Oauth - Role


OAuth defines four roles:

The interaction between this roles is described in the flow.


An end-user (resource owner) can grant a printing service (client) access to her protected photos stored at a photo-sharing service (resource server), without sharing her username and password with the printing service.

Instead, she authenticates directly with a server trusted by the photo-sharing service (authorization server), which issues the printing service delegation-specific credentials (access token).

Documentation / Reference

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