Facebook Graph API可以理解为一个可以访问Facebook数据的Web服务。该API提供了对人员，相册，事件等等Facebook对象以及这些对象之间诸如朋友，标签，分享内容等等连接之间的访问。
当您输入一个URL后，会返回一个Json对象
对象的格式参考http://developers.facebook.com/docs/reference/api/。
你可以用同样的方式访问Facebook对象
- Users: https://graph.facebook.com/btaylor (Bret Taylor)
- Pages: https://graph.facebook.com/cocacola (Coca-Cola page)
- Events: https://graph.facebook.com/251906384206 (Facebook Developer Garage Austin)
- Groups: https://graph.facebook.com/2204501798 (Emacs users group)
- Applications: https://graph.facebook.com/2439131959 (the Graffiti app)
- Status messages: https://graph.facebook.com/367501354973 (A status message from Bret)
- Photos: https://graph.facebook.com/98423808305 (A photo from the Coca-Cola page)
- Photo albums: https://graph.facebook.com/99394368305 (Coca-Cola's wall photos)
- Videos: https://graph.facebook.com/614004947048 (A Facebook tech talk on Tornado)
- Notes: https://graph.facebook.com/122788341354 (Note announcing Facebook for iPhone 3.0)
你也可以用https://graph.facebook.com/ID/CONNECTION_TYPE访问这些对象的其他信息
- Friends: https://graph.facebook.com/me/friends
- News feed: https://graph.facebook.com/me/home
- Profile feed (Wall): https://graph.facebook.com/me/feed
- Likes: https://graph.facebook.com/me/likes
- Movies: https://graph.facebook.com/me/movies
- Books: https://graph.facebook.com/me/books
- Notes: https://graph.facebook.com/me/notes
- Photos: https://graph.facebook.com/me/photos
- Videos: https://graph.facebook.com/me/videos
- Events: https://graph.facebook.com/me/events
- Groups: https://graph.facebook.com/me/groups