title: How do I search for a username in new Firebase?
body: <p>I'm trying to search for a username. Would like to search "alan" and get the id associated with it.</p>
  
  <p>This is my database:
  <a href="https://i.stack.imgur.com/FIAV7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FIAV7.png" alt="enter image description here"></a></p>