javascript - Node JS push server send/receive -

i trying set node js server push notifications browser app. have basic example working, wondering how send data server client on handshake.

i need send server user id, when notification comes in them, can routed user.

my server looks this

var app = require('http').createserver(handler)   , io = require('socket.io').listen(app)   , fs = require('fs');  app.listen(8000);  function handler ( req, res ) {     res.writehead( 200 );     res.end('node working'); };  io.sockets.on( 'connection', function ( socket ) {    socket.volatile.emit( 'notification' , "blah" ); }); 

and client looks this

 var socket = io.connect('http://localhost:8000');    socket.on('notification', function (data) {     //prints data here   }); 

in socket.io, emit other event handler (e.g. jquery's .on('click'...)); declare event , send data. on server, add .on('event', ...) catch request , process it.

the socket.io front page shows example server:

var io = require('socket.io').listen(80);  io.sockets.on('connection', function (socket) {   socket.emit('news', { hello: 'world' });   socket.on('my other event', function (data) {     console.log(data);   }); }); 

and client:

<script src="/socket.io/socket.io.js"></script> <script>   var socket = io.connect('http://localhost');   socket.on('news', function (data) {     console.log(data);     socket.emit('my other event', { my: 'data' });   }); </script> 

it sounds part you're looking socket.emit portion.