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All the docs I've found describe how to read and write data to Firebase Realtime Database when setting the privacy of the database to public, like here:

https://firebase.google.com/docs/database/android/read-and-write

Firebase Permission denied Error

How do I pass the Firebase user when I already have the authentication up and running to be validated when I need to read the data when my rules are like this:

 {
   "rules": {
    ".read": "auth != null",
    ".write": "auth != null"
    }
 }

When I try like this:

   reference.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            String value = dataSnapshot.getValue(String.class);
            Log.d("VERBOSE: ", "Value is: " + value);
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {
            Log.e("ERROR: ", "Failed to read database.", databaseError.toException());
        }
    });

I always get the exception 

com.google.firebase.database.DatabaseException: Firebase Database error: Permission denied

Best regards

Welder Marcos
  • 129
  • 12

1 Answers1

1

You don't need to pass anything as long as the user is successfully authenticated. Ensure you have authenticated the user using Firebase's Authentication API before calling Realtime Database.

Peter Hägg
  • 158
  • 1
  • 9