What are the best practices for authentication in Node.js with Express?

What are the best practices for authentication in Node.js with Express?

Some best practices include using JWT for token-based authentication, hashing passwords with bcrypt, and implementing rate limiting.

How can I securely store user passwords?

You should always hash passwords using a strong algorithm like bcrypt before storing them in your database.

What is JWT and why should I use it?

JWT, or JSON Web Token, is a compact, URL-safe means of representing claims to be transferred between two parties. It's widely used for authentication.

Can you explain how to implement rate limiting?

You can use middleware like express-rate-limit to limit repeated requests to public APIs and protect against brute-force attacks.