socket.io Express routes

socket.ioExpress.md

Create socket.io middleware

Include the following code in your app.js module (other standard Express module dependancies and middleware left out for brevity):

var express = require('express');
var http = require('http');
var io = require('socket.io');
var routes = require('./routes/index');

var app = express();

/**
 * Create HTTP server.
 */

var server = http.createServer(app);

/**
 * Setup custom app middleware
 */

/* setup socket.io */
io = io(server);
app.use(function(req, res, next) {
  req.io = io;
  next();
});
io.on('connection', function(socket) {
  //log.info('socket.io connection made');
  console.log('socket.io connection made');
});

app.use('/', routes);

server.listen('3000');

You can now emit socket.io events from any route handler (./routes/index in this example):

var express = require('express');
var router = express.Router();

router.post('/', function(req, res, next) {
  req.io.emit('some_event');
  //do some stuff
  req.io.emit("some_other_event"); //we did some stuff - emit a related event
});

module.exports = router;