title: How to provide Firestore Authentication in Android?
body: <p>I am making an Android Application to manage finances. Each user has their own details under the collection <code>users</code> in my database <code>financier</code>. I am not using any type of Sign-In method. It is a custom sign up with my custom form.  </p>
  
  <p>For now, I have been changing the database rules to accept any request before a given date as the application is under development. </p>
  
  <p>I want the users to operate under my credentials. I am not thinking of publishing this application anywhere, but I want the application to be authenticated, like using the <code>service-account-key.json</code> in NodeJs.</p>
  
  <p>If I put the JSON file in my project, will it be exported at the time of exporting the APK? If so, will any user be able to get the credentials to my database by taking out the JSON file?</p>