How to make Facebook authorization for mobile app & WEB server?

Question

Django

• there is a server part with a database where users and other data and API are stored;
  
• there is a mobile application that authorizes the user through the Facebook API.
  

Question : how to inform the server that a new user (token, soap box, full name, etc.) has registered? and how to authorize it later
PS: IMHO, there must be some kind of API from Facebook or notifications to the server.

Answer 1

django-allauth. The battery is perfect for you. IMHO.
New user logged in - entry into the database depending on the rights. At a minimum, there is a name, a surname, a mail, and the social network itself (google +, fb, vk, ok, twitter, etc.)