kotlinlang #ktor

Hi again! I've implemented the ktor core client and works really nice with Android and iOS, but the idea is to reuse the common client also with JS, is there any way? Because looks like

io.ktor:ktor-client-json

doesn't exists for JS, so I can't build the JS module, the dataSource is here -> https://github.com/sergiocasero/votlin-app/blob/feature/network_calls_common_client/common/src/main/kotlin/com/votlin/client/data/datasource/remote/CommonRemoteDataSource.kt

Dias

10/18/2018, 1:10 PM

Hi, what is the reason for having this kind of structure for ktor samples, when you have resources folder at the top level along with src/? Compared to typical gradle project structure with resource inside of src/?

Dias

10/18/2018, 3:33 PM

is there a way to block using standard non-ssl ports in ktor using embeddedServer?

russhwolf

10/18/2018, 5:27 PM

I'm still having trouble getting the ktor ios client to work with the

kotlin-multiplatform

gradle plugin. None of the ktor or coroutine dependencies resolve on the ios side when I build (

./gradlew clean build test

). I pushed a github repo of a minimal demo of what I'm trying to do, based on a fresh project with the IDEA "Kotlin (Mobile Android/iOS)" template. Here's the relevant commit: https://github.com/russhwolf/ktor-demo/commit/dfee772bfdc4fb97e6e84938780bd95b5589e0e6

russhwolf

10/18/2018, 9:09 PM

Ok new question. I gave up on tests and am trying to make calls in-app, copying the ios dispatcher from the client-mpp sample. However when I try to build my common code I get an error

Joris PZ

10/19/2018, 1:10 PM

I am working on a project involving multicast UDP. As far as I can tell, from the documentation and by looking through the ktor code (in particular

UDPSocketBuilder

) , there seems to be no way to create a Multicast socket in ktor. Is that correct? And if so, does anyone know if it's on a roadmap?

Alex

10/19/2018, 3:12 PM

Is there a simple way to handle a post request validation in ktor?

enleur

10/19/2018, 6:07 PM

is ktor supported on jdk 11? UPD found https://www.reddit.com/r/Kotlin/comments/90cqno/any_news_on_java_11_support/

coletz

10/19/2018, 7:13 PM

Is there any documentation for ktor-client-json? I'm not even sure what it is :s

Hamza

10/20/2018, 4:03 AM

Hi, I’m trying to use ktor multiplatform (jvm server and js client). I’m trying to get it to run with an application.conf but im running into a few issues. the application.conf is located at jvmMain/resources/application.conf, but i get an exception whenever I try to run it via `io.ktor.server.netty.DevelopmentEngine`:

-.java

10/21/2018, 1:36 AM

are you trying to do CORS or what?

dave08

10/21/2018, 12:25 PM

Is the response body read async, even with the OkHttp engine (I'm currently interested in downloads) @orangy? How stable is CIO?

samir

10/21/2018, 5:24 PM

Hey guys, I just migrated to Ktor

1.0.0-beta-1

and now all my usages of

ApplicationConfig

are generating warnings saying usage should be marked with

KtorExperimentalAPI

. What is the reason for this change ? Is there another way to use

ApplicationConfig

now ?

Sergio Casero

10/21/2018, 9:29 PM

Hello guys! I don't where to put this issue... I'm trying to build my native module from a mpp project, but I'm getting this error:

<--------Parallel execution is an incubating feature.

> Task :ios:compileDebugIos_arm64KotlinNative FAILED
Undefined symbols for architecture arm64:
  "_kfun:io.ktor.client.engine.ios.IosClient()io.ktor.client.engine.HttpClientEngineFactory<io.ktor.client.engine.HttpClientEngineConfig>", referenced from:
      _kfun:io.ktor.client.HttpClient(kotlin.Function1<io.ktor.client.HttpClientConfig<#STAR>,kotlin.Unit>)io.ktor.client.HttpClient in combined.o
  "_kfun:kotlinx.coroutines.CoroutineScope.<get-isActive>()ValueType", referenced from:
      _kmethods:io.ktor.util.pipeline.PipelineContext in combined.o
      _kmethods:io.ktor.client.call.HttpClientCall in combined.o
      _kmethods:io.ktor.client.HttpClient in combined.o
ld: symbol(s) not found for architecture arm64
error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld invocation reported errors

FAILURE: Build failed with an exception.

Looks like it can't find the ktor client methods, no? The coroutines version is 1.0.0-RC1, and ktor client is 1.0.0-beta1. Android and JS works fine

enleur

10/22/2018, 11:49 AM

is it possible to use DefaultDispatcher's pool as netty worker pool to avoid context switches? Not sure if it's a big deal anyway, but still?

legzo

10/22/2018, 1:46 PM

I stumbled upon Fuel this morning, didn't really like the "callbacky" syntax. But the project seems alive... I did not want to lose some time trying to make Ktor's client work outside of a server usecase but if you say it is usable, I think I'll go this way

Dias

10/22/2018, 1:57 PM

gentle boop 🙂 https://kotlinlang.slack.com/archives/C0A974TJ9/p1540210988000100

legzo

10/22/2018, 2:56 PM

I managed to use Ktor's HttpClient (Apache) But when I try to call an HTTPs resource with a corporate certificate, it fails (logically). The question is : how can I provide HttpClient my custom trustStore ?

coletz

10/22/2018, 3:54 PM

How to set contentType to applicaton/json with ktor client? I tried both

headers[HttpHeaders.ContentType] = ContentType.Application.Json.toString()

and

contentType(ContentType.Application.Json)

but I get an exception:

io.ktor.http.UnsafeHeaderException: Header Content-Type is controlled by the engine and cannot be set explicitly

. How to set it with the engine? Considering I'm using ios so I'm not sure I can use ktor-client-json

📝 1

✅ 1

bootstraponline

10/22/2018, 5:34 PM

is ktor 1.0.0-beta-1 not compatible with kotlin 1.3.0-rc-190 and coroutines 1.0.0-RC1?

