udp 1.0.2

Lightweight, efficient, and easy-to-use UDP library for Dart. Supports Unicast, Broadcast, and Loopback communications.

example/udp_example.dart

/*
 *
 *  Copyright 2019 Kennedy Tochukwu Ekeoha 
 *  
 *  Redistribution and use in source and binary forms, with or without 
 *  modification, are permitted provided that the following conditions 
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 *  this software without specific prior written permission. 
 *  
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
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import 'package:udp/udp.dart';
import 'dart:io';

main() async {
  // creates a UDP instance and binds it to the local address and the port 42.
  var sender = await UDP.bind(Endpoint.loopback(port: Port(42)));

  // send a simple string to a broadcast endpoint on port 21.
  var dataLength =
      sender.send("Hello World!".codeUnits, Endpoint.broadcast(port: Port(21)));

  stdout.write("${dataLength} bytes sent.");

  // creates a new UDP instance and binds it to the local address and the port
  // 39.
  var receiver = await UDP.bind(Endpoint.loopback(port: Port(39)));

  // receiving\listening
  await receiver.listen((datagram) {
    var str = String.fromCharCodes(datagram.data);
    stdout.write(str);
  }, Duration(seconds: 20));

  // close the UDP instances and their sockets.
  sender.close();
  receiver.close();
}