Can't write to realtime firebase DB however it runs fine

Question

I'm trying to create a new child under the iamit child that is the newly created users ID. It registers the user to Authentication however not to the realtime DB, that stays the same as it is. The hierachry is Users->iamit->userID

I cant see what's wrong, I've followed the google guidelines and it should work. I have ".read": true, ".write": true in the rules.

It doesn't throw any errors and it doesn't crash when I register. It goes to the next activity and the toast saying user created with the ID shows and the user shows up in the authentication section.

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.firestore.DocumentReference;
import com.google.firebase.firestore.FirebaseFirestore;

import java.util.HashMap;
import java.util.Map;


public class confirmineed extends Activity {
 public static final String TAG = "TAG";
 String firstname,lastname,number,emailtxt,psw, userID;


 FirebaseAuth fAuth;
 ProgressBar progressBar;
 FirebaseFirestore fStore;
 FirebaseDatabase database;
 Button signupbtn;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_confirmineed);
     Bundle bundle = getIntent().getExtras();
     assert bundle != null;

     firstname = bundle.getString("firstname");
     lastname = bundle.getString("lastname");
     number = bundle.getString("Pnumber");
     emailtxt = bundle.getString("email");
     psw = bundle.getString("psw");


     TextView name = (TextView) findViewById(R.id.name);
     final TextView pnumber = (TextView) findViewById(R.id.pnumber);
     TextView email = (TextView) findViewById(R.id.email);
     TextView role = (TextView) findViewById(R.id.role);
     name.setText(firstname + " " + lastname);
     pnumber.setText(number);
     email.setText(emailtxt);
     role.setText("I provide I.T. Support");


     signupbtn = findViewById(R.id.signupbtn);
     fAuth = FirebaseAuth.getInstance();
     fStore = FirebaseFirestore.getInstance();
     database = FirebaseDatabase.getInstance();
     progressBar = findViewById(R.id.progressBar2);
     progressBar.setVisibility(View.GONE);

     signupbtn.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View v) {

             progressBar.setVisibility(View.VISIBLE);
             // register the user in firebase

             fAuth.createUserWithEmailAndPassword(emailtxt,psw).addOnCompleteListener(new OnCompleteListener<AuthResult>() {

                 @Override
                 public void onComplete(@NonNull Task<AuthResult> task) {

                     if(task.isSuccessful()){
                         userID = fAuth.getCurrentUser().getUid();
                         Toast.makeText(confirmineed.this, "User Created." + userID, Toast.LENGTH_SHORT).show();

                         DocumentReference documentReference = fStore.collection("users").document(userID);
                         Map<String,Object> user = new HashMap<>();
                         documentReference.set(user).addOnSuccessListener(new OnSuccessListener<Void>() {
                             @Override
                             public void onSuccess(Void aVoid) {

                                 String user_id = fAuth.getCurrentUser().getUid();
                                 DatabaseReference myref = database.getReference().child("Users").child("iamit").child(user_id);
                                 myref.setValue(true);

                                 Log.d(TAG, "onSuccess: user Profile is created for "+ userID);

                             }
                         }).addOnFailureListener(new OnFailureListener() {
                             @Override
                             public void onFailure(@NonNull Exception e) {
                                 Log.d(TAG, "onFailure: " + e.toString());
                             }
                         });
                         startActivity(new Intent(getApplicationContext(),iamitlogin.class));

                     }else {
                         Toast.makeText(confirmineed.this, "Error ! " + task.getException().getMessage(), Toast.LENGTH_SHORT).show();
                         progressBar.setVisibility(View.GONE);
                     }
                 }
             });
         }


     });


 }


 public void onBackPressed(View view){
     Intent sendback = new Intent(this, signupend.class);
     sendback.putExtra("firstname", firstname);
     sendback.putExtra("lastname", lastname);
     sendback.putExtra("Pnumber", number);
     sendback.putExtra("email", emailtxt);
     sendback.putExtra("psw", psw);
     startActivity(sendback);
     overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right);
 };


}

Answer 1

Put DatabaseReference myref = database.getReference().child("Users").child("iamit").child(user_id); myref.setValue("true"); out of successlistener. You put it in read section