drorm/chat.html

## chat.html
<html>
<head>
<script src="/socket.io/socket.io.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>
</head>
<body>
<script>
        var URL = window.location.protocol + "//" + window.location.host;
        console.log("Connecting to " + URL);
        var socket = io.connect(URL);

        // on connection to server, ask for user's name with an anonymous callback
        socket.on('connect', function(){
                // call the server-side function 'adduser' and send one parameter (value of prompt)
                socket.emit('adduser', prompt("What's your name?"));
        });

        // listener, whenever the server emits 'updatechat', this updates the chat body
        socket.on('updatechat', function (username, data) {
                $('#conversation').append('<b>'+username + ':</b> ' + data + '<br>');
        });

        // listener, whenever the server emits 'updateusers', this updates the username list
        socket.on('updateusers', function(data) {
                $('#users').empty();
                $.each(data, function(key, value) {
                        $('#users').append('<div>' + key + '</div>');
                });
        });

        // on load of page
        $(function(){
                // when the client clicks SEND
                $('#datasend').click( function() {
                        var message = $('#data').val();
                        $('#data').val('');
                        // tell server to execute 'sendchat' and send along one parameter
                        socket.emit('sendchat', message);
                });

                // when the client hits ENTER on their keyboard
                $('#data').keypress(function(e) {
                        if(e.which == 13) {
                                $(this).blur();
                                $('#datasend').focus().click();
                        }
                });
        });

</script>
<div style="float:left;width:100px;border-right:1px solid black;height:300px;padding:10px;overflow:scroll-y;">
        <b>USERS</b>
        <div id="users"></div>
</div>
<div style="float:left;width:300px;height:250px;overflow:scroll-y;padding:10px;">
        <div id="conversation"></div>
        <input id="data" style="width:200px;" />
        <input type="button" id="datasend" value="send" />
</div>

</body>
</html>

## package.json
{
  "name": "node-chat",
  "version": "0.0.1",
  "dependencies": {
  "express": "^4.4.1",
    "socket.io": "latest"
  },
  "engines": {
    "node": "0.8.x",
    "npm": "1.1.x"
  }
}

## proxy.js
//Chat from http://michieldemey.be/blog/node-js-and-socket-io-a-basic-chat-application-using-websockets/
var http = require('http'),
    httpProxy = require('http-proxy'),
    express = require('express');

// create a server
var app = express();
var proxy = httpProxy.createProxyServer({ ws: true });

// proxy HTTP GET / POST
app.get('/socket.io/*', function(req, res) {
  console.log("proxying GET request", req.url);
  proxy.web(req, res, { target: 'http://localhost:8081'});
});
app.post('/socket.io/*', function(req, res) {
  console.log("proxying POST request", req.url);
  proxy.web(req, res, { target: 'http://localhost:8081'});
});

// Proxy websockets
app.on('upgrade', function (req, socket, head) {
  console.log("proxying upgrade request", req.url);
  proxy.ws(req, socket, head);
});

// serve static content
app.use('/', express.static(__dirname + "/public"));

app.listen(8080);

## server.js
var port = 5000;
var app = require('express')();
var server = require('http').createServer(app);
var io = require('socket.io').listen(server);

console.log("Listening on port " + port);
server.listen(port);

// routing
app.get('/', function (req, res) {
  res.sendfile(__dirname + '/chat.html');
});

// usernames which are currently connected to the chat
var usernames = {};

io.sockets.on('connection', function (socket) {

        // when the client emits 'sendchat', this listens and executes
        socket.on('sendchat', function (data) {
                // we tell the client to execute 'updatechat' with 2 parameters
                io.sockets.emit('updatechat', socket.username, data);
        });

        // when the client emits 'adduser', this listens and executes
        socket.on('adduser', function(username){
                // we store the username in the socket session for this client
                socket.username = username;
                // add the client's username to the global list
                usernames[username] = username;
                // echo to client they've connected
                socket.emit('updatechat', 'SERVER', 'you have connected');
                // echo globally (all clients) that a person has connected
                socket.broadcast.emit('updatechat', 'SERVER', username + ' has connected');
                // update the list of users in chat, client-side
                io.sockets.emit('updateusers', usernames);
        });

        // when the user disconnects.. perform this
        socket.on('disconnect', function(){
                // remove the username from global usernames list
                delete usernames[socket.username];
                // update list of users in chat, client-side
                io.sockets.emit('updateusers', usernames);
                // echo globally that this client has left
                socket.broadcast.emit('updatechat', 'SERVER', socket.username + ' has disconnected');
        });
});
	<html>
	<head>
	<script src="/socket.io/socket.io.js"></script>
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>
	</head>
	<body>
	<script>
	var URL = window.location.protocol + "//" + window.location.host;
	console.log("Connecting to " + URL);
	var socket = io.connect(URL);

