How to use

HttpResponse$BodySubscriber

in

java.net.http

/**
 * Handler async response body with body subscriber.
 *
 * @param bodySubscriber the body subscriber.
 * @param <T>            the body type returned by body handler
 * @return the response future
 */
public <T> CompletableFuture<Response<T>> handle(BodySubscriber<T> bodySubscriber) {
  requireNonNull(bodySubscriber);
  return handle((charset, ri) -> {
    ri.body().subscribe(bodySubscriber);
    return bodySubscriber.getBody().toCompletableFuture();
  });
}

/**
 * Treat the response body as String.
 *
 * @return the response Future
 */
public CompletableFuture<Response<String>> toTextResponse() {
  return handle((charset, ri) -> {
    var bodySubscriber = BodySubscribers.ofString(charset.get());
    ri.body().subscribe(bodySubscriber);
    return bodySubscriber.getBody().toCompletableFuture();
  });
}