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How to send json-file to the address?

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  • Christian EhrlicherC Offline
    Christian EhrlicherC Offline
    Christian Ehrlicher
    Lifetime Qt Champion
    wrote on last edited by
    #7

    Again: how should it work when the socket has no time to do the actual connection? The operations are asynchronous !

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    1 Reply Last reply
    3
    • M Offline
      M Offline
      Mikeeeeee
      wrote on last edited by Mikeeeeee
      #8

      Okay, can you please tell me how I can run it asynchronously?
      Or maybe the program can wait until a socket connection appears?

      jsulmJ 1 Reply Last reply
      0
      • M Mikeeeeee

        Okay, can you please tell me how I can run it asynchronously?
        Or maybe the program can wait until a socket connection appears?

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by jsulm
        #9

        @Mikeeeeee said in How to send json-file to the address?:

        Okay, can you please tell me how I can run it asynchronously?

        You already do. You need to connect a slot to https://doc.qt.io/qt-5/qwebsocket.html#connected signal and in that slot call

        qDebug()<<myWebSocket.isValid();
        

        "Or maybe the program can wait until a socket connection appears?" - why don't you simply use signals/slots?!

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        1 Reply Last reply
        2
        • M Offline
          M Offline
          Mikeeeeee
          wrote on last edited by
          #10

          I took the example code, and it says so:

          SslEchoClient::SslEchoClient(const QUrl &url, QObject *parent) :
              QObject(parent)
          {
              connect(&m_webSocket, &QWebSocket::connected, this, &SslEchoClient::onConnected);
              connect(&m_webSocket, QOverload<const QList<QSslError>&>::of(&QWebSocket::sslErrors),
                      this, &SslEchoClient::onSslErrors);
              m_webSocket.open(QUrl(url));
          }
          

          There are signals and slots, I create an object of this class, but it does not connect. Why?

          jsulmJ J.HilkJ 2 Replies Last reply
          0
          • M Mikeeeeee

            I took the example code, and it says so:

            SslEchoClient::SslEchoClient(const QUrl &url, QObject *parent) :
                QObject(parent)
            {
                connect(&m_webSocket, &QWebSocket::connected, this, &SslEchoClient::onConnected);
                connect(&m_webSocket, QOverload<const QList<QSslError>&>::of(&QWebSocket::sslErrors),
                        this, &SslEchoClient::onSslErrors);
                m_webSocket.open(QUrl(url));
            }
            

            There are signals and slots, I create an object of this class, but it does not connect. Why?

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by jsulm
            #11

            @Mikeeeeee said in How to send json-file to the address?:

            but it does not connect. Why?

            You know, there is https://doc.qt.io/qt-5/qwebsocket.html#error-1 signal.
            Did you connect a slot to it to see whether you get an error?

            Also see https://doc.qt.io/qt-5/qwebsocket.html#errorString

            https://forum.qt.io/topic/113070/qt-code-of-conduct

            1 Reply Last reply
            2
            • M Mikeeeeee

              I took the example code, and it says so:

              SslEchoClient::SslEchoClient(const QUrl &url, QObject *parent) :
                  QObject(parent)
              {
                  connect(&m_webSocket, &QWebSocket::connected, this, &SslEchoClient::onConnected);
                  connect(&m_webSocket, QOverload<const QList<QSslError>&>::of(&QWebSocket::sslErrors),
                          this, &SslEchoClient::onSslErrors);
                  m_webSocket.open(QUrl(url));
              }
              

              There are signals and slots, I create an object of this class, but it does not connect. Why?

              J.HilkJ Offline
              J.HilkJ Offline
              J.Hilk
              Moderators
              wrote on last edited by
              #12

              @Mikeeeeee said in How to send json-file to the address?:

              QWebSocket::sslErrors

              why the overload ? as far as I can see sslErrors has no alternatives to QList<QSslErrors>

              https://doc.qt.io/qt-5/qwebsocket-members.html


              Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


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              A: It's blue light.
              Q: What does it do?
              A: It turns blue.

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              2
              • M Offline
                M Offline
                Mikeeeeee
                wrote on last edited by
                #13

                Tried to start an example "SslEchoClient", but it irzhe does not connect and does not display error messages.
                In my project I connected the status output to the button:

                #include "mainwindow.h"
                #include "ui_mainwindow.h"
                
                MainWindow::MainWindow(QWidget *parent) :
                    QMainWindow(parent),
                    ui(new Ui::MainWindow)
                {
                    ui->setupUi(this);
                
                    myUrl = "wss://ws.binaryws.com/websockets/v3?app_id=xlY2chJRk0XoSL5";
                    myWebSocket.open(QUrl(myUrl));
                    qDebug()<<myWebSocket.isValid()<<myWebSocket.state();
                
                }
                
                MainWindow::~MainWindow()
                {
                    delete ui;
                }
                
                void MainWindow::on_testButton_clicked()
                {
                    qDebug()<<myWebSocket.isValid()<<myWebSocket.state()<<myWebSocket.error();
                }
                

