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Data via Qt Creator Console from WebSocket

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  • S Offline
    S Offline
    Samuel123
    wrote on 6 Apr 2023, 15:28 last edited by
    #1

    Hello,
    I would like to know how to output information from a WebSocket via Qt Creator Console. This is my code, which is not working:

    #include <QCoreApplication>
    #include <QWebSocket>
    #include <QtDebug>

    int main(int argc, char *argv[])
    {
    QCoreApplication a(argc, argv);

    //WebSocket:
    QWebSocket *socket = new QWebSocket();
    socket->open(QUrl("ws://IP-Adresse"));
    
    QObject::connect(socket, &QWebSocket::connected, [] () {
    	qDebug() << "WebSocket connected";
    });
    
    QObject::connect(socket, &QWebSocket::connected, [] (const QString &message) {
    	qDebug() << Nachricht: " << message;
    });
    
    QObject::connect(socket, &QWebSocket::disconnected, [] () {
    	qDebug() << "WebSocket disconnected";
    });
    
    socket->close();
    return a.exec();
    

    }

    Does someone have solutions?

    ? 2 Replies Last reply 6 Apr 2023, 16:33
    0
    • S Samuel123
      6 Apr 2023, 15:28

      Hello,
      I would like to know how to output information from a WebSocket via Qt Creator Console. This is my code, which is not working:

      #include <QCoreApplication>
      #include <QWebSocket>
      #include <QtDebug>

      int main(int argc, char *argv[])
      {
      QCoreApplication a(argc, argv);

      //WebSocket:
      QWebSocket *socket = new QWebSocket();
      socket->open(QUrl("ws://IP-Adresse"));
      
      QObject::connect(socket, &QWebSocket::connected, [] () {
      	qDebug() << "WebSocket connected";
      });
      
      QObject::connect(socket, &QWebSocket::connected, [] (const QString &message) {
      	qDebug() << Nachricht: " << message;
      });
      
      QObject::connect(socket, &QWebSocket::disconnected, [] () {
      	qDebug() << "WebSocket disconnected";
      });
      
      socket->close();
      return a.exec();
      

      }

      Does someone have solutions?

      ? Offline
      ? Offline
      A Former User
      wrote on 6 Apr 2023, 16:33 last edited by A Former User 4 Jun 2023, 16:35
      #2

      @Samuel123 yes easy one : connect your lambda function to the appropriate signal : use textMessageReceived or binaryMessageReceived which are both intended to be emitted upon message reception on the contrary of connected which wont ever be triggered in that case.

      S 1 Reply Last reply 13 Apr 2023, 09:43
      0
      • ? A Former User
        6 Apr 2023, 16:33

        @Samuel123 yes easy one : connect your lambda function to the appropriate signal : use textMessageReceived or binaryMessageReceived which are both intended to be emitted upon message reception on the contrary of connected which wont ever be triggered in that case.

        S Offline
        S Offline
        Samuel123
        wrote on 13 Apr 2023, 09:43 last edited by
        #3

        @ankou29666 Thank you for your answer. Can you provide an example of how to integrate that into a code?

        1 Reply Last reply
        0
        • S Samuel123
          6 Apr 2023, 15:28

          Hello,
          I would like to know how to output information from a WebSocket via Qt Creator Console. This is my code, which is not working:

          #include <QCoreApplication>
          #include <QWebSocket>
          #include <QtDebug>

          int main(int argc, char *argv[])
          {
          QCoreApplication a(argc, argv);

          //WebSocket:
          QWebSocket *socket = new QWebSocket();
          socket->open(QUrl("ws://IP-Adresse"));
          
          QObject::connect(socket, &QWebSocket::connected, [] () {
          	qDebug() << "WebSocket connected";
          });
          
          QObject::connect(socket, &QWebSocket::connected, [] (const QString &message) {
          	qDebug() << Nachricht: " << message;
          });
          
          QObject::connect(socket, &QWebSocket::disconnected, [] () {
          	qDebug() << "WebSocket disconnected";
          });
          
          socket->close();
          return a.exec();
          

          }

          Does someone have solutions?

          ? Offline
          ? Offline
          A Former User
          wrote on 13 Apr 2023, 09:49 last edited by A Former User
          #4

          @Samuel123 said in Data via Qt Creator Console from WebSocket:

          QObject::connect(socket, &QWebSocket::connected, [] (const QString &message) {
          qDebug() << Nachricht: " << message;
          });

          becomes

          QObject::connect(socket, &QWebSocket::textMessageReceived, [] (const QString &message) {
          	qDebug() << Nachricht: " << message;
          });
          
          S 1 Reply Last reply 13 Apr 2023, 12:37
          0
          • ? A Former User
            13 Apr 2023, 09:49

            @Samuel123 said in Data via Qt Creator Console from WebSocket:

            QObject::connect(socket, &QWebSocket::connected, [] (const QString &message) {
            qDebug() << Nachricht: " << message;
            });

            becomes

            QObject::connect(socket, &QWebSocket::textMessageReceived, [] (const QString &message) {
            	qDebug() << Nachricht: " << message;
            });
            
            S Offline
            S Offline
            Samuel123
            wrote on 13 Apr 2023, 12:37 last edited by
            #5

            @ankou29666 I changed it, but it didn't make any difference. Do you know if it's enough to just enter the IP address of the WebSocket after "socket->open"?

            SGaistS 1 Reply Last reply 13 Apr 2023, 16:08
            0
            • S Samuel123
              13 Apr 2023, 12:37

              @ankou29666 I changed it, but it didn't make any difference. Do you know if it's enough to just enter the IP address of the WebSocket after "socket->open"?

              SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on 13 Apr 2023, 16:08 last edited by
              #6

              Hi,

              Why are you closing the socket before calling ˋapp.exec();` ?

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

              S 1 Reply Last reply 16 Apr 2023, 15:51
              1
              • SGaistS SGaist
                13 Apr 2023, 16:08

                Hi,

                Why are you closing the socket before calling ˋapp.exec();` ?

                S Offline
                S Offline
                Samuel123
                wrote on 16 Apr 2023, 15:51 last edited by
                #7

                @SGaist Now it worked. Thanks very much.

                1 Reply Last reply
                0

                1/7

                6 Apr 2023, 15:28

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