Interfacing with the Facebook API

I'm hoping someone can guide me in interfacing with the Facebook API. The Facebook Developer Wiki says it uses simple HTTP GET and POST calls, and that it uses a REST-like interface. I'm just lost as to how to format such calls and which classes to use. Is it some kind of XML?

This is very easy, to deal with such web APIs using Qt.
If you wanna go with REST method, you should use QHTTP class to send GET, POST methods.
And for XML parsing, you have to use Qt's Powerful XML module.

Any advice as to what the schema is?