Getting empty response in HTTP get request in QT QNetworkAccessManager - c++

Question

I am doing a simple HTTP get request to www.google.co.in but I am getting empty string in response.
Here is my code:
void MainWindow::on_pushButton_clicked()
{
QNetworkAccessManager * mgr = new QNetworkAccessManager(this);
connect(mgr,SIGNAL(finished(QNetworkReply*)),this,SLOT(onfinish(QNetworkReply*)));
QUrl url("www.google.co.in");
url.setScheme("http");
QNetworkRequest request(url);
request.setHeader(QNetworkRequest::ContentTypeHeader,"application/json");
mgr->get(QNetworkRequest(QUrl("www.google.co.in")));
}
void MainWindow::onfinish(QNetworkReply *rep)
{
QByteArray bts = rep->readAll();
QString str(bts);
qDebug() << str;
}
Output is :""
Facing same issue when doing post request to my own server.
In pro file I have done QT += core gui network

Answer 1

You have to add the correct URL, in addition it is recommended that you use the new connection between signals and slots, and finally you must remove the QNetworkReply:
void MainWindow::on_pushButton_clicked()
{
QUrl url("https://www.google.co.in/");
QNetworkAccessManager *mgr = new QNetworkAccessManager(this);
connect(mgr,&QNetworkAccessManager::finished,this,&MainWindow::onfinish);
mgr->get(QNetworkRequest(url));
}
void MainWindow::onfinish(QNetworkReply *rep)
{
QByteArray bts = rep->readAll();
QString str(bts);
qDebug() << str;
rep->deleteLater();
}