Future send()

in lib/src/browser_client.dart [42:79]
31 lines of code
1 McCabe index (conditional complexity)

  Future<StreamedResponse> send(BaseRequest request) async {
    var bytes = await request.finalize().toBytes();
    var xhr = HttpRequest();
    _xhrs.add(xhr);
    xhr
      ..open(request.method, '${request.url}', async: true)
      ..responseType = 'arraybuffer'
      ..withCredentials = withCredentials;
    request.headers.forEach(xhr.setRequestHeader);

    var completer = Completer<StreamedResponse>();

    unawaited(xhr.onLoad.first.then((_) {
      var body = (xhr.response as ByteBuffer).asUint8List();
      completer.complete(StreamedResponse(
          ByteStream.fromBytes(body), xhr.status!,
          contentLength: body.length,
          request: request,
          headers: xhr.responseHeaders,
          reasonPhrase: xhr.statusText));
    }));

    unawaited(xhr.onError.first.then((_) {
      // Unfortunately, the underlying XMLHttpRequest API doesn't expose any
      // specific information about the error itself.
      completer.completeError(
          ClientException('XMLHttpRequest error.', request.url),
          StackTrace.current);
    }));

    xhr.send(bytes);

    try {
      return await completer.future;
    } finally {
      _xhrs.remove(xhr);
    }
  }