My question can be reduced to: are there other certificate types supported by ktor than .jks ?

is there a way in Ktor to do a 301 redirect from www.domain.com to domain.com ? tried doing that 301 redirect at the DNS level and it seems to cause SSL errors.

How to install a feature after Authentication phase so I can use a Principal? Tried this without success:

companion object Feature : ApplicationFeature<ApplicationCallPipeline, Configuration, Permission> {
        override val key = AttributeKey<Permission>("Permissions")

        override fun install(pipeline: ApplicationCallPipeline, configure: Configuration.() -> Unit): Permission {
            val configuration = Configuration().apply(configure)
            val feature = Permission(configuration)
            val permissionPhase = PipelinePhase("PermissionPhase")

            pipeline.insertPhaseAfter(PipelinePhase("RequestAuthentication"), permissionPhase)


            pipeline.intercept(permissionPhase) {
                feature.intercept(this)
            }

            return feature
        }
    }

Hey guys, I'm writing a multiplatform client app with ktor using OkHttp on Android and Ios on iOS. I would like to be able to catch and handle all connection related exceptions (eg.

SocketTimeoutException

,

UnknownHostException

on Android) in my common code, but propagate any other exception. Is there a way to solve my problem ktor?

is there a known issue with not catching child exceptions with StatusPages? I've expanded my exception declaration out to

Throwable

(also tried

Exception

) and can't seem to get it hit my configured exception code still... currently on ktor

1.1.4

If I install KotlinxSerializer for Jdd sad onFeature for ktor, is there a place I can catch kotlinx.SerializationException?

I’m encountering this error. The report is more than a year old. Why hasn’t this been fixed? https://github.com/ktorio/ktor/issues/601 So Locations just don’t work right now and haven’t been working for a year?

hey folks! I’m trying to set a secure flag to my cookies, and I’m getting

java.lang.IllegalArgumentException: You should set secure cookie only via secure transport (HTTPS)

I’m running ktor on http, and proxying it through http/2 nginx. Is there a way to solve this?

Hi, I need some help. I'm using ktor server to build a REST server. I'm using jackson ContentNegotiation and everything is fine. Except now I want that some of my routes answer sometime an image. But event I'm setting the ContentType in my response (call.respondBytes(resultFile.readBytes(), ContentType("image", "png"))) I see that actual headers are still "application/json" ... How can I tweak ktor to not override contentType when I'm explicitly setting it in my response ?

Does anyone know the reasoning behind Ktor (with Kotlinx.Serialization JsonFeature) trying to use reflection to find the serializer generated when annotating something with

@Serialized

when it always generates a KSerializer every time? I am explicitly setting it with

setMapper(KClass, KSerializer)

right now, but am wondering if there is a way to have it detect it as the KSerializer will always be there (to my knowledge).

Is there a way to grab the current authentication/principal outside of the context of an Application.call. Would the only way to do this be to store it as a ThreadLocal and implement a ThreadContextElement to copy into appropriate coroutines?

Hi all, I’ve implemented MicrometerMetrics in my backend + Prometheus to do the pulling from a GET /metrics endpoint and so far it works fine. The problem with this implementation is that it is not scalable (not sure if Prometheus has autodiscovery). Do you know any other way of implementing metrics that is not requiring pull from Prometheus but using push from each backend instance to a elastic search container?

I get this error:

Request of type HttpMethod(value=GET) couldn't send a body with the Android engine.

I see that specifically on the Android engine I cannot send a GET request with an empty body but am unsure of the reasoning for this.

The HttpClientEngine in ktor has a close method, when is that supposed to be used?

Does anyone have an example of using Ktor + Kotlinx.Serialization when getting a JsonArray back as a response? I see the

setListMapper()

and

registerList<>()

functions as part of the JsonFeature, but am unsure of how to use them, or if they are even applicable in the case of getting back an array response. Just trying to test it in a test project at the moment, this is what I have. Does my array need to be within the

@Serializable

data class itself? The format of the response is:

[
    {
        id: 382910,
        name: "name",
        isEnabled: true
    },
    {
        //etc..
    }
]

I get this error:

Can't locate argument-less serializer for interface java.util.List (Kotlin reflection is not available). For generic classes, such as lists, please provide serializer explicitly.

which makes sense but I also believe there is a way to do this without writing a custom serializer, I just can't find the info anywhere.

Is there a way to handle unresolved routes? I'm writing an SPA that uses HTML5 history - which requires all unresolved routes to serve /

using static content https://ktor.io/servers/features/static-content.html can i do

static("/")

and access files from the root of the jar ? it seems like when i do that the requests do not match

I apologize if this has been asked before, but I'm having trouble figuring out what to search for. Is Ktor meant primarily to be a web based library, or is it a good fit for other connected uses (e.g. controlling DMX devices)?

