QNetworkRequest atribute

[mero]

QObject::setProperty() is good solution.

QNetworkRequest request;
    request.setProperty("a123","b456");
...
    accessManager->get(request);
....
...._finished(QNetworkReply *reply)
{
qDebug() << "test:" << reply->property("a123");
...

QNetworkRequest request;
    request.setProperty("a123","b456");
...
    accessManager->get(request);
....
...._finished(QNetworkReply *reply)
{
qDebug() << "test:" << reply->property("a123");
...

To copy to clipboard, switch view to plain text mode 

reply has property, but networkrequest not:

error: ‘class QNetworkRequest’ has no member named ‘setProperty’

error: ‘class QNetworkRequest’ has no member named ‘setProperty’

To copy to clipboard, switch view to plain text mode 

[stampede]

Read again what wysota posted:

use QObject::setProperty() on the reply object you get when issuing a request to QNetworkAccessManager.

[wysota]

If you INSIST on using attributes, you can always do this:

class MyNetworkAccessManager : public QNetworkAccessManager {
public:
  enum CustomAttribute { Attr1 = QNetworkRequest::User, Attr2 };
protected:
  QNetworkReply * createRequest ( Operation op, const QNetworkRequest & req, QIODevice * outgoingData = 0 ) {
    QNetworkReply *reply = QNetworkAccessManager::createRequest(op, req, outgoingData);
    if(req.attribute(Attr1).isValid()) reply->setAttribute(Attr1, req.attribute(Attr1));
    if(req.attribute(Attr2).isValid()) reply->setAttribute(Attr2, req.attribute(Attr2));
    return reply;
  }
};

class MyNetworkAccessManager : public QNetworkAccessManager {
public:
  enum CustomAttribute { Attr1 = QNetworkRequest::User, Attr2 };
protected:
  QNetworkReply * createRequest ( Operation op, const QNetworkRequest & req, QIODevice * outgoingData = 0 ) {
    QNetworkReply *reply = QNetworkAccessManager::createRequest(op, req, outgoingData);
    if(req.attribute(Attr1).isValid()) reply->setAttribute(Attr1, req.attribute(Attr1));
    if(req.attribute(Attr2).isValid()) reply->setAttribute(Attr2, req.attribute(Attr2));
    return reply;
  }
};

To copy to clipboard, switch view to plain text mode 

... although I see no point in doing that. Attributes are there to mean something and not to provide storage for custom data. This is what dynamic properties are for.

[unit]

For your code is:

...
    QNetworkRequest request;
    request.setUrl(QUrl(strUrl));
    QNetworkReply reply = accessManager->get(request);
    reply->setProperty("test1", strTest1);
    reply->setProperty("cat", strCategory);
...
 
... net_finished(QNetworkReply *reply)
{
    reply->deleteLater();
 
    if (reply->error())
        return;
 
    QString strTest1 = reply->property("test1").toString();
    QString strCategory = reply->property("cat").toString();
    QByteArray bData = reply->readAll();
...

...
    QNetworkRequest request;
    request.setUrl(QUrl(strUrl));
    QNetworkReply reply = accessManager->get(request);
    reply->setProperty("test1", strTest1);
    reply->setProperty("cat", strCategory);
...

... net_finished(QNetworkReply *reply)
{
    reply->deleteLater();

    if (reply->error())
        return;

    QString strTest1 = reply->property("test1").toString();
    QString strCategory = reply->property("cat").toString();
    QByteArray bData = reply->readAll();
...

To copy to clipboard, switch view to plain text mode