Hi everyone, while I develop something with ktor-client and JsonFeature enabled, I wonder is there any way to allow not only "application/json" but for more content types, like "application/x-json". For now, I forked JsonFeature to my project code and added newly defined content-type, and modified code a bit(attach the code fragments below).

// previous code, io.ktor.client.features.json.JsonFeature
// JsonFeature.Feature object, and install function
            scope.requestPipeline.intercept(HttpRequestPipeline.Transform) { payload ->

                context.accept(ContentType.Application.Json)
                if (context.contentType()?.match(ContentType.Application.Json) != true) {
                    return@intercept
                }

                context.headers.remove(HttpHeaders.ContentType)
                proceedWith(feature.serializer.write(payload))
            }

// forked code
// defined possible content types inside Feature object,
            private val allowedContentTypes = listOf(
            ContentType.Application.Json,
            ContentType.parse("application/x-json")
        )
            scope.requestPipeline.intercept(HttpRequestPipeline.Transform) { payload ->
                allowedContentTypes.forEach { context.accept(it) }

                if (allowedContentTypes.none { context.contentType()?.match(it) == true })
                    return@intercept

                context.headers.remove(HttpHeaders.ContentType)
                proceedWith(feature.serializer.write(payload))
            }

What would be the best framework to consume REST apis in Kotlin? I know ktor has a client as well, but I'm wondering if there are other alternatives which are even more tuned for API consumption.

Is there a version of Ktor available which is compatible with Kotlin 1.3.30-eap-45? I'm getting the following exception:

Exception in thread "main" java.lang.IllegalStateException: Could not find "/Users/thomas/.gradle/caches/modules-2/files-2.1/io.ktor/ktor-client-ios-iosx64/1.2.0-alpha-2/e8b5c84525df9fda3ad1e17b950fb2ebb65f4e9d/ktor-client-ios.klib" in [/Users/thomas/AndroidStudioProjects/MyProject/common, /Users/thomas/.konan/klib, /Users/thomas/.konan/kotlin-native-macos-1.2-eap-8554/klib/common, /Users/thomas/.konan/kotlin-native-macos-1.2-eap-8554/klib/platform/ios_x64].
	at org.jetbrains.kotlin.konan.library.KonanLibraryProperResolver.resolve(SearchPathResolver.kt:194)
	at org.jetbrains.kotlin.konan.library.SearchPathResolver$DefaultImpls.resolve$default(SearchPathResolver.kt:18)
	at org.jetbrains.kotlin.konan.library.resolver.impl.KonanLibraryResolverImpl$findLibraries$userProvidedLibraries$1.invoke(KonanLibraryResolverImpl.kt:49)
	at org.jetbrains.kotlin.konan.library.resolver.impl.KonanLibraryResolverImpl$findLibraries$userProvidedLibraries$1.invoke(KonanLibraryResolverImpl.kt:24)
	at kotlin.sequences.TransformingSequence$iterator$1.next(Sequences.kt:172)
	at kotlin.sequences.SequencesKt___SequencesKt.toCollection(_Sequences.kt:698)
	at kotlin.sequences.SequencesKt___SequencesKt.toMutableList(_Sequences.kt:728)
	at kotlin.sequences.SequencesKt___SequencesKt.toList(_Sequences.kt:719)
	at org.jetbrains.kotlin.konan.library.resolver.impl.KonanLibraryResolverImpl.findLibraries(KonanLibraryResolverImpl.kt:50)
	at org.jetbrains.kotlin.konan.library.resolver.impl.KonanLibraryResolverImpl.resolveWithDependencies(KonanLibraryResolverImpl.kt:32)
	at org.jetbrains.kotlin.cli.utilities.InteropCompilerKt.invokeInterop(InteropCompiler.kt:53)
	at org.jetbrains.kotlin.cli.utilities.MainKt.main(main.kt:18)

its also not mentioned in the gradle files so it automatically falls back to 1.6

Anyone give me ideas about implementing refresh counter with simple example?????

Which ktor version works in Kotlin 1.3.30-eap-xx?

Reposting this for visibility. Still have this problem. Should I create a GitHub issue? Any further debugging I can do before I do that?

Is it a known issue that with the current v1.1.3 the json artefacts are somehow broken because the kotlin serialization sub-dependencies can't be resolved:

really stupid question, but why is it called ktor? Because it 'caters' for your needs?

