To use OAUTH you get 4 tokens IIRC. Two of them from the owner of the account, two from the owner of the service. With those 4 you can make requests to that service on behalf of that user.
Whenever you see "Facebook is requesting access to your email + user" it means it's exchanging tokens.....
search for oauth tokens, you'll find all you need to know.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.