onError method

@override Future<void> onError(DioException err, ErrorInterceptorHandler handler)

Called when an exception was occurred during the request.

Implementation

@override
Future<void> onError(
  DioException err,
  ErrorInterceptorHandler handler,
) async {
  final response = err.response;
  if (response == null) {
    handler.next(err);
    return;
  }

  try {
    await saveCookies(response);
    handler.next(err);
  } catch (e, s) {
    final exception = DioException(
      requestOptions: response.requestOptions,
      response: response,
      type: DioExceptionType.unknown,
      error: CookieManagerSaveException(
        response: response,
        error: e,
        stackTrace: s,
        dioException: err,
      ),
      stackTrace: s,
    );
    handler.next(exception);
  }
}