How to best structure an Express V4.11+ project with Socket.IO?
A lot of info about socket.io and express are out of date due to their popularity and fast changing pace.
This is what I ended up doing, by no means it's the best.
I would create a sockets.js at the same level as app.js, so you can separate all socket.io initialization logic.
var sockets = {};sockets.init = function (server) { // socket.io setup var io = require('socket.io').listen(server); io.sockets.on('connection', function (socket) { console.log('socket connected'); // other logic });}module.exports = sockets;And in your bin/www file, you can initialize socket.io like this:
#!/usr/bin/env nodevar debug = require('debug')('yourProject');var app = require('../app');var sockets = require('../sockets')app.set('port', process.env.PORT || 3000);var server = app.listen(app.get('port'), function() { debug('Express server listening on port ' + server.address().port);});sockets.init(server);