I'm trying to serialize a

List

to JSON as value for a key (

"items": [ {...}, {...} ]

) but I'm getting an array with no key instead (

[{...}, {...}]

). I'm using

ktor-serialization-kotlinx-json

, how can I change this behavior?

@Serializable
data class Pages(val items: List<...>)

call.respond(listOf(...))

Hi! I'm trying to wrap my head around

externalServices

. Are the mock servcices only called by the client created in the

testApplicaton

? So if I wanted to make use of those in my application, I'd need to pass in the test client as the client used by my service? The documentation is a little bit unclear.

Is there a way to collect a flow inside the

webSocket

block in Ktor Server and

sendSerialized

the values collected from that flow? In my case, I am observing the changes inside my PostgreSQL DB and returning the changes as a flow from the repository. Now I want to send this flow of values through a websocket connection so that whenever the value inside the flow changes, my websocket also sends a new frame, but right now when I try to do the following:

webSocket(getObservable) {
                    safeCall {
                        val id = call.parameters["id"]
                        repository.getObservable(id = UUID(id)).collect { value ->
                            sendSerialized(value)
                        }
                    }
                }

the websocket connection closes as soon as I connect to it.

I'm trying to migrate my custom Feature into the new Plugin API, but I can't find what is the new equivalent of:

pipeline.environment.monitor.subscribe(Routing.RoutingCallStarted) { it: RoutingApplicationCall
    it.route[..]
}

Where should I look?

Is there a way to create a Url relative to another Url? I have a URL: http://www.somedomain.com/page and another relative path:

/someotherpage

but short of dissecting the URLs, there doesn’t seem to be a way to create one like there is in the JDK:

URL(URL("<http://www.somedomain.com/page>"), "/someotherpage")

Hi all, I saw an issue on YouTrack about one Ktor bug that I had the same: https://youtrack.jetbrains.com/issue/KTOR-5227 I saw your comment. Is there any fix about it? My dependency tree:

plugins {
    id 'com.android.application' version '7.4.2' apply false
    id 'com.android.library' version '7.4.2' apply false
    id 'org.jetbrains.kotlin.android' version '1.8.10' apply false
    id 'com.google.dagger.hilt.android' version '2.44' apply false
    id 'org.jetbrains.kotlin.jvm' version '1.8.10' apply false
}

Ktor version: 2.2.4 JDK version: 11 My Network module:

@Provides
@Singleton
fun createKtorClient(): HttpClient =
     HttpClient(Android).config {
         defaultRequest {
             url("<http://localhost:8080/>")
             contentType(ContentType.Application.Json)                
             accept(ContentType.Application.Json)
         }
         install(Logging) {
             level = LogLevel.ALL
         }
         install(ContentNegotiation) {
             json()
         }
        }

OpenAPI

Swagger

Ktor provides plugins for OpenAPI and Swagger. However the documentation is quite limited. Is there currently any way to add information to the documentation like general API infos and single endpoint descriptions? Both plugins also seem to ignore the

POST

body definitions, is this a known problem?

Hi, a Ktor newbie here I've hard time with post fun, I'm getting

400 Bad request

always even I doubled checked on the request data, the code and details in 🧵

This message was deleted.

Just curious, how Ktor was named, what is the name origin?

Hello guys does ktor have problem with idea plugin development?

I'm using Bearer Token auth with the ktor client, but cant quite figure this out: when i login in and get my new token i save it to storage. but the

HttpClient

it's self doesn't know it needs to call it's

loadTokens

again, is there anyway to get it to reload it's tokens after a login?

I am a newcomer to ktor, I use the following for cookie management at client side,

private val cookieStorage: CookiesStorage = AcceptAllCookiesStorage()
    private val client = HttpClient(engine) {
        expectSuccess = true
        install(ContentNegotiation) {
            json(
                Json {
                    ignoreUnknownKeys = true
                    prettyPrint = true
                }
            )
        }
        install(HttpCookies) {
            cookieStorage
        }
    }

How can I manually clear the cookie stored by HttpCookies?

hello everyone. Is it possible to implement a server running a websocket and normal api??? For example, I want create a api with POST method which sending a message for a client via websocket.

Hi all, how can I create a client plugin/interceptor that reads the response with

bodyAsText

without interfering with other plugins that might want to do the same? At the moment I see that the body can only be read once, after which it gets consumed. Is there a way to prevent that? Thanks

Hello. Is it optimal to save `DefaultWebsocketSession`'s as List in memory on the Ktor server?? Like in the chat example

What's the recommended way to set a timeout on an endpoint in a Ktor Server?

Hi. What is a good way to answer http get query with stream of events. I mean, no content length, infinity long living query, which sometime print a line to output, if client is still there. call.respondOutputStream with explicit flushes seams to be working, but doesn't look suspend friendly. Won't it block more threads than needed?

Is there a way to reliably determine whether an incoming request is coming from a local connection? I want to make an admin panel that is accessible from the machine hosting the server only, but I see the warning about using call.request.local.remoteAddress...

Hi Ktor developers! I'm trying to put together a GitHub repo to collect good resources for Ktor developers. I'm continuously adding good links I can find. If you have something to contribute please fork and send a pull request so we all can learn a bit more about this awesome framework. Thanks in advance! GitHub: https://lnkd.in/en6XYiEW

Hi all - I'm at a loss when it comes to the OAuth module with Ktor. I've based my code off of the ktor-sample project auth-oauth-google however, I'm using Strava as my OAuth provider. The login route works, redirects to Strava and with the help of some logging I can see that the

authorization_code

is returned, and then the token-request is issued witch results in a 200 OK with both the access and refresh token being returned in the body. So everything seems to be good on the strava-side. However, the subsequent callback to

/login/authorization-callback

returns a 401 - which I for the life of me cannot understand. Do any of you have any pointers, or know of any issues with CIO (or something 🤷 ) Code added in the following thread :heart_hands:

Hi guys, what is the best way to get the number of active connect to a ktor server application

Hey, anyone using annotations to create an openapi file from the request dtos?

# How is Ktor different? Hi all! I'm joining a team that uses Ktor and I'm trying to get a grip on what distinguishes it from other frameworks. ---> continued in thread

Is there an easy way to contribute to or make suggestions for the docs? There are some things that I've come across there that are a bit ambiguous or could benefit from more context and I'd like to help

Can IP address be spoofed when reading ApplicationRequest.local.remoteAddress but Forwarded Headers plugin is not installed?

Hello Can anyone please guide me or share document to learn on below Point related to Ktor Client 👇 In my application there could be 3 different HOST URLs. And 1 will be default which is used by default. Is there any way we can keep the URL dynamically ? Thanks

Hi all .. I have been getting this 404 error response when trying to return a serialized data class using kotlin serialization.

"Skipping response body transformation from HttpStatusCode to OutgoingContent for the POST /register request because the HttpStatusCode type is ignored. See [ContentNegotiationConfig::ignoreType]". Anyone knows how I can go about it? I have tried searching online first.

This is how I am installing content negotiation.

fun Application.configureSerialization() {
    install(ContentNegotiation) {
        json()
    }
}

Hey guys! I've been having issues setting up swagger UI for my project. I have the dependency listed, and paths set, but for some reasons, I keep getting an error "Failed to load API definition". You can find screenshots of my setup