How to expire session after 1 min of inactivity in express-session of Express.js ?

In this article, we will see how to expire the session after 1 min of inactivity in express-session of Express.js.

Prerequisites

• Installation of Node.js on Windows
• To set up Node Project in Editor see here.

Requires Modules:

npm install express
npm install express-session

Call API:

var session = require('express-session')

To expire the session after 1 min of inactivity in the express-session of Express.js we use expires: 60000 in the middleware function.

Project Structure:

The below example illustrates the above approach:

Example:

Filename: app.js

Javascript

// Call Express Api.
const express = require('express'),

    // Call express Session Api.
    session = require('express-session'),

    app = express();

// Session Setup
app.use(
    session({

        // It holds the secret key for session
        secret: "I am girl",

        // Forces the session to be saved
        // back to the session store
        resave: true,

        // Forces a session that is "uninitialized"
        // to be saved to the store
        saveUninitialized: false,
        cookie: {

            // Session expires after 1 min of inactivity.
            expires: 60000
        }
    })
);

// Get function in which send session as routes.
app.get('/session', function (req, res, next) {

    if (req.session.views) {

        // Increment the number of views.
        req.session.views++

        // Session will expires after 1 min
        // of in activity
        res.write(
'
<p> Session expires after 1 min of in activity: '
+ (req.session.cookie.expires) + '</p>
')
        res.end()
    } else {
        req.session.views = 1
        res.end(' New session is started')
    }
})

// The server object listens on port 3000.
app.listen(3000, function () {
    console.log("Express Started on Port 3000");
});

Steps to run the program:

Run the index.js file using the below command:

node app.js

Now to set your session, just open the browser and type this URL :

http://localhost:3000/session 

Output: After 1 min of inactivity it will start the new session, old session is expired.