How to use

ofByteArray

method

in

java.net.http.HttpRequest$BodyPublishers

  /**
   * Marshal value to json, for async http using. Default using block api to get all data once, and then publish.
   *
   * @param value   the value
   * @param charset the charset
   * @return http body publisher
   */
  HttpRequest.BodyPublisher asPublisher(Object value, Charset charset) {
    try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
      marshal(value, bos, charset);
      return HttpRequest.BodyPublishers.ofByteArray(bos.toByteArray());
    } catch (IOException e) {
      throw new UncheckedIOException(e);
    }
  }
}

@Override
public BodyPublisher asBodyPublisher() {
  List<BodyPublisher> publishers = new ArrayList<>();
  for (Part part : body()) {
    publishers.add(BodyPublishers.ofString("--" + BOUNDARY + LINE_END, US_ASCII));
    String header = part.headerData();
    publishers.add(BodyPublishers.ofString(header, US_ASCII));
    publishers.add(part.asPublisher());
    publishers.add(BodyPublishers.ofByteArray(LINE_END.getBytes()));
  }
  publishers.add(BodyPublishers.ofString("--" + BOUNDARY + "--" + LINE_END, US_ASCII));
  return new AggregateBodyPublisher(publishers);
}

  @Override
  public BodyPublisher asBodyPublisher() {
    return BodyPublishers.ofByteArray(body());
  }
}