I'm attempting to use the latest EAP

2.0.0-eap-132

for 1.5 support (and KT-46340), and it does not seem

ktor-serialization

is published. Is there a replacement? It's there up until

2.0.0-eap-106

.

Hi, Has anyone tried to run Ktor with embedded Jetty as an AppService in Azure? I'm able to get the app running (the logs says it started correctly), but I am unable to reach it. I am just getting a timeout. Not really sure if it's actually a Ktor-problem, but I tried to deploy the spring-boot example to the same app service, and that worked fine.

I guess this has been asked before but I'm at a bit of a loose end. I'm adding transaction support to my ktor application and currently have an implementation that works like this:

// All db calls in this block will be executed within a transaction, on a connection held in the coroutine context
transactional {
    ...
}

As it stands it requires a call to a static method on application startup to initialise a tx manager which the

transactional

call then uses to execute the tx. This is hard to test. I'd instead like to inject a transaction manager into a parent coroutine context so it's available everywhere in the app without needing to initialise it via a static method. I looked at using a feature that intercepts the application pipeline to do this but I don't think it does what I need. Any ideas?

Hi! I created a backend based on the Clean Architecture principles. Feedback would be very much appreciated! The application is separated into three modules: Domain, Usecases and Adapters • Domain module contains all entities, it's validation and repository interfaces • Usecases module performs actions on the domain entities and repositories and does authorization The domain and usecase modules do not have any external dependencies. • Adapter layer: each adapter is implemented as a standalone module, lowering dependence on specific frameworks and libraries and making them interchangable. The server module consumes all adapters (e.g. databases, (graphql) endpoints, authentication logic) GraphQL endpoints are auto-generated from the Usecases Used technologies: Ktor, JWT, Exposed, Flyway, KGraphQL/GraphQL generated endpoints. https://github.com/ESchouten/CleanArchitecture

hi, i have a little issue with Ktor HttpClient when receive Json response

io.ktor.client.call.NoTransformationFoundException: No transformation found: class io.ktor.utils.io.ByteBufferChannel -> class it.codingbunker.tbs.common.client.discord.model.DiscordOAuth2User

client setting

client.config {
            developmentMode = true
            install(Logging)
            defaultRequest {
                host + BASE_API_URL
                accept(ContentType.Application.Json)
            }
            install(JsonFeature) {
                serializer = KotlinxSerializer(
                    kotlinx.serialization.json.Json {
                        prettyPrint = true
                        isLenient = true
                        ignoreUnknownKeys = true
                    }
                )
            }
        }

and i receive correct headers

Hey i want to create a web application with ktor 1.5.4. But what JDK is the best? Can i use the Latest? Is kotlin 1.5.1 compatible or do I have to use the 1.4.3?

Did the API docs move, or is there an issue with the servers/publication of docs? I’m getting a 404 on https://api.ktor.io/

I have a Publication object and i’d like to insert a batch of them. Two options: 1. Insert only via the Entity

for loop
  Publication.new { ... }

2. Insert via entity table

Publication.table.batchInsert

1? 2? I’m not sure

https://blog.jetbrains.com/ktor/2021/05/28/ktor-1-6-0-released/ 🎉

Hi folks, 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@1657db08

and I have no idea where it can come from given the simplicity of this test. If anyone has any lead, it would be very helpful

Is there an equivalent of Retrofit.Builder class in Ktor? See https://square.github.io/retrofit/2.x/retrofit/retrofit2/Retrofit.Builder.html

Hello, is there any way or example to generate ktor client code (prefer KMM) from ktor server?

Does

withTestApplication

ignore authentication? It accesses an endpoint behind

authenticate()

without any specific setup

Has anyone successfully deployed a Ktor App that uses WebSockets to a WAR in Jetty Container? While making a simple example Web-App for Compose for Web I encountered this long standing, unresolved issue: • KTOR-184 Ktor tries to use

HttpServletRequest.upgrade()

which is not supported in Jetty ☠️ This appears to be a complete blocker for deploying WebSockets as a WAR in Jetty. Disturbing given that it's a very standard configuration for production usage 😱 Is anyone able to suggest a fix or workaround? Reproduction steps added to ticket.

Hello, This is my KMM Ktor client engine setup:

actual fun getHttpEngine(): HttpClientEngine = OkHttp.create {
        OkHttpConfig().also {
            addInterceptor(chuckerInterceptor)
            it.config {
                readTimeout(60, TimeUnit.SECONDS)
                connectTimeout(60, TimeUnit.SECONDS)
            }
        }
    }

but for some reason I’m receiving

failed with exception: io.ktor.network.sockets.SocketTimeoutException: Socket timeout has expired [url=..., socket_timeout=unknown] ms

after 10 seconds. Should I add this timeout settings in HttpClient? Thanks.

hi, anybody know why OkHttpEngine was marked as internal API? https://youtrack.jetbrains.com/issue/KTOR-2757

(X-Post from #server) Hey 👋 I'm developing a backend with Ktor, loving the framework so far! In some cases, I'll have to handle several (possibly large) responses from another backend, process them and forward them to my client. For now this is all rest, no web sockets. Is there anyway in Ktor to have a constant flow of responses to the client? Something like Spring WebFlux, I'd like to have a reactive flux of responses in Ktor. Have you ever implemented such thing with Ktor? Is it even possible as the framework stands today? Did you have success with any other framework? Thanks in advance 🙏

Hi all anyone here know of a library i can use to generate a pdf or excel in ktor that can be downloaded from the client side(web/mobile). i can't seem too find any

Hi, I’m stuck in adding interceptor and CertificatePinner in Default Engine of Ktor i.e.

