onRequest method

@override Future<void> onRequest(RequestOptions options, RequestInterceptorHandler handler)

Called when the request is about to be sent.

Implementation

@override
Future<void> onRequest(
  RequestOptions options,
  RequestInterceptorHandler handler,
) async {
  final headers = options.headers;
  final startTime = DateTime.now();
  // ignore: invalid_use_of_internal_member
  final w3Header = await _networklogger.getW3CHeader(
    headers,
    startTime.millisecondsSinceEpoch,
  );
  if (w3Header?.isW3cHeaderFound == false &&
      w3Header?.w3CGeneratedHeader != null) {
    headers['traceparent'] = w3Header?.w3CGeneratedHeader;
  }
  options.headers = headers;
  final data = NetworkData(
    startTime: startTime,
    url: options.uri.toString(),
    w3cHeader: w3Header,
    method: options.method,
  );
  _requests[options.hashCode] = data;
  handler.next(options);
}