How do I handle user authentication in distributed systems?

How do I handle user authentication in distributed systems?

In distributed systems, you can use centralized authentication services like OAuth or JWT for secure user login.

What are the advantages of using JWT over traditional sessions?

JWTs are stateless, allowing for easier scalability and reducing server load since no session data is stored on the server.

Can you explain how OAuth works in this context?

OAuth allows users to grant third-party applications access to their information without sharing passwords, enhancing security.

What are some common pitfalls to avoid when implementing authentication?

Common pitfalls include not validating tokens properly, failing to use HTTPS, and not implementing proper session expiration.