or maybe better phrased, why can't you make extension functions to Routing suspend and use it in routing { }

Hi @Nezteb May be you can have a look to https://github.com/ktorio/ktor/issues/453, inside this issue, you have a link to a Github repo that should have something you want https://github.com/nielsfalk/ktor-swagger. Give us a feedback.

Is there a way to use Ktor 1.2.0 alpha with Kotlin 1.3.30? Could you make a new release with 1.3.30 support?

I may have missed something, how do you do a post request without expecting a response body with the Http client?

<http://client.post|client.post><Unit>(...)

or something like that?

can ktor (server) be compiled to kotlin-js or only the client ? my intended usecase is a fallback integrated server for a boardgame client in js/jfx

The stacktrace shows a call to

lookupSerializerByType

which does not look for serializers in

listMappers

(where

registerList<Long>()

places the serializer).

@Dennis Schröder I am not too sure to understand your question. You mean to have a component (your packed jar or fatjar piece of code) modifying the routes of an app that includes as a dependency your component ?

Are native (linux, macOS, mingw) sockets planned for 1.2.0?

There is a huge problem with

ktor-client-android

, I get a

400

with a nice json response on Android L/21 to a request but the client never actually sent the request to the server, it responded alone with this:``` { "message": "Bad request", "status": 400 }``` I can’t provide a way to reproduce the issue so I don’t know if it’s worth to open one on Github. The problem doesn’t occur with Android Q/29. I worked around the issue by switching to

ktor-client-okhttp

How do you build your API for example for registration, there is password field, it has some constraints(length, allowed characters) are these constraints also hardcoded on client side, or do you have and endpoint in the API to retrieve constraints information?

Hi, is it possible to do "forward" (inner call) with ktor? Example if I have some action which receives GET requests as an array, and it must return an array of all responses. How can this be implemented with ktor?

Hi, i was wondering if ktor client-side was compatible with all api versions of android? I saw in the FAQ that ktor servers were only for android 27 and up, but i didn't see anything for ktor clients. I am asking because i have a connection "closed by peer" error on kitkat but works on other versions

Hi guys, I'm building a server side application. I would like to know what is the best practice to avoid having a big routing resource file ? How can we divide ? Imagine I have those urls for my API: GET /animal POST /animal GET /animal/:id POST /animal/:id and 20 URLs more starting by /animal.... I think having a "AnimalResource.kt" for all those url is not the best practice. How can I do ?

Documentation on

invoke()

warned against overusing it, right now I am using it for all my uses cases e.g

class CreateNewSubCategory @Inject constructor(private val subcategoryRepository: SubCategoryRepository){
    suspend operator fun invoke(category: Subcategory): Int = subcategoryRepository.createSubCategory(category)
}

Is there any detriment to that?

Been getting some strange errors from Jetty:

2019-04-26 13:35:26 DEBUG ManagedSelector:395 - Selector sun.nio.ch.EPollSelectorImpl@3127e5fa waiting with 1 keys
2019-04-26 13:35:26 DEBUG IdleTimeout:156 - SocketChannelEndPoint@1c0f19b5{/192.168.10.40:45496<->/192.168.10.40:10001,OPEN,fill=-,flush=-,to=5/30000}{io=0/0,kio=0,kro=0}-><null> idle timeout check, elapsed: 5 ms, remaining: 29995 ms
2019-04-26 13:35:26 DEBUG SslContextFactory:1645 - Customize sun.security.ssl.SSLEngineImpl@26e0da09
2019-04-26 13:35:26 DEBUG PreEncodedHttpField:64 - HttpField encoders loaded: [org.eclipse.jetty.http2.hpack.HpackFieldPreEncoder@172d9369]
2019-04-26 13:35:26 DEBUG ManagedSelector:671 - 
java.lang.ExceptionInInitializerError
	at org.eclipse.jetty.server.HttpConnection.<clinit>(HttpConnection.java:56)
	at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
	at org.eclipse.jetty.server.SslConnectionFactory.newConnection(SslConnectionFactory.java:95)
	at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:532)
	at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:227)
	at org.eclipse.jetty.io.ManagedSelector.access$1500(ManagedSelector.java:60)
	at org.eclipse.jetty.io.ManagedSelector$Accept.run(ManagedSelector.java:667)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
	at org.eclipse.jetty.http.PreEncodedHttpField.<clinit>(PreEncodedHttpField.java:71)
	... 10 more
2019-04-26 13:35:26 WARN  ManagedSelector:679 - java.lang.ExceptionInInitializerError
2019-04-26 13:35:26 DEBUG ManagedSelector:680 - 
java.lang.ExceptionInInitializerError
	at org.eclipse.jetty.server.HttpConnection.<clinit>(HttpConnection.java:56)
	at org.eclipse.jetty.server.HttpConnectionFactory.newConnection(HttpConnectionFactory.java:85)
	at org.eclipse.jetty.server.SslConnectionFactory.newConnection(SslConnectionFactory.java:95)
	at org.eclipse.jetty.server.ServerConnector$ServerConnectorManager.newConnection(ServerConnector.java:532)
	at org.eclipse.jetty.io.ManagedSelector.createEndPoint(ManagedSelector.java:227)
	at org.eclipse.jetty.io.ManagedSelector.access$1500(ManagedSelector.java:60)
	at org.eclipse.jetty.io.ManagedSelector$Accept.run(ManagedSelector.java:667)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
	at org.eclipse.jetty.http.PreEncodedHttpField.<clinit>(PreEncodedHttpField.java:71)
	... 10 more
2019-04-26 13:35:26 DEBUG QueuedThreadPool:682 - ran org.eclipse.jetty.io.ManagedSelector$Accept@229ba41d

