public DBRefenece createRootRef(MonoBehaviour mb, string roomId)
        {
            string root = FireConfig.getInstance().getRootNode();

            Debug.Log("root=" + root + " rid=" + roomId);
            return(new FireDBRefence(mb, FirebaseDatabase.DefaultInstance.GetReference(root).Child(roomId)));
        }
        public void createConnect()
        {
            FirebaseApp app     = FirebaseApp.DefaultInstance;
            string      fireUrl = FireConfig.getInstance().getFirebaseUrl();

            app.SetEditorDatabaseUrl(fireUrl);
            if (app.Options.DatabaseUrl != null)
            {
                app.SetEditorDatabaseUrl(app.Options.DatabaseUrl);
            }
        }