trying out a UDP listener in Dart

udp_listener.dart

import 'dart:io';

void main() {
  RawDatagramSocket.bind('127.0.0.1', 5514, reuseAddress: true).then((value) {
    value.listen((event) {
      if (event == RawSocketEvent.READ) {
          var datagram = value.receive();
          print(new String.fromCharCodes(datagram.data));
      }
    });
  });
}