title: How to allow only my app to access firebase without a login?
body: <p>I am storing my app's data on Firebase and this being my first project on Firebase is proving to be much more difficult than I thought. I have gone through the <a href="https://firebase.google.com/docs/auth/android/manage-users" rel="noreferrer">official documentation</a> and it says that we can login a user with their email and password or use other login options like Google or Facebook etc. However I don't want user's to login to my application but only read and write data to firebase <b>if they are using my app</b>. Right now I am using public rules for my firebase but then anyone with a reference to my firebase URL can read and write to the database. How do I overcome this?</p>
  
  <p>Thanks in advance.</p>