HttpClient()

I came to know, that I can do it using HttpClient(OkHttp) engine, but in KMM project, I’m not allowed to add OkHttp dependency in shared/commonMain module. It’s saying

Failed building KotlinMPPGradleModel
org.gradle.internal.resolve.ArtifactNotFoundException: Could not find ktor-client-okhttp-1.6.0-samplessources.jar (io.ktor:ktor-client-okhttp:1.6.0).

//Something I’ve achieve yet.

var cert : CertificatePinner = CertificatePinner.Builder()
    .add(baseURL, "***************")
    .build()

val ktorHttpClient = HttpClient(OkHttp) {
    engine {
        config {
            certificatePinner(cert)
        }
    }

What I need

val ktorHttpClient = HttpClient() {

    engine {
        //ADD CERTIFICATE PINNER
        //ADD INTERCEPTOR
    }

Hi! What we have in the changelog for KTor 1.6.0 https://ktor.io/changelog/1.6/ regarding Client upload/download progress observer/handler/interceptor (https://youtrack.jetbrains.com/issue/KTOR-400)

I assume currently it exists but I don't know how to do it, can somebody help me please 🙂 ?

Also the following doesn't work (unresolved reference eventListener)

val retMessage =  httpClient.request<Message> {
            eventListener = { event ->
                println("${event.bytesSent / event.bytesTotal}% uploaded")
            }
        }

So is there any support for progress observer introduced in 1.6.0 or not?

Ok this one is really killing me now:

Could not resolve io.ktor:ktor-client-js:1.6.0

error every time at Gradle sync. But... • The project does build and run ✅ • The artifact name is correct • I've added

<https://repo1.maven.org/maven2/>

repo directly to the using project • The artifact is there • All other Ktor artifacts are resolving just fine. • I've cleared

build

and

~/.gradle

folders I am using

js(IR){...}

target, in case this has to do with resolving IR variant(?) ...nearly at a loss. Is anyone else seeing weird stuck artifact mis-resolution around Ktor?

Is it possible a feature/plugin depends on another?

class XmlConverter : ContentConverter {
  override suspend fun convertForReceive(context: PipelineContext<ApplicationReceiveRequest, ApplicationCall>): Any?  {
    val request = context.subject
    val channel = request.value as? ByteReadChannel ?: return null
    val inputStream = channel.toInputStream()
    val reader = inputStream.reader(context.call.request.contentCharset() ?: Charsets.UTF_8)
    val type = request.type
    return convertForReceive(type.javaObjectType, reader::readText)
  }
}

Does anyone know why the

.toInputStream()

throws this exception?

java.lang.IllegalStateException: Using blocking primitives on this dispatcher is not allowed. Consider using async channel instead or use blocking primitives in withContext(<http://Dispatchers.IO|Dispatchers.IO>) instead.
io.ktor.utils.io.jvm.javaio.BlockingKt.ensureParkingAllowed(Blocking.kt:302)
io.ktor.utils.io.jvm.javaio.BlockingKt.access$ensureParkingAllowed(Blocking.kt:1)
io.ktor.utils.io.jvm.javaio.InputAdapter.<init>(Blocking.kt:30)
io.ktor.utils.io.jvm.javaio.BlockingKt.toInputStream(Blocking.kt:20)
io.ktor.utils.io.jvm.javaio.BlockingKt.toInputStream$default(Blocking.kt:20)
com.apurebase.concur.server.XmlConverter.convertForReceive(XmlConverter.kt:28)

This happened after I upgraded from kotlin 1.3 and ktor 1.1.3 to the latest versions.

Hey, has anyone else noticed that start.ktor.io is down? Does anyone have any idea of when it will be back up?

This is on ktor 1.6.0, coroutines 1.5.0-native-mt and serialization 1.2.1, it was working perfectly with ktor 1.4.0 / coroutine 1.4.2-native-mt / serialization 1.0.0-RC The call is the following:

<http://httpClient.post|httpClient.post><LoginResponse> {
            url { encodedPath = LOGIN_WITH_INIT_URL }
            body = TokenGenerationInput(username, password)
        }

Any ideas on what's happening here?

Anyone aware how do I checkout

native-mt

version of Ktor? I don't find either the git tag or release for native-mt version of Ktor repo.

Did someone manage to use JWT with a Ktor client? The documentation doesn't even say if it's possible or not

does the CIO server work on multiplatform? I know the CIO client does

How important is it to close a ktor httpclient? Is it reasonable to have one kept around as a singleton that is never explicitly closed?