Get Facebook userID from access token
Is it possible to get the userID using the access token?
I've seen some answers say https://graph.facebook.com/me?access_token=abc but I think this is wrong as this gets the details of the currently logged in user, not the user in the access token.
The currently logged in user is the user in the access token - if you have a user access token, you're acting on behalf of that user.
The two shortcuts are /me and /app which are shortcuts for the user of that access token, and the app of that access token