_navigate.dart

_navigate(Store<AppState> store, action, NextDispatcher next) {
 if (action is NavigatePopAction && navigatorKey.currentState.canPop()) {
   navigatorKey.currentState.pop();
 } else if (action is NavigatePushAction) {
   if (store.state.route.last != action.routeName) {
     navigatorKey.currentState.pushNamed(action.routeName);
   }
 }
 next(action); //This need to be after name checks
}