dart to get fetch pagination content from django backend with 'next'

fetch_pagination_content.dart

Future<void> updateIfHasUpdate() async {
    final String dataFirstFetchUri = "https://sample.django.backend.api/"
    final List updatableQuestions = await _getUpdatableQuestions(dataFirstFetchUri);
  }


  Future<List<dynamic>> _getUpdatableQuestions(nextUri) async{
    // THIS FUNCTIONS LOOP THROUGH PAGINATION
    // AND RETURN data results concat
    List updatableQuestions = [];


    while(nextUri != null){
      print('fetching for $nextUri');

      try{
        var response = await http.get(Uri.parse(nextUri));

        if (response.statusCode == 200) {
          final data = json.decode(utf8.decode(response.bodyBytes));
          updatableQuestions+= data['results'];
          // update next page uri from api responded next page link
          nextUri = data['next'];
        }else{
          // so the loop doesn't repeat
          nextUri = null;
        }
      }catch(err, stacktrace){
        print('Updatable Question Fetch Pagination Error');
        print(err);
        print(stacktrace);
        error_toast('Network error.');
        // so the loop doesn't repeat
        nextUri = null;
      }
    }
    return updatableQuestions;
  }