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What are the differences between JWT and OAuth in authentication?

Explain the key differences and use cases for JWT (JSON Web Tokens) and OAuth (Open Authorization) in a full stack application and how they relate to each other.

Asked at Google, Facebook, Amazon

#authentication#authorization#jwt#oauth

Answer

  • JWT is a token format used for stateless authentication.
  • OAuth is a protocol that allows third-party applications to access user data without sharing credentials.
  • JWT is often used within OAuth as a method to carry information about a user.
  • Use JWT for APIs that require frequent interactions. Use OAuth for granting access to external applications.

Source: custom

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