I’m trying to add ktor client to an Spring Boot Maven Project but IntelliJ does not detect the dependency. This is my pom

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="<http://maven.apache.org/POM/4.0.0>" xmlns:xsi="<http://www.w3.org/2001/XMLSchema-instance>"
         xsi:schemaLocation="<http://maven.apache.org/POM/4.0.0> <https://maven.apache.org/xsd/maven-4.0.0.xsd>">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.3</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demoproject</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demoproject</name>
    <description>demoproject</description>
    <properties>
        <java.version>1.8</java.version>
        <kotlin.version>1.6.10</kotlin.version>
        <ktor.version>1.6.7</ktor.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-webflux</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-kotlin</artifactId>
        </dependency>
        <dependency>
            <groupId>io.projectreactor.kotlin</groupId>
            <artifactId>reactor-kotlin-extensions</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-reflect</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-stdlib-jdk8</artifactId>
        </dependency>
        <dependency>
            <groupId>org.jetbrains.kotlinx</groupId>
            <artifactId>kotlinx-coroutines-reactor</artifactId>
        </dependency>
        <dependency>
            <groupId>io.ktor</groupId>
            <artifactId>ktor-client-core</artifactId>
            <version>${ktor.version}</version>
        </dependency>
        <dependency>
            <groupId>io.ktor</groupId>
            <artifactId>ktor-client-cio</artifactId>
            <version>${ktor.version}</version>
        </dependency>
        <dependency>
            <groupId>io.ktor</groupId>
            <artifactId>ktor-client-serialization</artifactId>
            <version>${ktor.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>io.projectreactor</groupId>
            <artifactId>reactor-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <sourceDirectory>${project.basedir}/src/main/kotlin</sourceDirectory>
        <testSourceDirectory>${project.basedir}/src/test/kotlin</testSourceDirectory>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.jetbrains.kotlin</groupId>
                <artifactId>kotlin-maven-plugin</artifactId>
                <configuration>
                    <args>
                        <arg>-Xjsr305=strict</arg>
                    </args>
                    <compilerPlugins>
                        <plugin>spring</plugin>
                    </compilerPlugins>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>org.jetbrains.kotlin</groupId>
                        <artifactId>kotlin-maven-allopen</artifactId>
                        <version>${kotlin.version}</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>

</project>

An this is what I get :

Hey, I’m using ktor-client-cio and trying to figure out if there is anyway to change dns resolver instead of using java network, I need to setup a timeout for the resolution and a retry count. Any ideias on where to look? (Seen this)

With ktor logging headers (

LogLevel.HEADERS

) application/customer secrets in the auth header are logged as below. I’d like to redact these secrets, as

******

. Has anyone found a non-invasive way of doing this?

[***] 2022-02-22 08:59:45.641 [main] INFO  io.ktor.client.HttpClient - METHOD: HttpMethod(value=GET)
  [***] 2022-02-22 08:59:45.641 [main] INFO  io.ktor.client.HttpClient - COMMON HEADERS
  [***] 2022-02-22 08:59:45.641 [main] INFO  io.ktor.client.HttpClient - -> Accept: application/json
  [***] 2022-02-22 08:59:45.641 [main] INFO  io.ktor.client.HttpClient - -> Accept-Charset: UTF-8
  [***] 2022-02-22 08:59:45.641 [main] INFO  io.ktor.client.HttpClient - -> Authorization: token my_super_secret_token_that_I_want_to_redact

which returns something like :

"errors": {
   "title": ["The title must contain at least 20 characters"],
   "body": ["The body must contain at least 20 characters"]
}

When I add a watch to my application.conf I get an error.

image.png

Something we’re working on to make it even easier for folks new to Ktor and the ecosystem. https://twitter.com/hhariri/status/1496430175332048896

Hello, does Ktor client reuse connections?

is it possible to get the

expectedType

in request or send pipelines?

HI; Ktor (1.6.7) provides a url {} dsl to facilitate building new urls based on e.g. incoming requests, etc. Unfortunately, this only returns the url as String; would it be possible to allow returning a Url instead of the String ?

Hi, anyone use Valiktor or Konform for request validation? I saw that the projects were updated a long time ago and I wonder it's still worth using them

I’m creating a middleware and I’m wondering if I could make

call

available from it ? :

fun Application.hasSignedUrlMiddleware() {
    routing {
        val uri = call.request.uri
//        if(url doesn't have a signed url) {
//            throw AuthorizationException("Sorry you are not authorized")
//        }
    }
}

get("/posts") {
            hasSignedUrlMiddleware()
            call.respond(mapOf("posts" to postDAO.all()))
        }

Hey folks, I posted a multiplayer demo a few days ago which uses ktor websockets, I noticed that the memory usage goes up slowly overtime on google cloud run for some reason. From looking at my code, it's unclear to me where the memory leak is coming from, I was wondering if someone could please review my code? https://github.com/Kietyo/KorgeMultiplayerDemo/tree/master/Server

Why was the single page plugin removed in https://github.com/ktorio/ktor/pull/2824? Does that mean it's not ready for inclusion in EAP yet?

The SPA plugin doesn't actually work 😞 opened https://youtrack.jetbrains.com/issue/KTOR-3944

just realized that ktor eap-310+ depends on Kotlin nightly? didn't realize this until I ditched spring since it force downgrades the dependency

Could not find org.jetbrains.kotlin:kotlin-stdlib-common:1.6.20-M1-106.

and things like this for a full screen spam.

