I’ve looked a lot into the Facebook Graph API and I couldn’t find a document that explains how to check if a user is part of a Facebook App’s Administrators, Developers or Testers role.
Is there a way to get that information through REST API/Facebook Graph using JavaScript?
This query will fetch a list of all the roles associated with the user:
If you application access token, then you can fetch a list of all developers and their roles as such:
More information can be found at https://developers.facebook.com/docs/reference/fql/developer/.