Hey guys, does anyone have an example on how to send a Post request to an url with a File parameter? I’ve tried with submitFormWithBinaryData. When a File is detected it gets the inputStream.asInput(). However the response that I’m getting is not what’s expected.. any ideas?

Hi folks, I think the docs at https://ktor.io/advanced/pipeline/route.html could get some better explanation on the whole interception of a route. reading the section:

How to intercept preventing additional executions

its not clear where that

intercept

function belongs to. Could someone care to explain how to add an interceptor to any route that could prevent the pipeline to continue (verifying a header)

Has there been any work/interest to get ktor to run on kotlin native?

Hello everyone. I have a question that could be potentially very silly. What is the best way to handle connection errors in a multiplatform project (Android and iOS), when I make a call with Ktor?

Hello everyone, does anyone know is there a well-known design pattern for this class

open class Pipeline<TSubject : Any, TContext : Any>(vararg phases: PipelinePhase)

? The way it's being used is just so fascinating so I hope to get some insights that I can apply it to my own projects.

Gotcha. UTF-8 shouldn't be using a BOM. Sure it's not saving in UTF-16? Anyway, one thing you could try just to get more data would be decoding the bytes into a String using a Reader, then having Jackson decode the string. It's unlikely, but there might be a bug in Jackson's native bytes -> UTF8 decoding?

Hi guys, I was wondering if there is a way to achieve the following : I have an HTTPClient that calls back-end REST services and tries to read the response as a particular type T. I have installed the ClientLogging feature and everything works as expected, unless the server returns an error, for example an authorization issue, the response cannot be read as T and and exception is thrown, leaving me with no logs. It's a bit hard to debug... As I understand, ClientLogging intercepts at

HttpReceivePipeline.Before

with a

ResponseObserver

and I don't really understand why my back-ends' logs aren't showing up. Anyone has a clue ?

When (accidentally) using the wrong username/password for

BasicAuth

in the

io.ktor:ktor-client-auth

plugin, the exception that gets thrown is a

SendCountExceedException

because the engine just tries sending again and again until the treshold is reached/surpassed. How can I change this behaviour so that upon encountering a

401

response code a more "proper" error (along the lines of "AuthenticationFailedException") is thrown?

I would like to download a big file using Ktor client and save it. I don’t know how to use

ByteReadChannel

. Is there an example code which writes contents to a file from

ByteReadChannel

? https://ktor.io/clients/http-client/calls/responses.html#HttpResponse

I see it's been asked before a few times with no answers, but I thought I'd check to see if anyone has managed to get transaction tracing with New Relic working with Ktor? Currently all transactions are being merged into a single

/NettyDispatcher

transaction, because the New Relic agent doesn't have built-in framework support for ktor.

Hi guys, I use an Client to make REST calls and I would like to store a value between the request and the response (the goal is to log the elapsed time). I don't really know where I can store this value so that it's available later from a

ResponseObserver

. Do you have any clue ?

Hey guys. I am looking for some best practices / tuts ,/ etc. for Ktor in combination with Kotlin exposed especially about using transactions in coroutines! Would appreciate any suggestions.

Not specifically about Ktor but we just released a plugin to convert HTML code to Kotlinx.html. It makes sense in a Ktor context. https://blog.data2viz.io/post/introducing-kotlinx.html-plugin/

When using Ktor behind a reverse proxy (via Træfik) and using https all my POST requests return instant 403 response. I have tried installed the

XForwardedHeaderSupport

module, without any luck. using HTTP works perfectly fine. anyone that knows why this is? or how I should go about debugging this?

Is it possible to customise caching for authentication? Would like to have caching cleared for basic authentication every time the server (via Netty) is started.

Is there any support for the

Flow<T>

preview available for the clients? If not, any suggestions on how it should be approached to integrate into the existing content transformation work?

What database framework/library are you guys using for ktor?

Is there a connector for the WSS (WebSocket Secure) protocol? Trying to setup a custom WSS session using a different host and port.

Hi guys, whenever I use

HttpRequestBuilder

and try to specify

ContentType(ContentType.Application.Json)

I get

Header Content-Type is controlled by the engine and cannot be set explicitly

. I’ve tried adding

defaultRequest { ContentType }

into the

HttpClient {  }

but I still get the same error. How would I go about setting the content type?

it probably needs to set cookies as part of that, which won’t work after a response is sent