What are the different authentication methods in TypeScript with Express?

What are the different authentication methods I can use in a TypeScript Express application?

In a TypeScript Express application, you can use several authentication methods such as JWT (JSON Web Tokens), OAuth, and session-based authentication.

Can you explain how JWT works for authentication?

Sure! JWT involves creating a token that is signed and sent to the client after successful login. The client then includes this token in the header of subsequent requests to access protected routes.

What about OAuth? How does it differ from JWT?

OAuth is an authorization framework that allows third-party services to exchange information without sharing credentials. Unlike JWT, which is a token format, OAuth is a protocol that can use JWT as a token type.

Are there any libraries you recommend for implementing these methods?

Yes! For JWT, you can use 'jsonwebtoken' and for OAuth, 'passport' is a popular choice. Both work well with TypeScript and Express.