Akka Actor per request in Play2 Controller

gistfile1.scala

object BlackListController extends Controller {

  val myActor = Akka.system.actorOf(Props[LicenceBlackList], name = "LicenceBlackListActor")

  type OptionalBlacklistEntry = Option[BlacklistEntry]

  def get(key: String) = Action.async {
    //we will use this promise to create a future (read handle) which will be returned from this action. This future will complete when the promise is successfully populated with value
    val p = Promise[Option[BlacklistEntry]]

    //create a new actor per request instance to handle this particular request
    val replyTo = Akka.system.actorOf( Props( new Actor {
      def receive = {
        case reply: OptionalBlacklistEntry =>
          p.success(reply)
          context.stop(self) //terminate this actor instance
      }
    }))

    //send message to another actor
    myActor.tell(msg = ReadEntry(key), sender = replyTo)

    //transforming the actor response to Play result
    p.future.map(response => {
      response match {
        case Some(blackListEntry) => Ok(Json.toJson( blackListEntry ))
        case None => NotFound
      }
    })
  }
}