	// on connection to server, ask for user's name with an anonymous callback
	socket.on('connect', function(){
	// call the server-side function 'adduser' and send one parameter (value of prompt)
	socket.emit('adduser', prompt("What's your name?"));
	});

	// listener, whenever the server emits 'updatechat', this updates the chat body
	socket.on('updatechat', function (username, data) {
	$('#conversation').append('<b>'+username + ':</b> ' + data + '<br>');
	});

	// listener, whenever the server emits 'updateusers', this updates the username list
	socket.on('updateusers', function(data) {
	$('#users').empty();
	$.each(data, function(key, value) {
	$('#users').append('<div>' + key + '</div>');
	});
	});

	// on load of page
	$(function(){
	// when the client clicks SEND
	$('#datasend').click( function() {
	var message = $('#data').val();
	$('#data').val('');
	// tell server to execute 'sendchat' and send along one parameter
	socket.emit('sendchat', message);
	});

	// when the client hits ENTER on their keyboard
	$('#data').keypress(function(e) {
	if(e.which == 13) {
	$(this).blur();
	$('#datasend').focus().click();
	}
	});
	});

	</script>
	<div style="float:left;width:100px;border-right:1px solid black;height:300px;padding:10px;overflow:scroll-y;">
	<b>USERS</b>
	<div id="users"></div>
	</div>
	<div style="float:left;width:300px;height:250px;overflow:scroll-y;padding:10px;">
	<div id="conversation"></div>
	<input id="data" style="width:200px;" />
	<input type="button" id="datasend" value="send" />
	</div>

	</body>
	</html>
	{
	"name": "node-chat",
	"version": "0.0.1",
	"dependencies": {
	"express": "^4.4.1",
	"socket.io": "latest"
	},
	"engines": {
	"node": "0.8.x",
	"npm": "1.1.x"
	}
	}
	//Chat from http://michieldemey.be/blog/node-js-and-socket-io-a-basic-chat-application-using-websockets/
	var http = require('http'),
	httpProxy = require('http-proxy'),
	express = require('express');

	// create a server
	var app = express();
	var proxy = httpProxy.createProxyServer({ ws: true });

	// proxy HTTP GET / POST
	app.get('/socket.io/*', function(req, res) {
	console.log("proxying GET request", req.url);
	proxy.web(req, res, { target: 'http://localhost:8081'});
	});
	app.post('/socket.io/*', function(req, res) {
	console.log("proxying POST request", req.url);
	proxy.web(req, res, { target: 'http://localhost:8081'});
	});

	// Proxy websockets
	app.on('upgrade', function (req, socket, head) {
	console.log("proxying upgrade request", req.url);
	proxy.ws(req, socket, head);
	});

	// serve static content
	app.use('/', express.static(__dirname + "/public"));

	app.listen(8080);
	var port = 5000;
	var app = require('express')();
	var server = require('http').createServer(app);
	var io = require('socket.io').listen(server);

	console.log("Listening on port " + port);
	server.listen(port);

	// routing
	app.get('/', function (req, res) {
	res.sendfile(__dirname + '/chat.html');
	});

	// usernames which are currently connected to the chat
	var usernames = {};

	io.sockets.on('connection', function (socket) {

	// when the client emits 'sendchat', this listens and executes
	socket.on('sendchat', function (data) {
	// we tell the client to execute 'updatechat' with 2 parameters
	io.sockets.emit('updatechat', socket.username, data);
	});

	// when the client emits 'adduser', this listens and executes
	socket.on('adduser', function(username){
	// we store the username in the socket session for this client
	socket.username = username;
	// add the client's username to the global list
	usernames[username] = username;
	// echo to client they've connected
	socket.emit('updatechat', 'SERVER', 'you have connected');
	// echo globally (all clients) that a person has connected
	socket.broadcast.emit('updatechat', 'SERVER', username + ' has connected');
	// update the list of users in chat, client-side
	io.sockets.emit('updateusers', usernames);
	});

	// when the user disconnects.. perform this
	socket.on('disconnect', function(){
	// remove the username from global usernames list
	delete usernames[socket.username];
	// update list of users in chat, client-side
	io.sockets.emit('updateusers', usernames);
	// echo globally that this client has left
	socket.broadcast.emit('updatechat', 'SERVER', socket.username + ' has disconnected');
	});
	});