the following code never prints anything for me:

the "Jooooo" is printed, but never 'request config'

Hi, I have a question regarding mapping routing with special characters, example:

get("/item/{itemId}/search?address[lat]={lat}")

unfortunately ktor can’t map it, from server I see that request was encoded as:

/item/1234/search?address%5Blat%5D={lat}

is it issue or I do something wrong? I tried to find something here or in docs, what I found is:

<https://ktor.io/servers/features/routing.html#tracing>

after applying trace to routing:

/item/1234/search?address[lat]={lat}, segment:3 -> FAILURE "Selector didn't match" @ /item/1234/search?address%5Blat%5D={lat})

hello, I have a question about client error handling. if i call

request<HttpResponse>

I can check for status and other things in order to do my own error handling, but then i can't leverage the built in Json deserialization of my object. but if i call

request<MyObject>

in order to get the deserialization, it is not clear how to check and handle errors. I am looking for something like Fuel's `Result.fold`:

inline fun <X> fold(success: (V) -> X, failure: (E) -> X): X = when (this) {
        is Success -> success(this.value)
        is Failure -> failure(this.error)
    }

. is there something like this in ktor?

(Succeeded differently, but the questions still stands why the example from the documentation doesn't work, the

formData

function is very nice, why doesn't it work?)

Found the issue, it has to be

MultiPartFormDataContent

, not

FormDataContent

as the documentation wrongly states.

Keep on seeing Connection reset by peer errors (looks as though there is a issue on the client side) in the server logs which are caused by the Android client (but not Postman in testing). The server uses Ktor 1.1.2, Kotlin 1.3.20, Zulu JDK 11.0.2, and Netty as the web engine. Below is the server error:

DEBUG Application:102 - I/O operation failed
java.io.IOException: Connection reset by peer
	at java.base/sun.nio.ch.FileDispatcherImpl.read0(Native Method)
	at java.base/sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
	at java.base/sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:276)
	at java.base/sun.nio.ch.IOUtil.read(IOUtil.java:233)
	at java.base/sun.nio.ch.IOUtil.read(IOUtil.java:223)
	at java.base/sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:358)
	at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288)
	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1108)
	at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:345)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:148)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:545)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:499)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.base/java.lang.Thread.run(Thread.java:834)

On the Android client side it looks as though there is a issue on the server side with Socket Closed (https://stackoverflow.com/questions/24620953/android-error-java-net-socketexception-socket-closed) errors appearing in the logs. Encountering bi-directional issues here where it isn't clear which side is causing the issue 😕. How do I know if the issue is on the server side?

Hi, im trying to compile ktor from master, but im getting the error message

Cannot change attributes of configuration ':ktor-server:ktor-server-jetty:ktor-server-jetty-test-http2:posixApiElements' after it has been resolved

Anyone who knows a quickfix for that?

with ktor, are we able to access the response body at all if we use a serialized class as the response type?

It looks like if I want to use Ktor/iOS then I have to stay with Kotlin

1.3.20

at the moment, is that correct?

Are Websockets supported for iOS in

1.1.5

? There's a

ktor-client-websocket-1.1.5

artifact. ... but no

1.1.5

for any of the platform-specific

ktor-client-websocket-1.1.5-*

artifacts... ?

Hi, where can I find more information about HttpClient pipelines and it's corresponding phases?

I'm a bit confused by

Locations

- why isn't this just built into

Routing

?

does jwt auth work with the location api? i do something like routing { somethingWitoutAuth() authenticate("jwt") { routing { somethingWithAuth(); } } }