Session and Cookies in Node.js: Part 1 - Understanding the Basics with Sample Code

Chapters
00:00 Introduction to Cookies and Session
04:12 Write a Simple Session code
25:52 Demonstrating Session

Code Explanation:
1.The code imports necessary modules such as express, body-parser, express-session, and cookie-parser.
2.It initializes an express app, and sets a variable for one hour in milliseconds.
3.It sets up the express-session middleware, which creates a session object for each user and stores it on the server. This middleware uses a secret to sign the session ID cookie, sets the maximum age of the cookie, and prevents session data from being unnecessarily resaved on the server.

[bitbybitofficial]

app.js Code:

// jshint es version :6

require('dotenv').config();

const express = require("express");
const bodyParser = require("body-parser");
const session = require("express-session");
const cookieParser = require("cookie-parser");

const app = express();
const oneHour = 1000 * 60 *60;
app.use(session({
secret : process.env.SECRET,
saveUninitialized: true,
cookie:{
maxAge : oneHour
},
resave: false
}));



app.use(bodyParser.json());

app.use(cookieParser());

const Port = process.env.PORT;

app.listen(Port, function(){
console.log(`Sever is up and running on port :${Port}`);
})

app.get("/", function(req, res){
res.sendFile(__dirname + '/index.html');
});


app.post('/', function(req, res){

let UserName = req.body.uname;
let password =req.body.psw;

req.session.loggedin = true;
req.session.UserName = UserName;
req, session.password = password;

res.send("Logged In");
res.end();

});

app.get('/logout', function(req, res){
req.session.destroy();
res.send("session Destroyed")
})