Saving user data in Cloud Firestore

newuser.java

  public static void addNewUser(String name, String email, String id, String type){
        Map<String, Object> newContact = new HashMap<>();
        newContact.put(NAME_KEY, name);
        newContact.put(EMAIL_KEY, email);
        newContact.put(ID_KEY, id);
        newContact.put(TYPE, type);
        db = FirebaseFirestore.getInstance();
        db.collection("Users").document(id).set(newContact)
                .addOnSuccessListener(new OnSuccessListener<Void>() {
                    @Override
                    public void onSuccess(Void aVoid) {
                        //Do something on success, maybe fire a successful analytics event
                    }
                })
                .addOnFailureListener(new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {

                         //Do something on failure, maybe fire a failure analytics event
                    }
                });
    }