OAuth 2.0 Authentication

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OAuth stands for Open Authentication

OAuth 1.0 was designed only for the web Browsers which was enhanced to support apps, APIs, non browser apps etc in OAuth 2.0.

  • Users and Credentials are stored in a Authentication server eg. Google

Credentials are made of Scope and Claim

  • Scope: Information that can be accessed
  • Claim: Set of key-value pairs

User authenticates against an auth server Only ONCE

  • Using the same Authentication Token all Microservices that use the same Auth Server can be accessed.(if its allowed)

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