30-Nov-2022
.
Admin
Hello Friends,
I am going to explain to you an example of how to set. you'll learn to get and delete cookie node js. We will look at examples of how to delete cookie node js with code examples. you'll learn how to set. Here, Creating a basic example of a get and destroy cookie javascript node.
Cookies are text files with small pieces of data — like a username and password — that is used to identify your computer as you use a computer network. Specific cookies known as HTTP cookies are used to identify specific users and improve your web browsing experience.
Step 1: Create Node Express js App
Execute the following command on the terminal to create the node js app:
mkdir my-app
cd my-app
npm init -y
Step 2: Install cookie-parser node module
Execute the following command on the terminal to install express and cookie parser modules:
npm install express cookie-parser --save
cookie-parser – cookie-parser is a middleware that parses cookies attached to the client request object. To use it, we will require it in our index. js file; this can be used the same way as we use other middleware.
Step 3: Create/Set Cookie Route
Create/set cookie route in node js + express app:
// SET COOKIE
app.get('/set-cookie', (req, res) => {
res.cookie('username', 'Webtutorials.ME', {
maxAge: 1000 * 60, // 1 min
httpOnly: true // http only, prevents JavaScript cookie access
});
// REDIRECT OT HOME
res.redirect('/');
});
Step 4: Get/Fetch Cookie Route
Get/fetch cookie route in node js + express app:
app.get('/', (req, res) => {
let cookieVal = req.cookies.username;
let show;
if (cookieVal) {
show = `Hi ${cookieVal} <br><a href="/delete-cookie">Delete Cookie</a>`;
} else {
show = `<a href="/set-cookie">Set Cookie</a><br>
<a href="/delete-cookie">Delete Cookie</a><br>`;
}
res.send(show);
});
Step 5: Delete Cookie Route
Delete/destroy cookie route in node js + express app:
// DELETE COOKIE
app.get('/delete-cookie', (req, res) => {
//DELETING username COOKIE
res.clearCookie('username');
// REDIRECT OT HOME
res.redirect('/');
});
Step 6: Create App.js and Create Routes For Cookie
Visit your node js app directory and create an app.js file. Then add the following get, set, and delete cookie code into your app.js file:
const express = require('express');
const cookieParser = require('cookie-parser');
const app = express();
// APPLYING AS MIDDLEWARE
app.use(cookieParser());
app.get('/', (req, res) => {
let cookieVal = req.cookies.username;
let show;
if (cookieVal) {
show = `Hi ${cookieVal} <br><a href="/delete-cookie">Delete Cookie</a>`;
} else {
show = `<a href="/set-cookie">Set Cookie</a><br>
<a href="/delete-cookie">Delete Cookie</a><br>`;
}
res.send(show);
});
// SET COOKIE
app.get('/set-cookie', (req, res) => {
res.cookie('username', 'Webtutorials.ME', {
maxAge: 1000 * 60, // 1 min
httpOnly: true // http only, prevents JavaScript cookie access
});
// REDIRECT OT HOME
res.redirect('/');
});
// DELETE COOKIE
app.get('/delete-cookie', (req, res) => {
//DELETING username COOKIE
res.clearCookie('username');
// REDIRECT OT HOME
res.redirect('/');
});
app.listen(3000, () => console.log('Your app listening on port 3000'));
Step 7: Start App Server
You can use the following command to start the node js app server:
//run the below command
npm start
after run this command open your browser and hit
http://127.0.0.1:3000/
I hope it can help you...
#Node JS