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How do you implement authentication in Web API?

Junior ASP.NET Web API

Answer

Authentication verifies user identity in Web API.

Common implementations:

  • JWT Bearer Tokens – stateless authentication for SPA and mobile apps.
  • OAuth2 / OpenID Connect – external identity providers.
  • Cookie authentication – mainly for browser-based apps.

Configured using AddAuthentication() and UseAuthentication().

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Source: SugharaIQ

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