Introduction to Facebook graph Application Program Interface( API).
API is a consolidation of protocols, set of routines and tools for developing software application. Ideally Facebook recognizes the relationship among the entities as a "Social Graph". In Facebook, an entity can be a person, place, event or object that is relevant to a given system and an attribute is a property , characteristic of the entity. As shown in the diagram, Location is an entity and country, state, location id are the attributes. Based on the registered user...