Android Facebook Login unique key

Question

I try to make a Facebook-Login on my app! And it works, perfectly.

But i would like to get a String or Number that is unique for User and App. So that i can Authorize it on my own Server...

My actually way is:

• Andorid connect to Facebook
• Facebook send login facts to android
• Android send login state to my server

But for the last step i ned to get an unique value liek a number or String. And the UserAccesToken change everytime the user is loged in...

Thank you for your ideas

Answer 1

That's what the id field of the user obejct is for:

• https://developers.facebook.com/docs/graph-api/reference/v2.2/user#fields

The id of this person's user account. This ID is unique to each app and cannot be used across different apps