How do I implement JWT authentication in a MERN app?

How do I implement JWT authentication in a MERN app?

To implement JWT authentication in a MERN app, you need to set up your backend with Node.js and Express to handle user authentication.

What libraries do I need for the backend?

You'll need libraries like jsonwebtoken for creating and verifying tokens, and bcrypt for hashing passwords.

How do I store the JWT on the frontend?

You can store the JWT in local storage or session storage on the frontend, and include it in the headers of your requests.

What about protecting routes in my React app?

You can create a higher-order component (HOC) or use React Router's PrivateRoute to protect your routes based on authentication.