What are some popular JWT libraries for different programming languages?

What are some popular JWT libraries for different programming languages?

There are several popular JWT libraries available for various programming languages. For example, in JavaScript, you can use 'jsonwebtoken'. In Python, 'PyJWT' is widely used. For Java, 'jjwt' is a good choice. Do you need recommendations for a specific language?

Yes, I'm working with Node.js. What should I use?

For Node.js, 'jsonwebtoken' is the most popular library. It's easy to use and well-documented. You can install it via npm with the command 'npm install jsonwebtoken'. Would you like to see a code example?

Yes, please provide a simple example of how to use it.

Sure! Here's a simple example:

const jwt = require('jsonwebtoken');

// Create a token
const token = jwt.sign({ userId: 123 }, 'your_secret_key', { expiresIn: '1h' });

// Verify a token
jwt.verify(token, 'your_secret_key', (err, decoded) => {
  if (err) {
    console.log('Token is invalid');
  } else {
    console.log('Decoded payload:', decoded);
  }
});

This code creates a JWT and then verifies it. Let me know if you have any questions!