Actually you are only creating a new redis client for every connection if you are instantiating the client on the “connection” event. What I prefer to do when creating a chat system is to create three redis clients. One for publishing, subscribing, and one for storing values into redis. for example: var socketio = require(“socket.io”) … Read more
Edit: In Socket.IO 1.0, middleware is now used. Authorization can be done like so: io.use(function(socket, next) { var handshake = socket.request; next(); }); If you were to need to reject the socket, just pass an error object to the next() callback. The same thing can be done with namespaces: io.of(‘/namespace’).use(function(socket, next) { var handshake = … Read more
Looks like you have installed socket.io in a different location to your current path. Either install globally like below: npm install -g socket.io Or reference the location you’ve installed to: var io = require(‘../lib/socket.io’);
You should use http module: var http = require(‘http’); var express = require(‘express’), app = module.exports.app = express(); var server = http.createServer(app); var io = require(‘socket.io’).listen(server); //pass a http.Server instance server.listen(80); //listen on port 80 //now you can use app and io More details you can find in a documentation: http://socket.io/docs/#using-with-express-3/4
The third argument to the emit method accepts a callback that will be passed to the server so that you can call in acknowledgement with any data you wish. It’s actually really convenient and saves the effort of having paired call-response events. I’m updating my answer with some code that I just tested. First on … Read more
The checked answer is invalid as of Jul 3rd 2012. Read by yourself this tutorial on NetTuts. This tutorial uses node.js and socket.io to upload a file.
I faced exactly the same issue. I did not see the ERR_CONNECTION_REFUSED in socket.io@~0.9. The error surfaced after I upgraded socket.io to 1.3. I solved it by simply removing the URL from the client side constructor: Change var socket = io(‘http://localhost’); To var socket = io(); As the socket.io tutorial showed: http://socket.io/get-started/chat/
I found the answer for anyone who gets immensely confused by the horrible lack of documentation of socket.io. You cannot source /socket-lib/socket.io.js, you must source http://yourwebsite.com:12345/socket.io/socket.io.js. The server automatically does the rest for you.
The short answer: io.sockets.adapter.rooms I analysed io: I got the following output: { server: { stack: [ [Object], [Object], [Object], [Object], [Object], [Object] ], connections: 3, allowHalfOpen: true, watcher: { host: [Circular], callback: [Function] }, _events: { request: [Function], connection: [Function: connectionListener], listening: [Object], upgrade: [Object] }, httpAllowHalfOpen: false, cache: {}, settings: { home: “https://stackoverflow.com/”, … Read more