java - How to respond with the result of an actor call? -

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we looking @ using akka-http java api - using routing dsl.

it's not clear how use routing functionality respond httprequest; using untyped akka actor. example, upon matching route path, how hand off request "handler" actorref, respond httpresponse in asynchronous way?

a similar question posted on akka-user mailing list, no followup solutions such - https://groups.google.com/d/msg/akka-user/qhe3ko7evvg/kc-akz_o5aoj.

this can accomplished combination of oncomplete directive , ask pattern.

in below example requesthandleractor actor used create httpresponse based on httprequest. actor asked within route.

i have never used java routing code response in scala.

import scala.concurrent.duration._ import akka.actor.actorsystem import akka.http.scaladsl.model.httpresponse import akka.http.scaladsl.model.httprequest import akka.actor.actor import akka.http.scaladsl.server.directives._ import akka.actor.props import akka.pattern.ask import akka.util.timeout import scala.util.{success, failure} import akka.http.scaladsl.model.statuscodes.internalservererror  class requesthandleractor extends actor {   override def receive = {     case httprequest : httprequest =>       sender() ! httpresponse(entity = "actor responds nicely")   } }  implicit val actorsystem = actorsystem() implicit val timeout = timeout(5 seconds)  val requestref = actorsystem actorof props[requesthandleractor]  val route =    extractrequest { request =>     oncomplete((requestref ? request).mapto[httpresponse]) {       case success(response) => complete(response)       case failure(ex) =>          complete((internalservererror, s"actor not playing nice: ${ex.getmessage}"))     }    }

this route can used passed bindandhandle method other flow.


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