title: How can I create a user with multiple attributes in Firebase with Swift?
body: <p>I am so new to Firebase (a couple of hours only) and still trying to absorb most of its concepts. I followed the documentation but still found no direct answer to my question. I have a registration form in my app...it takes username, name, mobile, etc. I used the firebase createUser function but that only creates a user with email and password. </p>
  
  <p>How can I create a user with multiple attributes (name, mobile, username, etc)? Later on, I would like to query a username and get all associated attributes with them so to do that I need to have the attributes. </p>
  
  <p>P.S. coming from Parse, this is not as straightforward. </p>