Simple socket.io example
| var http = require('http'), | |
| fs = require('fs'), | |
| // NEVER use a Sync function except at start-up! | |
| index = fs.readFileSync(__dirname + '/index.html'); | |
| // Send index.html to all requests | |
| var app = http.createServer(function(req, res) { | |
| res.writeHead(200, {'Content-Type': 'text/html'}); | |
| res.end(index); | |
| }); | |
| // Socket.io server listens to our app | |
| var io = require('socket.io').listen(app); | |
| // Send current time to all connected clients | |
| function sendTime() { | |
| io.sockets.emit('time', { time: new Date().toJSON() }); | |
| } | |
| // Send current time every 10 secs | |
| setInterval(sendTime, 10000); | |
| // Emit welcome message on connection | |
| io.sockets.on('connection', function(socket) { | |
| socket.emit('welcome', { message: 'Welcome!' }); | |
| socket.on('i am client', function() { | |
| console.log('received a message from the client.'); | |
| }); | |
| }); | |
| app.listen(3001); |
| <!doctype html> | |
| <html> | |
| <head> | |
| <script src='http://code.jquery.com/jquery-1.7.2.min.js'></script> | |
| <script src='http://localhost:3001/socket.io/socket.io.js'></script> | |
| <script> | |
| var socket = io.connect('http://localhost:3001'); | |
| socket.on('welcome', function(data) { | |
| $('#messages').append('<li>' + data.message + '</li>'); | |
| socket.emit('i am client', {data: 'foo!'}); | |
| }); | |
| socket.on('time', function(data) { | |
| console.log(data); | |
| $('#messages').append('<li>' + data.time + '</li>'); | |
| }); | |
| socket.on('error', function() { console.error(arguments) }); | |
| socket.on('message', function() { console.log(arguments) }); | |
| </script> | |
| </head> | |
| <body> | |
| <ul id='messages'></ul> | |
| </body> | |
| </html> |
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