Spray.IO Stop http server with Http.Unbind - spray

Question

I have an app built on spray 1.3.3 and I'm trying to stop http server by sending message.
Official documentation says:
Stopping. To explicitly stop the server, send an Http.Unbind command to
the HttpListener instance (the ActorRef for this instance is available
as the sender of the Http.Bound confirmation event from when the
server was started).
Here is how i the start server:
(IO(Http) ? Http.Bind(httpListener, interface = iface, port = port)).map {
case m: Http.Bound => println(s"Success $iface:$port")
case fail : Http.CommandFailed => println(s"Bad try :(")
}
I tried to send message Http.Unbind to httpListener but with no success. Seems to be it's not that actor
May be i need to extract somehow sender ref of Http.Bound message? But how?
Here is my httpListener's head:
class MyHttpListener extends HttpServiceActor {
import context.dispatcher
def receive = runRoute(
path("shutdown") {
get {
actors.httpListener ! Http.Unbind
complete("Stopping server")
}
}
Anyway, i just want to send http request to /shutdown and have my application be down

Answer 1

The sender of the Bound message should be the Spray listener, so when receiving that message you can capture it.
You did not post your full actor so this is a little different but I hope this helps.
class MyStarter extends Actor {
// this will be the listener
var myListener: ActorRef = _
override def preStart(): Unit = {
implicit val system = context.system
IO(Http) ! Http.Bind(...)
}
override def receive: Receive = {
case msg: Bound =>
// when you receive the Bound message it was sent by the listener
myListener = sender()
...
case ... => ...
}
}