What are the differences between authentication methods in MEAN stack?

What are the differences between authentication methods in MEAN stack?

In the MEAN stack, common authentication methods include JWT, OAuth, and session-based authentication. JWT is stateless and allows for scalability, while OAuth is great for third-party integrations. Session-based authentication is more traditional but can be less scalable.

Can you explain how JWT works in the MEAN stack?

Sure! JWT, or JSON Web Token, is a compact, URL-safe means of representing claims to be transferred between two parties. In the MEAN stack, after a user logs in, the server generates a JWT and sends it back to the client. The client stores this token and includes it in the header of subsequent requests to authenticate.

What are the security concerns with using JWT?

Some security concerns with JWT include token expiration, secure storage of the token, and the risk of token theft. It's important to use HTTPS to prevent interception and to implement proper token expiration and refresh mechanisms.

How does OAuth differ from JWT?

OAuth is an authorization framework that allows third-party services to exchange information without sharing credentials. JWT can be used within OAuth as a token format, but OAuth itself is more about granting access permissions rather than just authentication.