exports.myFunction = functions.database.ref('users/{userId}') .onWrite((change, context) => { const userId = context.params.userId; const data = change.after.val(); console.log(`User ${userId} updated: ${data}`); });

public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); FirebaseAuth auth = FirebaseAuth.getInstance(); auth.signInWithEmailAndPassword("johndoe@example.com", "password123"); } }

import com.google.firebase.storage.FirebaseStorage;