authorization-npm-package v1.0.0

jwt-auth-helper

jwt-auth-helper is your go-to npm package for effortless JWT (JSON Web Token) authentication in Node.js applications. It simplifies token generation and verification, empowering you to secure your Express.js routes seamlessly.

Installation

Get started quickly by installing the package using npm:

npm install jwt-auth-helper

1. Import and Configure the Package:

In your Node.js application code, import the JwtAuthHelper class and configure it with your secret key and token expiration time:

const express = require('express'); const JwtAuthHelper = require('jwt-auth-helper');

// Set your secret key and token expiration time

const secretKey = 'your-secret-key';
const tokenExpiration = '1h'; // 1 hour
const authenticator = new JwtAuthHelper(secretKey, tokenExpiration);

const app = express();

Generate JWT Tokens:

Generate JWT tokens when authenticating users or for other relevant scenarios:

// Example: User authentication
app.post('/login', (req, res) => {
  // Authenticate the user, e.g., by checking their credentials
  const user = { userId: 123, username: 'exampleuser' };

  // Generate a JWT token for the authenticated user
  const token = authenticator.generateToken(user);

  // Return the token to the client
  res.json({ token });
});

Protect Routes with JWT Authentication:

Protect specific routes by applying the verifyToken middleware provided by the JwtAuthHelper package:

// Protected route - requires a valid JWT token
app.get('/protected-route', authenticator.verifyToken, (req, res) => {
  // The user is authenticated, and their information is available in req.user
  const userId = req.user.userId;
  res.json({ message: `Authenticated user with ID ${userId}` });
});

Start the Express.js Server:

Start your Express.js server to handle incoming HTTP requests:

const port = process.env.PORT || 3000;
app.listen(port, () => {
  console.log(`Server is running on port ${port}`);
});

Configuration Options

secretKey: Your secret key used for JWT token signing. tokenExpiration: The token expiration time (e.g., '1h' for 1 hour).

License

node-cron is under ISC License.