void googled::upload(){
    QNetworkRequest request;
    QFile file("/home/saurabh/random.txt");
    QFileInfo fi(file.fileName());
    QString ext = fi.suffix().toLower();
    QString contentType = "text/plain";

    file.open(QIODevice::ReadOnly);

    QByteArray arr = file.readAll();

    file.close();

    qlonglong fileSize = arr.count();
    qDebug() << arr;
    request.setRawHeader("Content-Type", contentType.toLatin1());
    request.setRawHeader("Content-Length", (QString("%1").arg(fileSize)).toLatin1());
    request.setRawHeader("Content-Range", (QString("bytes 0-%1/%2").arg(fileSize-1).arg(fileSize)).toLatin1());
    request.setUrl(QUrl("https://drive.google.com/#my-drive"));
    m_net = new QNetworkAccessManager;
    QObject::connect(m_net, SIGNAL(finished(QNetworkReply *)),
    this, SLOT(uploadSlot(QNetworkReply *)));
    QVariant x = request.header(QNetworkRequest::LocationHeader);
    qDebug() << x;
    m_net->put(request,arr);

}