issue in downloading using QNetworkAccessManager

[alainstgt]

you do not upload the data, so you'll never get the signal finished().

You must add something like:

connect( mpReply, SIGNAL( readyRead() ), SLOT( downloadReadyRead() ));   // trigger data download
mpReply = manager.get( request );
...
 
void qmlinterface::downloadReadyRead()
{
   mBuffer += mpReply->readAll);            									
   //qDebug() << "mpBuffer size =" << mpBuffer->size();
}

connect( mpReply, SIGNAL( readyRead() ), SLOT( downloadReadyRead() ));   // trigger data download
mpReply = manager.get( request );
...

void qmlinterface::downloadReadyRead()
{
   mBuffer += mpReply->readAll);            									
   //qDebug() << "mpBuffer size =" << mpBuffer->size();
}

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in class declaration add:

private slots:
   void downloadReadyRead();
 
private:
   QNetworkReply*  mpReply;
   QByteArray        mBuffer

private slots:
   void downloadReadyRead();

private:
   QNetworkReply*  mpReply;
   QByteArray        mBuffer

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Notice that this approach would probably not work correctly if you are sending several requests.
You should use then a queue to store the requests and working down the queue one after the other.