network<T> method

Future<T?> network<T>({ required dynamic request(Dio api), dynamic handleSuccess(Response response)?, dynamic handleFailure(DioException error)?, String? bearerToken, String? baseUrl, bool useUndefinedResponse = true, Map<String, dynamic> headers = const {}, })

Networking class to handle API requests Use the request callback to call an API handleSuccess overrides the response on a successful status code handleFailure overrides the response on a failure

Usage: Future<List

Implementation

Future<T?> network<T>(
    {required Function(Dio api) request,
    Function(Response response)? handleSuccess,
    Function(DioException error)? handleFailure,
    String? bearerToken,
    String? baseUrl,
    bool useUndefinedResponse = true,
    Map<String, dynamic> headers = const {}}) async {
  try {
    Map<String, dynamic> oldHeader = _api.options.headers;
    Map<String, dynamic> newValuesToAddToHeader = {};
    if (headers.isNotEmpty) {
      for (var header in headers.entries) {
        if (!oldHeader.containsKey(header.key)) {
          newValuesToAddToHeader.addAll({header.key: header.value});
        }
      }
    }
    if (bearerToken != null) {
      newValuesToAddToHeader.addAll({"Authorization": "Bearer $bearerToken"});
    }
    _api.options.headers.addAll(newValuesToAddToHeader);
    String oldBaseUrl = _api.options.baseUrl;
    if (baseUrl != null) {
      _api.options.baseUrl = baseUrl;
    }
    Response response = await request(_api);
    _api.options.headers = oldHeader; // reset headers
    _api.options.baseUrl = oldBaseUrl; //  reset base url
    _api.options.queryParameters = {}; // reset query parameters

    dynamic data = handleResponse<T>(response, handleSuccess: handleSuccess);
    if (data != T && useUndefinedResponse) {
      onUndefinedResponse(data, response, _context);
    }
    _context = null;
    return data;
  } on DioException catch (dioError) {
    NyLogger.error(dioError.toString());
    onError(dioError);
    if (_context != null) {
      displayError(dioError, _context!);
    }

    if (handleFailure != null) {
      return handleFailure(dioError);
    }

    return null;
  } on Exception catch (e) {
    NyLogger.error(e.toString());
    return null;
  }
}