Hi there, is there a way to make ktor on kotlin-native stop on sigterm? I already

addShutdownHook

as suggested for java:

applicationEngine.addShutdownHook {
        println("Shutdown hook received")
        println("Stopping engine")
        applicationEngine.stop(200, 500)
        println("Engine stopped")
    }
    applicationEngine.start(wait = true)

I would like to GET an XML document from a HTTP server where the content type is set erroneously to 'xml'.

HttpClient

throws

BadContentTypeFormatException

, is there any way to work around it?

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hey folks, I couldn’t find info about this in the docs, but I’m implementing an API that’s semi-async, i.e. the client can specify that if the request completes within a particular timeout, the server can respond synchronously (i.e. the response to the “submit” request contains the content), or if it’s going to take longer than that, the server should continue processing the request in the background and return an ID that the client can poll on later… 🧵

Hi guys, I was wondering whether it is possible to create a full yet simple website (Such as Blog or Portfolio) using Ktor? I mean, most of tutorial out there only highlight REST API and such... Can I use something like ORM or Templating Engine? Thanks!

Hello friends! I've observed that when I press ctrl+c to stop a ktor application from running it takes a little while until it stops.Do you know why? Is there a way to make it instant ? Also the same is true when I start/restart an application from intellij idea: I press the stop button and it takes some seconds until it really stops

I'm trying to configure a ktor application using the configuration file, as described here: https://ktor.io/docs/configurations.html#configuration-file ... I've put a file on my

src/main/resources/application.conf

and works great. However, to deploy the app I create a fat jar. Is there a way to override some configuration options when I deploy that fat jar ? I know that I can use env vars but there are too many options that would need overriding. is it possible to pass another configuration file to the fatjar that would be used to override configuration options ? i.e run it like

java -jar ktor-fat.jar -c local.conf

; when trying to read a configuration value, it will first check

local.conf

, if not found then go to

resources/application.conf

inside the jar

ciao! we stumbled upon an issue using Auth plugin and AWS API Gateway. Trying to summarize, when a request with an invalid token is performed towards a auth-protected Gateway endpoint, a 401 response is provided, along with the following www-authenticate header:

www-authenticate: Bearer scope="" error="invalid_token" error_description="token contains an invalid number of segments"

but according to the Auth parser, this header is malformed (see stacktrace below). In the end, this causes refresh tokens never to be requested. Can you confirm whether this issue is on the parser or on AWS? Thank you in advance Ktor and Auth plugin ver: 2.2.1

io.ktor.http.parsing.ParseException: Expected delimiter , at position 16, but found e
	at io.ktor.http.auth.HttpAuthHeaderKt.skipDelimiter(HttpAuthHeader.kt:441)
	at io.ktor.http.auth.HttpAuthHeaderKt.matchParameters(HttpAuthHeader.kt:141)
	at io.ktor.http.auth.HttpAuthHeaderKt.parseAuthorizationHeader(HttpAuthHeader.kt:106)
	at io.ktor.http.auth.HttpAuthHeaderKt.parseAuthorizationHeaders(HttpAuthHeader.kt:69)
	at io.ktor.client.plugins.auth.Auth$Plugin$install$2.invokeSuspend(Auth.kt:58)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.internal.DispatchedContinuation.resumeWith(DispatchedContinuation.kt:205)
	at io.ktor.util.pipeline.SuspendFunctionGun.resumeRootWith(SuspendFunctionGun.kt:135)
	at io.ktor.util.pipeline.SuspendFunctionGun.loop(SuspendFunctionGun.kt:109)
	at io.ktor.util.pipeline.SuspendFunctionGun.access$loop(SuspendFunctionGun.kt:11)
	at io.ktor.util.pipeline.SuspendFunctionGun$continuation$1.resumeWith(SuspendFunctionGun.kt:59)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at android.os.Handler.handleCallback(Handler.java:942)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loopOnce(Looper.java:201)
	at android.os.Looper.loop(Looper.java:288)
	at android.app.ActivityThread.main(ActivityThread.java:7872)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)

how to config KtorSimpleLoggerJs ?