                Debug return:
                false QAbstractSocket::UnconnectedState QAbstractSocket::UnknownSocketError
                false QAbstractSocket::UnconnectedState QAbstractSocket::UnknownSocketError
                false QAbstractSocket::UnconnectedState QAbstractSocket::UnknownSocketError
                false QAbstractSocket::UnconnectedState QAbstractSocket::UnknownSocketError

                Why can't I even use the example "SslEchoClient" to connect to the websocket?

                jsulmJ 1 Reply Last reply
                0
                • M Mikeeeeee

                  Tried to start an example "SslEchoClient", but it irzhe does not connect and does not display error messages.
                  In my project I connected the status output to the button:

                  #include "mainwindow.h"
                  #include "ui_mainwindow.h"
                  
                  MainWindow::MainWindow(QWidget *parent) :
                      QMainWindow(parent),
                      ui(new Ui::MainWindow)
                  {
                      ui->setupUi(this);
                  
                      myUrl = "wss://ws.binaryws.com/websockets/v3?app_id=xlY2chJRk0XoSL5";
                      myWebSocket.open(QUrl(myUrl));
                      qDebug()<<myWebSocket.isValid()<<myWebSocket.state();
                  
                  }
                  
                  MainWindow::~MainWindow()
                  {
                      delete ui;
                  }
                  
                  void MainWindow::on_testButton_clicked()
                  {
                      qDebug()<<myWebSocket.isValid()<<myWebSocket.state()<<myWebSocket.error();
                  }
                  

                  Debug return:
                  false QAbstractSocket::UnconnectedState QAbstractSocket::UnknownSocketError
                  false QAbstractSocket::UnconnectedState QAbstractSocket::UnknownSocketError
                  false QAbstractSocket::UnconnectedState QAbstractSocket::UnknownSocketError
                  false QAbstractSocket::UnconnectedState QAbstractSocket::UnknownSocketError

                  Why can't I even use the example "SslEchoClient" to connect to the websocket?

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #14

                  @Mikeeeeee DO YOU HAVE ANY ERRORS WHEN TRYING TO CONNECT? After calling myWebSocket.open(QUrl(myUrl).
                  Did you connect a slot to https://doc.qt.io/qt-5/qwebsocket.html#error-1 as I suggested?
                  Is your onSslErrors called?

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

                  1 Reply Last reply
                  2
                  • M Offline
                    M Offline
                    Mikeeeeee
                    wrote on last edited by
                    #15

                    I did, but debag doesn't say it was a error:

                        myUrl = "wss://ws.binaryws.com/websockets/v3?app_id=xlY2chJRk0XoSL5";
                        myWebSocket.open(QUrl(myUrl));
                        //myWebSocket
                        qDebug()<<myWebSocket.isValid()<<myWebSocket.state();
                        connect(&myWebSocket, QOverload<QAbstractSocket::SocketError>::of(&QWebSocket::error),
                            [=](QAbstractSocket::SocketError error){ qDebug()<<"i have error";});
                    

                    Example "SslEchoClient" also no message, means no error, but the websocket is not connected.

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                    0
                    • M Offline
                      M Offline
                      Mikeeeeee
                      wrote on last edited by
                      #16

                      Do you have an example of "SslEchoClient" connecting to a websocket?

                      1 Reply Last reply
                      0
                      • M Offline
                        M Offline
                        Mikeeeeee
                        wrote on last edited by
                        #17

                        Found this code. It is similar to worker.
                        You do not know any besoket on which it is possible to check operability?

                        1 Reply Last reply
                        0
                        • M Offline
                          M Offline
                          Mikeeeeee
                          wrote on last edited by
                          #18

                          If I use the program with GitHub, I get an error: "WebSocket::processHandshake: Unhandled http status code 301"
                          Please tell me why and how to fix it?

                          jsulmJ 1 Reply Last reply
                          0
                          • M Mikeeeeee

                            If I use the program with GitHub, I get an error: "WebSocket::processHandshake: Unhandled http status code 301"
                            Please tell me why and how to fix it?

                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #19

                            @Mikeeeeee If you use Google to search for "http 301" you will find https://en.wikipedia.org/wiki/HTTP_301 which tells you that 301 status code means "Moved Permanently is used for permanent URL redirection". What URL are you using?

                            https://forum.qt.io/topic/113070/qt-code-of-conduct

                            1 Reply Last reply
                            1
                            • M Offline
                              M Offline
                              Mikeeeeee
                              wrote on last edited by Mikeeeeee
                              #20

                              Trying to connect to websocket "wss://ws.binaries.com/websockets/v3?app_id=1089".
                              Yesterday, he was connected here, and today is not connected.
                              Apparently he works on a certain time.

                              1 Reply Last reply
                              0
                              • M Offline
                                M Offline
                                Mikeeeeee
                                wrote on last edited by
                                #21

                                It looks like the bug of websocket. I connect to other web sites.

                                1 Reply Last reply
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