UDP client and server in Node

udp_client.js

var client = dgram.createSocket("udp4");

client.on("message", function(data, info) {
	console.log("got: " + data.toString("utf8") + " from " + info.address);
});
client.on("listening", function() {
	console.log("client listening " + client.address().address);

	setTimeout(function() {
		var message = new Buffer("A message at " + (new Date()));
		
		client.send(message, 0, message.length, 8001, "localhost");
	}, 5000);
});
client.bind(8002, "localhost");

udp_server.js

var server = dgram.createSocket("udp4");

server.on('message', function(data, info) {
	console.log(data.toString("utf8"), info);
});
server.bind(8001, "localhost");