Session Management using express-session Module in Node.js

28 Apr, 2020
Session management can be done in node.js by using the express-session module. It helps in saving the data in the key-value form. In this module, the session data is not saved in the cookie itself, just the session ID.
Installation of express-session module:
You can visit the link Install express-session module. You can install this package by using this command.npm install express-sessionAfter installing express-session you can check your express-session version in command prompt using the command.npm version express-sessionAfter that, you can create a folder and add a file for example index.js, To run this file you need to run the following command.node index.js
You can visit the link Install express-session module. You can install this package by using this command.npm install express-session
npm install express-session
After installing express-session you can check your express-session version in command prompt using the command.npm version express-session
npm version express-session
After that, you can create a folder and add a file for example index.js, To run this file you need to run the following command.node index.js
node index.js
Filename: index.js
const express = require("express")const session = require('express-session')const app = express()    // Port Number Setupvar PORT = process.env.port || 3000   // Session Setupapp.use(session({      // It holds the secret key for session    secret: 'Your_Secret_Key',      // 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: true}))   app.get("/", function(req, res){           // req.session.key = value    req.session.name = 'GeeksforGeeks'    return res.send("Session Set")})   app.get("/session", function(req, res){       var name = req.session.name    return res.send(name)       /*  To destroy session you can use        this function      req.session.destroy(function(error){        console.log("Session Destroyed")    })    */})    app.listen(PORT, function(error){    if(error) throw error    console.log("Server created Successfully on PORT :", PORT)})
Steps to run the program:
The project structure will look like this:Make sure you have install express and express-session module using following commands:npm install expressnpm install express-sessionRun index.js file using below command:node index.jsNow to set your session, just open browser and type this URL:http://localhost:3000/Till now, you have set session and to see session value, type this URL:http://localhost:3000/session
The project structure will look like this:
Make sure you have install express and express-session module using following commands:npm install expressnpm install express-session
npm install express
npm install express-session
Run index.js file using below command:node index.js
node index.js
Now to set your session, just open browser and type this URL:http://localhost:3000/
http://localhost:3000/
Till now, you have set session and to see session value, type this URL:http://localhost:3000/session
http://localhost:3000/session
So this is how you can do session management in node.js using the express-session module.
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