttpServerExpectContinueHandler.channelRead() | Async | 0.000  s
0 | 0.00% | HttpServerExpectContinueHandler.channelRead() | Async | 0.000  s
0 | 0.00% | RequestBodyHandler.channelRead() | Async | 0.000  s
16.0 | 0.08% | NettyApplicationCallHandler.channelRead() | Async | 20.025  s
16.0 | 0.08% | NewRelicFeature.wrapIntoNewRelicTransaction() |   | 20.025  s
16.0 | 0.08% | com.revolut.eventstore.api.write.EventsControllerKt/saveEvent |   | 20.025  s
1.0 | 0.00% | Application code (in com.*.api.write.EventsControllerKt/saveEvent)

What I am trying to understand is - what could happen between:

0 | 0.00% | RequestBodyHandler.channelRead() | Async | 0.000  s
-- | -- | -- | -- | --
16.0 | 0.08% | NettyApplicationCallHandler.channelRead() | Async | 20.025  s

Why it took such long? It's pretty hard to understand where may be any blocking/under sourced part - so I would really appreciate help with it

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1825

Ktor Version and Engine Used (client or server and name)
ktor 1.3.2 (Netty)

Describe the bug
https://api.ktor.io/1.3.2/io.ktor.request/http-method.html states:

Returns request HTTP method possibly overridden via header X-Http-Method-Override

However it doesn't work. httpMethod() returns POST while headers[" X-Http-Method-Override"] returns GET.

To Reproduce
Execute POST request with X-Http-Method-Override: GET header.

Expected behavior
Returns 'GET' or documentation is not correct.

Screenshots

Is that correct that routing API also ignores X-Http-Method-Override or it's a bug ?

Ktor 1.6.4 runs on Android's 6.0 version device

ERROR ktor.application - Unhandled: GET - /

System.out: java.lang.NoClassDefFoundError: Failed resolution of: Ljava/nio/file/Paths;

System.out: at io.ktor.http.content.JarFileContent.<init>(JarFileContent.kt:27)

System.out: at io.ktor.http.content.StaticContentResolutionKt.resourceClasspathResource(StaticContentResolution.kt:62)

How to deal with this problem?

ContentNegotation plugin checks if the body was transformed and throws exception otherwise. There are two issues in it:

1. If another plugin that transforms body is installed after CN, it doesn't have a chance to run
2. If CN is not installed, no one checks body transformation

Checking of body should be done outside of CN after transforming(rendering) phase. This new plugin should be pre-installed.

This issue was imported from GitHub issue: https://github.com/ktorio/ktor/issues/1768

Subsystem
Server(/Client?):

• ktor-serialization
• ktor-websockets

Is your feature request related to a problem? Please describe.
Right now I don't see a good way to combine websockets with serialization.

Describe the solution you'd like
In http you can do it like this:

call.respond(SomeSerializableClass())

I'd propose something like this:

outgoing.send(
    Frame.Text.fromSerializable(SomeSerializableClass())
)

and

textFrame.toSerializable<SomeSerializableClass>()

Either in some kind of library or at least somewhere in the documentation.

Motivation to include to ktor
Currently there's not a really good way to communicate over websockets via JSON.

I've been trying to get a streaming response working for a while and I don't think it's currently possible to flush response headers before any byte is written when using the netty server engine. The exact same code works perfectly with cio.

The code looks something like this (I've tried using WriteChannelContent with 0-byte writes and explicit flushes as well):

route("/timed") {
    get {
        val byteStream = ByteChannel(autoFlush = true)
        launch(Dispatchers.Unconfined) {
            delay(5000)
            byteStream.writeFully(Charsets.UTF_8.encode("foo\n"))
            byteStream.close(null)
        }
        call.respond(object : OutgoingContent.ReadChannelContent() {
            override val status: HttpStatusCode? = HttpStatusCode.OK
            override val contentType: ContentType? = ContentType.Text.Plain
            override val headers: Headers = Headers.Empty
            override fun readFrom() = byteStream
        })
    }
}

I'm testing with curl -XGET localhost:8080/timed -v. When running the server with CIO this will immediately print the headers and then 5s later it'll print foo and close the response. With netty, this will wait for the full 5s before printing the whole response at once.

Writing multiple messages shows that this is only an issue with the initial header response. Streaming works fine with all messages after the initial byte.

In Spring Framework, its possible to return a Thymeleaf fragment. Is such feature also available in Ktor Thymeleaf Plugin?