OAuth vs Session Authentication: What's the Difference?

What is the difference between OAuth and session authentication?

OAuth is an authorization framework that allows third-party services to exchange information without sharing credentials, while session authentication involves maintaining a user session on the server after login.

When should I use OAuth instead of session authentication?

Use OAuth when you need to allow users to access your application using their credentials from another service, like Google or Facebook. Session authentication is better for traditional web applications where you manage user sessions directly.

Are there any security concerns with using OAuth?

Yes, OAuth can introduce security risks if not implemented correctly, such as token leakage or improper scope management. It's essential to follow best practices.

Can I use both OAuth and session authentication together?

Absolutely! You can use OAuth for initial authentication and then create a session for the user in your application for subsequent requests.