Hey, is there a good example of a ktor application with jdbc connection pooling?

Using the Authentication feature, is there a way to get the credentials during a normal call, I must check if a specific user is allowed to can a specific api or not....

How should I use httpClientCall.cancel()? It seems to be only canceling the current job, so it cannot be done asynchronously

but I get this as a list, so don't want to build it here, but pass in a list

I saw that there was a pull request for a rate limiting feature for Ktor a while ago, but it recently became closed because it got stale. I have done my own rate limiting feature. Is there a high demand for such feature in Ktor? Should I consider doing a PR?

Hi guys, is there a guide on how to mock an HttpClient so that it can return proper WebSocket responses? I was only able to find the mocking guide for the server part, but not the client one

Does Ktor provide a way to detect if the connection is secure (while supporting Forwarded headers)?

i am having issues getting websockets on kotlin-js to work, it seems that on close or timeout they never run

catch

or any code past the websocket https://gist.github.com/NikkyAI/91cd375a24bab6301c14e281cf2d4b93 could alos be that i misunderstood how to use coroutines on js ? also it seems to work on fine on jvm

i am trying to use ping-pong and timeout on websockets with ktor.. but either chrome debugger hides those frame types.. or it does not work does anybody here have experience with that ? i am using

install(WebSockets){
        pingPeriod = Duration.ofSeconds(5)
        timeout = Duration.ofSeconds(10)
    }

I’m having some issues starting an MPP project and using KTOR for iOS. Does anyone have any experience with getting this set up properly? My issue is that I can’t seem to import the

HttpClient

and initialize that engine in the iOS project, I keep getting an “Unresolved Reference”. I have no issues creating the engine for Android. Here is my

build.gradle

plugins {
    id 'org.jetbrains.kotlin.multiplatform' version '1.3.50'
}
repositories {
    google()
    jcenter()
    mavenCentral()
}
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android-extensions'

ext {
    ktor_version = "1.2.5"
}

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId 'org.jetbrains.kotlin.mpp_app_android'
        minSdkVersion 15
        targetSdkVersion 28
        versionCode 1
        versionName '1.0'
        testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
    }
    buildTypes {
        release {
            minifyEnabled false
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
}

kotlin {
    android("android")
    // This is for iPhone emulator
    // Switch here to iosArm64 (or iosArm32) to build library for iPhone device
    iosX64("ios") {
        binaries {
            framework()
        }
    }
    sourceSets {
        commonMain {
            dependencies {
                implementation kotlin('stdlib-common')
                implementation "io.ktor:ktor-client-core:$ktor_version"
            }
        }
        commonTest {
            dependencies {
        		implementation kotlin('test-common')
        		implementation kotlin('test-annotations-common')
            }
        }
        androidMain {
            dependencies {
                implementation "io.ktor:ktor-client-core-jvm:$ktor_version"
                implementation "io.ktor:ktor-client-apache:$ktor_version"
                implementation kotlin('stdlib')
            }
        }
        androidTest {
            dependencies {
                implementation kotlin('test')
                implementation kotlin('test-junit')
            }
        }
        iosMain {
            dependencies {
                implementation "io.ktor:ktor-client-core-native:$ktor_version"
                implementation "io.ktor:ktor-client-ios:$ktor_version" // I saw in Maven that the last recorded version (that I could see) was 1.0.1  - I tried that too
            }
        }
        iosTest {
        }
    }
}

// This task attaches native framework built from ios module to Xcode project
// (see iosApp directory). Don't run this task directly,
// Xcode runs this task itself during its build process.
// Before opening the project from iosApp directory in Xcode,
// make sure all Gradle infrastructure exists (gradle.wrapper, gradlew).
task copyFramework {
    def buildType = project.findProperty('kotlin.build.type') ?: 'DEBUG'
    def target = project.findProperty('kotlin.target') ?: 'ios'
    dependsOn kotlin.targets."$target".binaries.getFramework(buildType).linkTask

    doLast {
        def srcFile = kotlin.targets."$target".binaries.getFramework(buildType).outputFile
        def targetDir = getProperty('configuration.build.dir')
        copy {
            from srcFile.parent
            into targetDir
            include 'app.framework/**'
            include 'app.framework.dSYM'
        }
    }
}

Hello, I am having an issue with iOS memory leaks when I make a ktor get request. The dispatcher is being built on the iosX64/iosArm32/iosArm32 side through an class implementing CoroutineDispatcher() with the override fun dispatch doing

dispatch_async(dispatch_get_main_queue()) {
    block.run()
}

Is there a way to extend frame class, it is "actual sealed" in package io.ktor.http.cio.websocket, but one should not restrict to have only Text and Binary frames cuz its very hard to send packets for different-different purposes.