akka-http

I am trying to setup a simple akka-http 2.4.2 project to test it out, but I am failing to do so. My built.sbt: import NativePackagerHelper._ lazy val akkaVersion = "2.4.2" lazy val root = (project in file(".")). settings( name := "akkTest", version := "0.1", scalaVersion := "2.11.7") libraryDependencies ++= Seq( "com.typesafe.akka" %% "akka-actor" % akkaVersion, "com.typesafe.akka" %% "akka-http-spray-json-experimental" % akkaVersion ) enablePlugins(JavaServerAppPackaging) my code snippet in Main.scala import akka.http.scaladsl.Http import akka.stream.ActorMaterializer import akka.stream

We have a docker image and a corresponding yaml file for the deployment using kubernetes. The application we have built is in scala with akka-http. We have used akka-cluster. We have a particular variable(seed-nodes in our case - akka cluster) in the configuration file which is used in our application code that uses the pod ip. But, we will not get the pod ip unless the deployment is done. How should we go about tackling the issue? Will environment variables help, if yes how? More specifically, Once the docker images is deployed in the container in a pod, and when the container starts, the pod

Basically I want to allow a user to download a csv file from the server. Assume the CSV file already exists on the server. A API endpoint is exposed via GET /export. How do I stream the file from Akka HTTP server to client? This is what I have so far... Service: def export(): Future[IOResult] = { FileIO.fromPath(Paths.get("file.csv")) .to(Sink.ignore) .run() } Route: pathPrefix("export") { pathEndOrSingleSlash { get { complete(HttpEntity(ContentTypes.`text/csv`, export()) } } } The Akka-Stream API allow you to create an entity directly out of a Source[ByteString, _] , so you can do something

In akka-http routing I can return Future as a response that implicitly converts to ToResponseMarshaller . Is there some way to handle timeout of this future? Or timeout of connection in route level? Or one way is to use Await() function? Right now client can wait response forever. complete { val future = for { response <- someIOFunc() entity <- someOtherFunc() } yield entity future.onComplete({ case Success(result) => HttpResponse(entity = HttpEntity(MediaTypes.`text/xml`, result)) case Failure(result) => HttpResponse(entity = utils.getFault("fault")) }) future } Adding a timeout to an

This is the first time I'm working with akka-http. I wrote the following main class which starts the application: object Main extends App with Routes with Config with Protocols { implicit val system: ActorSystem = ActorSystem("slickboard-system") implicit val executor: ExecutionContext = system.dispatcher implicit val materializer: ActorMaterializer = ActorMaterializer() override val employeeActor: ActorRef = system.actorOf(EmployeeActor.props, "employees") val server = Http().bindAndHandle(route, httpServerURL, httpServerPort) } It starts a server on localhost, but when I try to deploy it on

I have a service (let's call it Service A) which uses Akka Server HTTP to handle incoming requests. Also I have 3rd party application (Service B) which provides several web services. The purpose of service A is to transform client requests, call one or multiple web services of service B, merge/transform results and serve it back to a client. I am using Actors for some parts, and just Future for other. To make a call to Service B, I use Akka HTTP client. Http.get(actorSystem).singleRequest(HttpRequest.create() .withUri("http://127.0.0.1:8082/test"), materializer) .onComplete(...) The issue is,

I'm using Akka 2.4.4 and trying to move from Apache HttpAsyncClient (unsuccessfully). Below is simplified version of code that I use in my project. The problem is that it hangs if I send more than 1-3 requests to the flow. So far after 6 hours of debugging I couldn't even locate the problem. I don't see exceptions, error logs, events in Decider . NOTHING :) I tried reducing connection-timeout setting to 1s thinking that maybe it's waiting for response from the server but it didn't help. What am I doing wrong ? import akka.actor.ActorSystem import akka.http.scaladsl.Http import akka.http

I've a route as follows: val route = { logRequestResult("user-service") { pathPrefix("user") { get { respondWithHeader(RawHeader("Content-Type", "application/json")) { parameters("firstName".?, "lastName".?).as(Name) { name => findUserByName(name) match { case Left(users) => complete(users) case Right(error) => complete(error) } } } } ~ (put & entity(as[User])) { user => complete(Created -> s"Hello ${user.firstName} ${user.lastName}") } ~ (post & entity(as[User])) { user => complete(s"Hello ${user.firstName} ${user.lastName}") } ~ (delete & path(Segment)) { userId => complete(s"Hello $userId")