onError method

  1. @override
void onError(
  1. DioException err,
  2. ErrorInterceptorHandler handler
)

The callback will be executed on error.

If you want to continue the error , call handler.next.

If you want to complete the response with some custom data directly, you can resolve a Response object with handler.resolve and other error interceptor(s) will be skipped.

If you want to complete the response with an error message directly, you can reject a DioException object with handler.reject, and other error interceptor(s) will be skipped.

Implementation

@override
void onError(DioException err, ErrorInterceptorHandler handler) {
  if (_shouldRetry(err)) {
    try {
      requestRetrier.scheduleRequestRetry(err.requestOptions);
    } catch (e) {
      rethrow;
    }
  }
  super.onError(err, handler);
}