I’m declaring my server with the following :

fun main() {
    embeddedServer(
        factory = CIO,
        environment = applicationEngineEnvironment {
            config = HoconApplicationConfig(ConfigFactory.load())
            connector {
                port = 8080
            }
            module(Application::module)
        },
    ).start(wait = true)
}

fun Application.module() {
    val jwtValues = jwtValues(environment)
    val pbkdf2Values = pbkdf2Values(environment)
    val database = SamkjoringDatabase()

    configureRouting(jwtValues, pbkdf2Values, database)
    configureSerialization()
    configureSecurity()
    configureTemplate()
}

and my

resources/application.conf

jwt {
    secret = "7lgeBk06UhkLRLFDhQn3"
    issuer = "<http://0.0.0.0:8080/>"
    audience = "<http://0.0.0.0:8080/login>"
    realm = "Access to 'login'"
}
pbkdf2 {
    salt = "qdQk4P2TNvHc"
    iterations = "10000"
    keyLength = "512"
}

But I get the error

Exception in thread “main” io.ktor.config.ApplicationConfigurationException: Property jwt.secret not found.

at io.ktor.config.HoconApplicationConfig.property(HoconApplicationConfig.kt:15)

at no.samkjoring.plugins.auth.JwtKt.jwtValues(jwt.kt:27)

What am I missing here?

trying to use ktor-server on kotlin-native.. got everything i care about working .. but StatusPages seems to not work the callbacks for handling exceptions get executed.. but

call.respondText(text = cause.message, status = HttpStatusCode.InternalServerError)

seems to not trigger a http response and the request is just hanging

Hi all, I'm hoping there's a way to do this, but is there any way to authenticate all routes in an application without wrapping authenticate everywhere? We have an application that's structuring the routes

routing {
  someRoute1()
  someRoute2()
  ...
  someRoute100()
}

with each group of routes in it's own file

fun Application.someRoute1() {
  routing {
    route('/some/{place}') {
      head {
      }
      get {
      }
    }
  }
}

however, we now want to add authentication to all routes, but if we add the authenticate function to the first example,

routing {
  authenticate {
    someRoute1()
    someRoute2()
    ...
    someRoute100()
  }
}

it doesn't seem like the individual route functions get the authenticate function. Is there a way to do this without manually editing each individual route file?

Has anyone managed to do auto-reload with

embeddedServer

? There are two serious issues: 1. The documentation doesn't mention that the reloader only works if the

module

parammeter to

embeddedServer

refers to a function (if you use the lambda in attempt for simplicity, it doesn't work). 2. The server appears to break and start giving empty responses under some race condition, maybe if another HTTP request arrive during the restart? (still debugging)

can i define a custom logger for ktor ? specifically on native i would like to make this align: it seems like i will have to copy the

embeddedServer

call chain and add a custom

KtorSimpleLogger

implementation

I started a new project in IntelliJ - "multiplatform full stack web application". By default, it has a ktor route

static("/static") { resources() }

, which serves the compiled JS. Problem is: it serves all resources! Insecure, no? How do I change the gradle file to copy the compiled JS into a subdir? (More in thread)

I'm implementing authentication using JWT and new requirement of supporting Google/Facebook/Apple login may come very soon. Is there any easy way to build these using OAuth by keeping the existing JWT authentication for normal email/password login flows?

image.png

in kotlin-native .. what is the correct way to start ktor so that i can shut it down from a signal handler? seems like doing

server.start(wait = true)

will just block my application completely when i call

server.stop(500, 500)

not sure why.. could it be that joining the jobs is blocking ? for now i am using this..

server = embeddedServer(...)

server.start(wait = false)

while (true) {
    sleep(1)
}

and in the signal handler i call

server.stop(500, 500)

if anybody knows a cleaner solution.. would like to make this work better i also noticed.. if i use

delay

instead of sleep it will also continue to block..?

We are about to start a financial news and analytics app project. The client is going to be Flutter, which we've successfully used before, and we've decided to use Kotlin for the backend. We are contemplating wether to use Ktor or Spring Boot + Kotlin. We are leaning toward Ktor because its idiomatically aligned with Kotlin and has a simple, consistent and concise set of APIs, but there is a larger community and more written about Spring Boot. Any advice on this decision (Ktor vs. Spring Boot + Kotlin)? There is a short but interesting conversation about this choice on Reddit: https://www.reddit.com/r/Kotlin/comments/pgfuhn/ktor_vs_spring_for_creating_an_api/

Hello, I’m trying to set contentType in

defaultRequest

but it crashesh in iOS, and when I wanna set

contentType

in post request, this exception raise

I have also installed `ContentNegotation` and `json`

Fail to serialize body. Content has type: class org.metatude.paxfa.auth.login.LoginEmailRequestDto, but OutgoingContent expected.
If you expect serialized body, please check that you have installed the corresponding plugin(like `ContentNegotiation`) and set `Content-Type` header.

Hey is anyone here using the latest Intellij IDEA with the Ktor plugin? I’m using the 30 day trial that gives access to Ultimate, but it wont let me install the Ktor plugin b/c of a compatibility issue (see images)…If this is the case, where do I find the older build version?

I have ktor client in an Android codebase. I have a single apiclient = HttpClient(okhttp) with multiple install() like install(logging). How can I turn logging on and off with a variable passed to apiclient. Like apiclient(true).post(url), thanks

Hi all, Wondering if we can call API synchronously using Ktor Engine. Actually, whenever I'm getting 401 Authorization Token Expired error, I've to call Login API implicitly from Authenticator. Now this api call need to be called synchronously as after getting login API response, i've to update the header with Auth Token and return the request again from authenticate method. Thanks