onRequest method

Implementation

@override
void onRequest(
  RequestOptions options,
  RequestInterceptorHandler handler,
) async {
  try {
    final networkRequest = NetworkRequest(
      method: options.method,
      path: options.path,
      headers: Map<String, String>.from(
        options.headers.cast<String, String>(),
      ),
      queryParameters: options.queryParameters,
      body: options.data,
    );

    await interceptor.onRequest(networkRequest);

    // Apply any changes back to the request options
    options.headers.clear();
    options.headers.addAll(networkRequest.headers);
    options.queryParameters.clear();
    options.queryParameters.addAll(networkRequest.queryParameters ?? {});
    options.data = networkRequest.body;

    handler.next(options);
  } catch (e) {
    handler.reject(
      DioException(
        requestOptions: options,
        error: e,
        message: 'Interceptor error: ${e.toString()}',
      ),
    );
  }
}