Share a cookie-based express-session middleware with socket.io. Works with express > 4.0.0 and socket.io > 1.0.0 and won't be backward compatible.
Help me notice errors or ask me for improvements creating an issue.
$ npm install express-socket.io-session
After every socket connection, you'll have socket.handshake.session.
That is the same session object
req.session you get in your route middleware when your app
Modifying session data inside socket.io event handlers
When inside express, you normally get to modify your session variables trusting that express-session saves them for you.
Invoke this module with an option of
autoSave:true in order for achieveing the
var session =secret: "my-secret"resave: truesaveUninitialized: true;var sharedsession = ;// Use express-session middleware for expressapp;// Use shared session middleware for socket.io// setting autoSave:trueio;
Sharing session data with a namespaced socket
Using your own custom cookie-parser instance
...var cookieParser = ;...io
$ npm install express socket.io express-session express-socket.io-session
var app =server =io = serversession =secret: "my-secret"resave: truesaveUninitialized: truesharedsession = ;// Attach sessionapp;// Share session with io socketsio;io;server;
var sharedsession = ;io;
sharedsession( express_session, [cookieparser], [options])
- express_session - This parameter is required and must be an express middleware function created with the express-session module that allows cookie-based sessions over Express.
- cookieparser - Optional. If you don't provide en instance created by cookie-parser, this module creates one for you with defaults.
- options.autoSave - Boolean - If true, session will be autosaved if it has been modified
inside your event handler. Default:
- options.autoSave - Boolean - If true, session will be autosaved if it has been modified inside your event handler. Default:
Although there are a couple of modules that allow you to share session objects between express and socket.io,
I wanted to be able to share the modules without affecting regular
These modules do the same work but with different approachs on initialization.
The MIT License (MIT)
Copyright (c) 2014-2015 osk <firstname.lastname@example.org>
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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