How can I find the session Id when using express / connect and a session store?

Question

If a user is already logged in and tries to login again in a new instance I\'d like it to log out the other user instance. I don\'t want the same user to be logged in twice on m

Answer 1

For recent readers;

Connect middlewares are not included in Express since version 4.

So in order to have req.sessionID work you must do following:

1. Make sure you have cookie-parser abd express-session modules inside your package.json. If it's not added, add them:

npm install express-session --save
npm install cookie-parser --save

2. Be careful about the order while requiring them in your app.js file and add required configuration parameters.

var cookieParser = require('cookie-parser');
var session = require('express-session')
app.use(cookieParser());
app.use(session({
    secret: '34SDgsdgspxxxxxxxdfsG', // just a long random string
    resave: false,
    saveUninitialized: true
}));

3. Now you should be using req.sessionID and req.session.id.