Qt - Network (http request)

.pro file

QT += network

main.cpp

#include "tester.h"
 
int main(int argc, char *argv[])
{
  QCoreApplication a(argc, argv);
  
  Tester test;
  test.GetUrl();      //Just start it
  
  return a.exec();
}

tester.cpp

#include "tester.h"
 
Tester::Tester(QObject *parent) : 
    QObject(parent)
{
  
}

void Tester::GetUrl()
{
  /*****If we connect to a proxy*****************/
   QNetworkProxy proxy;
   proxy.setType(QNetworkProxy::DefaultProxy);
   proxy.setHostName("127.0.0.1");              //Where the proxy is setup. (In this case localhost)
   proxy.setPort(1080);
   //proxy.setUser("username");
   //proxy.setPassword("password");
   QNetworkProxy::setApplicationProxy(proxy);   //Every packet will go out through the proxy
  /**********************************************/
  
    
  //Connecting
  QNetworkAccessManager *manager = new QNetworkAccessManager(this);
  
  connect(manager,SIGNAL(finished(QNetworkReply*)),this,SLOT(replyFinished(QNetworkReply *Reply)));
  
  //Perform an HTTP GET
  manager->get(QNetworkRequest(QUrl("http://www.blabla.com/file.png")));  //When done, replyFinished(..) will be triggered
}


void Tester::replyFinished(QNetworkReply *Reply)
{
  //Reading the reply from the http request
  if (Reply->isOpen())
  {
    Reply->read(5000);      //read the first 5000 bytes
    Reply->close();
  }
}

tester.h

//Tester class, inherits QObject

#include <QNetworkAccessManager>        //Our includes
#include <QNetworkReply>
#include <QNetworkRequest>

#include <QNetworkProxy>                //If you need to go through a proxy server/service (like Tor)

class Tester : public QObject
{
  Q_OBJECT
 
  public:
    explicit Tester(QObjet parent = 0);
 
  signals:

  public slots:
    void GetUrl();                            //get the file
    void replyFinished(QNetworkReply *Reply);

};

tester line 14 "explicit Tester(QObjet parent = 0);" typo , replace with QObject and add #include