Is there no way to differentiate between different verification failures/exceptions whe ktor's jwt authentication? The challenge function only receives the application call in the context, no exception/cause 😕 How is it possible to implement token refresh functionality when we cannot know whether the token verification failed only because of expiry and not some other verification issue?

Is there any reason to use netty instead of jetty when I don't need to use web sockets?

Guys, I'm trying to use Auto-reload, I've configured it and it works executing run and build task in two terminals, is there any way to run these two tasks as one?

Hey everyone. Is there a way to trust a self signed cert in KMM, using KTOR and its Darwin engine on the iOS side?

Hello, is there a way to rename default java process (java.exe -> myktorjava.exe) using

Gradle Application plugin

?

Hello! I started to use Ktor for server applications. I want to launch my application inside Docker. I created Dockerfile and filled it by this documentation. But when I execute command

docker build -t finance-tracker .

my build FREEZING on this line:

RUN gradle buildFatJar --no-daemon

If I execute

gradle buildFatJar --no-daemon

in local terminal, application successfully build. What do I need to do to fix it?

Hello I’m trying to deploy my ktor app to docker using below FROM gradle:7-jdk11 AS build COPY --chown=gradle:gradle . /home/gradle/src WORKDIR /home/gradle/src RUN gradle buildFatJar --no-daemon FROM openjdk:11 EXPOSE 7000:7000 RUN mkdir /app COPY --from=build /home/gradle/src/build/libs/*.jar /app/web-agent.jar ENTRYPOINT [“java”,“-jar”,“/app/web-agent.jar”]

Hello I’m trying to deploy my ktor app to

Docker

using this

Dockerfile

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I’ve got an endpoint that returns valid JSON with

Content-Type text/html; charset=UTF-8

. The response is as follows

{ "result": [ "foo", "bar" ] }

. When I try to serialize this into a POJO Ktor I get the following error:

No transformation found: class io.ktor.utils.io.ByteBufferChannel -> class FooList

This is most certainly about the wrong

Content-Type

, but in this case I cannot change the server

I’ve got an endpoint that returns valid JSON with

Content-Type text/html; charset=UTF-8

. The response is as follows

{ "result": [ "foo", "bar" ] }

. When I try to serialize this into a POJO Ktor I get the following error:

No transformation found: class io.ktor.utils.io.ByteBufferChannel -> class FooList

This is most certainly about the wrong

Content-Type

, as with valid

application/json

header everything works as expected. Unfortunately, I cannot change the server’s headers. Is there a workaround for this on client side? I tried with

accept(ContentType.Text.Plain)

as well as

accept(ContentType.Any)

but those don’t really help.

Greetings. We are trying to write some tests for

ktor

with

embeddedServer

using

mockk

library. And we are facing some problems with mocking objects. What is the best way to test

ktor

application? Assuming we need to mock some stuff that goes to third-party services? Any tough samples? Thanks.

Hello K friends, What if Node were more than just JS? To celebrate the new year, I am pleased to share a new project called Elide, a new server runtime, like Node or Deno, but polyglot, written in Kotlin and based on GraalVM. We are in alpha and very open to early feedback and contributions for anyone interested, over in #framework-elide 🥳 You can do wild things with it, like fast React SSR in Micronaut or Spring. Guest language support is starting with JS, but there are plans to integrate other languages like Python, Ruby, and Rust/Go/etc. via LLVM. Of course,

native-image

is supported out of the box. • 🚀 Trying it out

curl -sSL --tlsv1.2 dl.elide.dev/cli/install.sh | bash -s -

👆 the one liner works on Darwin (amd64/arm64), and Linux (amd64) so far.

