Chapter 9
Understanding OAuth 2.0 — The Basics of Facebook Authentication
In This Chapter
- Learning about standards
- Understanding OAuth
- Implementing and integrating OAuth into your own environment
To retrieve any information about a user, you have to identify the user. Facebook currently uses OAuth 2.0 (although it's currently contemplating another revision of OAuth, called OpenID Connect, which could be the next version of the authentication system) as the way that it wants developers to identify users and obtain permission to make calls on behalf of those users. OAuth 2.0, an open standard for authorization, is intended to make development easier for you, the developer.
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