Writing a deferred http response

Hi.
I would really love to be able to handle http requests asynchronously from route handler execution.

httpServer.route("/", [] (const QHttpServerRequest &request) {
    QTimer::singleShot(100, [httpServer, request] () {
        if(httpServer.isValid(request))
            request.respond("Hello, world.");
    }

    return QHttpServer::DeferredResponse;
});

Basicaly, I'd like to store some context in the route handler, send a queued signal to object in other thread, do something there, return via queued signal back to the http server thread, and, finally, write a response.

Do you mind telling, if there is a way to modify QHttpServer to make this possible, or do I just stick to QAbstractHttpServer?

Thanks.