Check out example codes for "how to go through child in firebase Unity". It will help you in understanding the concepts better.

Code Example 1

void InitializeFirebase() {


    FirebaseApp app = FirebaseApp.DefaultInstance;
    app.SetEditorDatabaseUrl ("https://slol.firebaseio.com/");

    FirebaseDatabase.DefaultInstance
        .GetReference ("Products").OrderByChild ("category").EqualTo("livingroom")
        .ValueChanged += (object sender2, ValueChangedEventArgs e2) => {
        if (e2.DatabaseError != null) {
            Debug.LogError (e2.DatabaseError.Message);
        }


        if (e2.Snapshot != null && e2.Snapshot.ChildrenCount > 0) {

            foreach (var childSnapshot in e2.Snapshot.Children) {
                var name = childSnapshot.Child ("name").Value.ToString (); 

                text.text = name.ToString();
                Debug.Log(name.ToString());
                //text.text = childSnapshot.ToString();

            }

        }

    };
}

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