title: Fetch all users from Firebase with Facebook login - swift
body: <p>My app is using Facebook login only at the moment. I am trying to build a search function using the <code>UISearchBar</code>.</p>
  
  <p>So my question is: Is it in any way possible to fetch all users from the Firebase database into an array? Maybe even get their <code>UserID</code> as well??</p>
  
  <p>If you want to see any piece of code let me know, I just did not think it was relevant to this question :-)</p>