Как в Qt отправить http POST запрос с картинкой

QHttpMultiPart * data = new QHttpMultiPart();
    QHttpPart part;
    part.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("text/plain"));
    part.setHeader(QNetworkRequest::ContentDispositionHeader,  QVariant("form-data; name=\"text\""));
    part.setBody("Hello there!");
    data->append(part);
    QHttpPart imagePart;
    imagePart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("image/jpeg"));
    imagePart.setHeader(QNetworkRequest::ContentDispositionHeader, QVariant("multipart/form-data; name=\"image\"; filename=\"1.jpg\""));
    imagePart.setRawHeader("Content-Transfer-Encoding","binary");

    QFile *file = new QFile("E:/images/devine_icons_part_2_by_ipapun-d2c0w18/Gaia/PNG/Dark/1.png");
    if(file->open(QIODevice::ReadOnly))
        qDebug()<<"file opened";
    qDebug()<<"file:"<<file->size();
    imagePart.setBodyDevice(file);
    data->append(imagePart);
    file->close();  
    myApiQuery.post(request, data);

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Оказалось зря закрыл файл, при отправке идет чтение файла.
https://doc.qt.io/qt-5/qhttpmultipart.html#details

void sendImage(int sessid, int type, int dest, int format, QString imgBase64Data)
{
        QNetworkRequest request;
        request.setUrl(QUrl(ipAddress + "ctlapi/cmd=preparereportimg&sessid=" + QString::number(sessid)));
        request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");

        QUrlQuery postData;
        postData.addQueryItem("idx",    QString::number(type));
        postData.addQueryItem("dest",   QString::number(dest));
        postData.addQueryItem("format", QString::number(format));
        postData.addQueryItem("img",    imgBase64Data);

        QNetworkReply *reply = netManager.get()->post(request, postData.toString(QUrl::FullyEncoded).toUtf8());
        connect(reply, &QNetworkReply::finished, [this, reply]()
        {            
            if(reply->error() == QNetworkReply::NoError)
                emit sgProcImage(reply->readAll());
            else
                procNetworkFinishedReplyError(reply);

            reply->deleteLater();
        });
}

картинка должна быть представляена в base64 формате