Main.scala

object Main extends App with StrictLogging {
  implicit val system: ActorSystem = ActorSystem("crud-service")
  implicit val materializer: ActorMaterializer = ActorMaterializer()
  implicit val executionContext: ExecutionContext = system.dispatcher

  val (server, cfg) = AppConfig.load.fold(e => sys.error(e.toString), identity)
  val mod = new Module(true, cfg)
  val serverBinding = Http().bindAndHandle(mod.routes, server.host, server.port)

  serverBinding.onComplete {
    case Success(bound) =>
      logger.info("Server launched at http://{}:{}/", 
                  bound.localAddress.getHostString, 
                  bound.localAddress.getPort)
    case Failure(e) =>
      logger.error("Server could not start!")
      e.printStackTrace()
      system.terminate()
      mod.close()
  }

  Await.result(system.whenTerminated, Duration.Inf)
}