The \"old\" Facebook Graph API had a \"username\" field which could be used to create a human-readable profile URL. My username for example is \"sebastian.trug\" which resul
@Simon Cross - It being deprecated is documented, yes. That is not the question, the question is how to get it and -furthermore- I wonder why Facebook has made such a terrible choice and removed the username. Hundreds of applications that rely on the username to create accounts on their service will be broken.
@user3596238 - You can stick with the V.1 API which will be around until the end of April 2015, by far not the best solution but Facebook might be irrelevant by then anyway. https://developers.facebook.com/docs/apps/changelog
Solution: ask the user for a username besides the actual Facebook login? - In my opinion, that makes the Facebook login completely pointless anyway.