akka-http

I'm trying client-side websocket by following doc at webSocketClientFlow . sample code is: import akka.actor.ActorSystem import akka.Done import akka.http.scaladsl.Http import akka.stream.ActorMaterializer import akka.stream.scaladsl._ import akka.http.scaladsl.model._ import akka.http.scaladsl.model.ws._ import scala.concurrent.Future object WebSocketClientFlow { def main(args: Array[String]) = { implicit val system = ActorSystem() implicit val materializer = ActorMaterializer() import system.dispatcher // Future[Done] is the materialized value of Sink.foreach, // emitted when the stream

Quick Background I am running through some examples learning the Akka HTTP stack for creating a new REST project (completely non-UI). I have been using and augmenting the Akka HTTP Microservice Example to work through a bunch of use cases and configurations and have been pleasantly surprised by how well Scala & Akka HTTP work. Current Setup Currently I have a configuration like this: object AkkaHttpMicroservice extends App with Service { override implicit val system = ActorSystem() override implicit val executor = system.dispatcher override implicit val materializer = ActorMaterializer()

I would like to chain http request using akka-http-client as Stream. Each http request in a chain depends on a success/response of a previous requests and uses it to construct a new request. If a request is not successful, the Stream should return the response of the unsuccessful request. How can I construct such a stream in akka-http? which akka-http client level API should I use? If you're making a web crawler, have a look at this post . This answer tackles a more simple case, such as downloading paginated resources, where the link to the next page is in a header of the current page response

I'm working with AkkaHTTP in Scala, trying to interact with an API, but I'm having some trouble getting data with certain API calls. Basically, I have a curl command which works in my terminal for any valid API call to this certain API, but in my current code I only get the actual data for calls whose responses are small enough. My first attempt was using sys.process._ and the !! method on a string with "curl (url) -X GET -H \"Authorization: Bearer (auth token)\" (which is the command that works in my terminal), but that failed with an error in scala due to issues parsing the header; so after

I have a akka-streams topology, where I make a POST call using akka-http. I am getting following error when hitting the post request to a un-secure server(having self-signed certs). It is a internal server, so I am fine from security point of view. javax.net.ssl.SSLHandshakeException: General SSLEngine problem at sun.security.ssl.Handshaker.checkThrown(Handshaker.java:1478) ~[?:1.8.0_131] at sun.security.ssl.SSLEngineImpl.checkTaskThrown(SSLEngineImpl.java:535) ~[?:1.8.0_131] at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:813) ~[?:1.8.0_131] at sun.security.ssl

I'm working on a REST service using Akka HTTP (in Scala). I would like a parameter that is passed in to a http get request to be converted to the ZonedDateTime type. The code works fine if I try to use String or Int but fails with a ZonedDateTime type. The code would look like so: parameters('testparam.as[ZonedDateTime]) Here is the error that I'm seeing: Error:(23, 35) type mismatch; found : akka.http.scaladsl.common.NameReceptacle[java.time.ZonedDateTime] required: akka.http.scaladsl.server.directives.ParameterDirectives.ParamMagnet parameters('testparam.as[ZonedDateTime]){ If I add more

I'm building a REST API that starts some calculation in a Spark cluster and responds with a chunked stream of the results. Given the Spark stream with calculation results, I can use dstream.foreachRDD() to send the data out of Spark. I'm sending the chunked HTTP response with akka-http: val requestHandler: HttpRequest => HttpResponse = { case HttpRequest(HttpMethods.GET, Uri.Path("/data"), _, _, _) => HttpResponse(entity = HttpEntity.Chunked(ContentTypes.`text/plain`, source)) } For simplicity, I'm trying to get plain text working first, will add JSON marshalling later. But what is the