10 Server-Side Authentication and OpenSocial Integration

Chapter 9, “An Overview of Google Friend Connect,” explored the Google Friend Connect JavaScript API and OpenSocial API for integrating social features directly into websites. However, what if you already have a login system and want to extend it to accept Google Friend Connect logins? Because Google Friend Connect supports the OpenSocial RESTful and RPC protocols, it is possible to access OpenSocial data from a website or any other Internet-enabled device outside of a gadget or a standard web page. With authentication and secure server-to-server communication handled through OAuth, and the fcauth authentication cookie or the security token for gadgets provided by Google Friend Connect, ...

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