Using the Graph API
Now that we have a bit of code to work with, it is actually time to take a look at one of the main components of the Facebook platform, the Graph API. To understand the rhetoric behind a lot of the terminology used, it is worth pointing out that a lot of the concepts are based on the discipline of graph theory. Graph theory is a branch of discrete mathematics that studies the mathematics of relationship modeling between objects in a collection. These objects are referred to as nodes (or vertices) with connections between them named edges.
With the Graph API, the nodes are the photos, events, comments, friends, tags, groups, pages: anything to which Facebook gives developers access. Each of these objects has a unique identifier ...
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