-.java

oshai

10/22/2018, 9:38 PM

If you want async driver you can try what I am working on: https://github.com/jasync-sql/jasync-sql

🎉 2

NGupta

10/23/2018, 9:52 AM

Hi, I am new to this channel, have a very basic question if anyone could help. I plan to create a generic route for all my GET requests which would allow requests like http://localhost:8080/a http://localhost:8080/a/b http://localhost:8080/a/b/c/././././ As of now I have 3 levels of hierarchy and I am handling it like this: routing { get("/*") { //logic } get("/(STAR HERE)/*") { //logic } get("/(* HERE)/(STAR HERE) /*") { //logic } } I have something similar for posts, and the hierarchies are expected to grow. Thank you.

kiffin

10/23/2018, 9:58 AM

See unresolved references in the screenshot

kiffin

10/23/2018, 9:59 AM

Tried with maven, gradle, ktor 0.94, 0.95 and 1.00-alpha but to no avail.

kiffin

10/23/2018, 10:01 AM

Do you mean running

mvn build

coletz

10/23/2018, 10:52 AM

is there any way to set request/read/write timeout with ktor client for ios?

rocketraman

10/23/2018, 5:43 PM

It seems ktor 1-alpha has a binary incompatibility with coroutines 1.0.0-RC1?

java.lang.NoSuchMethodError: kotlinx.coroutines.ExecutorsKt.asCoroutineDispatcher(Ljava/util/concurrent/ExecutorService;)Lkotlinx/coroutines/ExecutorCoroutineDispatcher

➕ 2

Sergio Casero

10/23/2018, 5:49 PM

Hello! Is there any way to debug the ktor client calls?

👍 1

spierce7

10/23/2018, 7:22 PM

I'm seeing some problems when running the latest ktor on proguard. Anyone know the proper proguard for ktor?

patjackson52

10/24/2018, 2:00 PM

Any pointers on how to kotlin.serialize with HttpClient to deserialize json with lists as root? I’m using: HttpClient { install(JsonFeature) { serializer = KotlinxSerializer().apply { setMapper(MyClass::class, MyClass.serializer()) setMapper(AnotherClass::class, AnotherClass.serializer()) } } install(ExpectSuccess) } Appears I need to setMapper for List<MyClass>, however that is not possible with generics. I see I can get the serializer for it with MyClass.serialzer().list, but registering it to deseriralize/serialize on http requests is not straight forward. Anyone know of a good solution? https://stackoverflow.com/questions/52971069/ktor-serialize-deserialize-json-with-list-as-root-in-multiplatform

Title

patjackson52

10/24/2018, 2:00 PM

Marcel Kesselring

10/24/2018, 2:04 PM

Last time I used kotlinx.serialization it wasn't possible to deserialize maps/lists on kotlin/js and I had to wrap every payload. Maybe that is still the case?

Nikky

10/24/2018, 2:06 PM

there should be a option to specify the serializer used at the callsite, at least in Fuel there is i have not used ktor-client for a while

patjackson52

10/24/2018, 2:06 PM

Interesting. I’m not targeting JS for this project though.

Jonas Bark

10/24/2018, 2:12 PM

right now it's not possible with KotlinxSerializer due to missing generic information. I had the same question - I'll search for the answer

Nikky

10/24/2018, 2:13 PM

i had hoped they made use of this in ktor: https://github.com/Kotlin/kotlinx.serialization/blob/master/runtime/jvm/src/main/kotlin/kotlinx/serialization/Resolving.kt#L59

i think you can make your own kotlinxserializer for ktor using this function, it will work for anything receiving at least since you have a typetoken there

Jonas Bark

10/24/2018, 2:14 PM

https://kotlinlang.slack.com/archives/C7A1U5PTM/p1539109136000100

Nikky

10/24/2018, 2:15 PM

last time i tried to do that for a outgoing jsonBody the pipeline did not have any typetoken

Jonas Bark

10/24/2018, 2:18 PM

@Nikky I think you mean TypeInfo - unfortunately the generic type is erased at runtime (see my link) so that won't help you in this case

patjackson52

10/24/2018, 2:18 PM

Right, I don’t think we have type of the generic. I may be able to get something working in my case, but a generic solution doesn’t seem possible currently

Nikky

10/24/2018, 2:20 PM

and there is a trick ktor uses to keep it in the pipeline https://github.com/ktorio/ktor/blob/master/ktor-client/ktor-client-core/ktor-client-core-jvm/src/io/ktor/client/call/TypeInfoJvm.kt

just not the pipline for sending data apparently

anyways this TypeInfo and its reified type could be passed to

serializerByTypeToken

on kotlinx-serialization

patjackson52

10/24/2018, 2:24 PM

thanks will take a look

I see what you are saying now NikkyAi. I am working with a multiplatform project though, so doesn’t look like serializerByTypeToken is an option.

Nikky

10/26/2018, 12:49 AM

well that seems annoying, in that case you can still use a serializer and turn it into a list serializer, you just way have to turn the result into a string and parse it then unless ktor-client has a method for passing in a custom serializer

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