A simple and minimalistic JWT authentication middleware for Node.js/Express applications. Easily integrate JWT authentication into your app with just a few lines of code.

Features: -

1. JWT Authentication: Validates JWT token from the Authorization header.

2. Easy to Use: Just include the middleware in your Express routes.

3. Error Handling: Proper error handling for missing or invalid tokens.

Installation : - npm install jwt-boilerplate

Example code : -

const express = require('express'); const jwtAuth = require('jwt-boilerplate');

const app = express();

const secretKey = 'your_secret_key';

app.use('/protected-route', jwtAuth(secretKey), (req, res) => { res.status(200).json({ message: 'You have access to this route' }); });

app.listen(3000, () => { console.log('Server is running on port 3000'); });

Working: -

1 . jwt Token: the client sends a JWT token in the authorization header

ex - Authorization: Bearer <JWT_Token>

2 . The middleware will check for the token, verify it using your secret key, and attach the decoded token to req.user if it's valid.