If you prefer NPX:

npx @elide-dev/elide@alpha shell

K Building Kotlin apps with it • Elide can be used as a plain library with a regular Micronaut server, and Ktor support is on the way. There are Maven artifacts in a custom repository which is easy to use during the alpha; you can see a sample here. • G Gradle plugin You can easily install the Gradle plugin to build your frontend assets and your Kotlin/JS, and package it into your server binary. It will handle building for SSR and CSR both, so you can easily switch between browser rendering modes. Check it out here. Maven and Bazel support are planned. • 🖥️ Using the shell

elide shell

drops you into a shell just like Node (see attached screenshot), the difference being the

URL

class we're using here is implemented in Kotlin, backed by the road-tested power of Micronaut, KotlinX, Netty, and the Java standard library. It has simply been adapted for use in JavaScript, according to the WhatWG URL Spec. • js Use Kotlin/JS or regular Node stack Elide packages and consumes your JS/TS with built-in support for

esbuild

, so you can use a standard Node toolchain or the Kotlin/JS stack. • 💨 Super fast React SSR Because Elide is basically Kotlin with a super-fast JS runtime attached, it can do JS SSR without leaving the JVM. This can soon be drop-in compatible with many React apps. You can see a live sample here to confirm it is fast and server-rendered. The code for that sample is pasted below to show how simple it is to call back and forth between Kotlin and your React app:

@Page class Index : PageWithProps<YourProps>(YourProps.serializer()) {

    // Serve React SSR.
    @Get("/") suspend fun indexPage(request: HttpRequest<*>) = ssr(request) {    // 1: tell the server we're going to do SSR for this request
      head {
        title { +"Hello, Elide!" }
        stylesheet("/styles/base.css")
        stylesheet("/styles/main.css")
        script("/scripts/ui.js", defer = true)   // <-- 2: serve the CSR bundle so it can hydrate the react SSR response
      }
      body {
        injectSSR(this@Index, request)    // <-- 3: execute the JS VM to produce the SSR response, and splice it into the server response
      }
    }

}

• 🐙 Contributors needed The future of software is much more polyglot than today's paradigm: developers love to fight about frameworks, but at the end of the day, we're all writing code, and eliminating barriers between languages means easier collaboration and more value for all of us. It shouldn't be a Node vs. The World or a Rust vs. The World argument; we should get to pick and pull the best code we want from anywhere and use it to build our apps, especially from a multi-platform language like Kotlin. This runtime and framework are designed for that future. *If you agree, join us and make a dent in the universe*; you'll have a chance to be impactful and shape a brave new idea from the ground up. • 🙏 Thank you We chose Kotlin because of the fantastic community. 2023 will be a massive year for Kotlin, and we think that betting the farm on it is reasonable and smart. We are super excited about what JetBrains and Kotlin have in store for us with K2, context receivers, value classes... just so much to look forward to. Cheers and happy new year, Kotlin devs, K sam Posted in #feed

Hey all, i am using ktor-client with basic auth. depending on the situation, my backend needs to call the other rest endpoint with different users. is it possible to reuse the same http client and only provide the basic auth credentials on a call-by-call basis, instead of configuring it just once when creating the http client?

With ktor-server-resources is it possible to automatically make all marked classes with

Resource

serializable?

With ktor rate limiting is it possible to ignore rate limiting for authorized requests and public ones get rate limited?

Hello! I have a question regarding the

oauth

functionality for ktor. Instead of using a third party provider (like Google, Github,... ) I would like to have everything on my own server. Is there any tutorial or guide to follow to set everything up? Is this even possible, because I can't seem to find anything about this... 😅

Hi, I was wondering if there is a special reason why the

ResponseSent

and

ReceiveRequestBytes

hooks don't have suspending handlers? At least the latter is given a

ByteReadChannel

so suspending calls should be quite common?

hello all! On my previous

Spring

projects, I had a separate maven project, just with a openapi yaml file, which I called the spec, and generated a jar file that would later be used on the actual service project, that way, both backend and fronted used that as a contract and we would not have issues with mismatching urls and request/response properties. I used to generate all that from my openapi yaml file using the openapi generator maven plugin … I’m trying to achieve something similar for

ktor

but it seems impossible. I’ve tried many combinations of the settings for the plugin, but no luck. Is anyone doing something similar?

What does this mean?

TRACE i.k.s.p.c.ContentNegotiation - Skipping because the type is ignored.

I'm using

testApplication

with just the

ContentNegotiation

plugin using KotlinX.Serialization The test fails with

400 Bad Request with no provided body

, and Ktor seems to log that it decided to ignore the body for some reason?