Node.js - #6 - Core Modules - Net

NodeJS_6_Net/client.js

@@ -0,0 +1,18 @@
+var net = require('net');
+
+var client = net.connect(3000);
+client.on('connect', function () {
+	client.write('Hello, I am the client!');
+});
+client.on('data', function (message) {
+	console.log(message.toString());
+});
+client.on('end', function () {
+	process.exit();
+});
+process.stdin.on('readable', function () {
+	var message = process.stdin.read();
+	if (!message) return;
+	message = message.toString().replace(/\n/, '');
+	client.write(message);
+});

NodeJS_6_Net/server.js

@@ -0,0 +1,29 @@
+var net = require('net');
+
+var connections = [];
+
+var broadcast = function (message, origin) {
+  connections.forEach(function (connection) {
+    if (connection === origin) return;
+    connection.write(message);
+  });
+};
+
+net.createServer(function (connection) {
+  connections.push(connection);
+  connection.write('Hello, I am the server!');
+  connection.on('data', function (message) {
+    var command = message.toString();
+    if (command.indexOf('/nickname') === 0) {
+      var nickname = command.replace('/nickname ', '');
+      broadcast(connection.nickname + ' is now ' + nickname);
+      connection.nickname = nickname;
+      return;
+    }
+    broadcast(connection.nickname + ' > ' + message, connection);
+  });
+  connection.on('end', function () {
+    broadcast(connection.nickname + ' has left!', connection);
+    connections.splice(connections.indexOf(connection), 1);
+  });
+}).listen(3000);