faye.js

// Start a server
var Faye = require('faye'),
server = new Faye.NodeAdapter({mount: '/'});
server.listen(8000);
 
// Create a client and subscribe to a channel
var client = new Faye.Client('http://localhost:8000/');
client.subscribe('/messages', function(message) { alert('Got a message: ' + message.text);
});
 
// Publish a message to a channel
client.publish('/messages', {
  text: 'Hello world'
});