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How to connect via API?

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  • M Offline
    M Offline
    Mikeeeeee
    wrote on last edited by
    #38

    @Pablo-J.-Rogina said in How to connect via API?:

    https://jsonplaceholder.typicode.com/todos/1

    Tried to send to this address and got an old error.

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    • M Offline
      M Offline
      Mikeeeeee
      wrote on last edited by
      #39

      And if you sent"http://json placeholder.typecode.com/todos/1" it works. Why https doesn't work?

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      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #40

        Just to be sure add this to your code:

        qDebug() << QSslSocket::supportsSsl();
        qDebug() << QSslSocket::sslLibraryBuildVersionString();
        qDebug() << QSslSocket::sslLibraryVersionString();
        

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

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        • M Offline
          M Offline
          Mikeeeeee
          wrote on last edited by
          #41

          qDebug returns:
          qt.network.ssl: QSslSocket::connectToHostEncrypted: TLS initialization failed
          false
          "OpenSSL 1.0.2p 14 Aug 2018"

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #42

            Are you sure you put the OpenSSL 1.0 dlls in the right folder ? Without mixing them with another version of OpenSSL.

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

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            • M Offline
              M Offline
              Mikeeeeee
              wrote on last edited by
              #43

              Sure. Here is the contents of the folder:
              0_1558769898345_1.png

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              • mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #44

                hi
                I wonder if it also wants libssl32.dll ?

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                • I Offline
                  I Offline
                  IRayman
                  wrote on last edited by
                  #45

                  hey @Mikeeeeee,

                  You can try those .dll. I used it few weeks ago when I needed Qt SSL on Windows and it worked fine.

                  https://anonfile.com/m2Z7N6s6nd/dll_zip

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                  • M Offline
                    M Offline
                    Mikeeeeee
                    wrote on last edited by SGaist
                    #46

                    Thanks. https is working.
                    Trying to use the function TIME_SERIES_DAILY_ADJUSTED.
                    https://www.alphavantage.co/documentation/
                    If you do so it works:

                    request.setUrl(QUrl("https://www.alphavantage.co/query?function=TIME_SERIES_DAILY_ADJUSTED&symbol=MSFT&outputsize=compact&apikey=XXXXXXXXXXXXX"));
                    

                    If doing so does not work:

                    request.setUrl(QUrl("https://www.alphavantage.co/query?function=TIME_SERIES_DAILY_ADJUSTED&symbol=MSFT&outputsize=full&apikey=XXXXXXXXXXXXXXX"));
                    

                    It's me doing something wrong or the server is not working?

                    [edit: removed API key SGaist]

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #47

                      Since you don't show how you are processing the QNetworkReply object created for your request one can only guess. What signals did you connect from the reply object ? What exactly do you mean by "does not work" ?

                      By the way, I've edited out your api key, it's not a good idea to post such information.

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

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                      • M Offline
                        M Offline
                        Mikeeeeee
                        wrote on last edited by
                        #48

                        It's my h-file:

                        private slots:
                            void on_testButton_clicked();
                            void testSlotFromQDebug();
                            void onReply(QNetworkReply* reply);
                        
                        private:
                            Ui::MainWindow *ui;
                            QNetworkAccessManager *apiQuery = new QNetworkAccessManager;
                        

                        it's cpp-file:```
                        #include "mainwindow.h"
                        #include "ui_mainwindow.h"

                        MainWindow::MainWindow(QWidget *parent) :
                        QMainWindow(parent),
                        ui(new Ui::MainWindow)
                        {
                        ui->setupUi(this);

                        //connect(apiQuery, &QNetworkAccessManager::finished, this, &MainWindow::testSlotFromQDebug);
                        

                        }

                        MainWindow::~MainWindow()
                        {
                        delete ui;
                        }

                        void MainWindow::on_testButton_clicked()
                        {
                        QNetworkRequest request;
                        //request.setUrl(QUrl("https://www.alphavantage.co/query?function=TIME_SERIES_DAILY_ADJUSTED&symbol=MSFT&apikey=demo"));
                        request.setUrl(QUrl("https://www.alphavantage.co/query?function=TIME_SERIES_DAILY_ADJUSTED&symbol=MSFT&outputsize=full&apikey=111111"));
                        //request.setUrl(QUrl("https://www.alphavantage.co/query?function=TIME_SERIES_DAILY_ADJUSTED&symbol=MSFT&outputsize=compact&apikey=1111"));

                        QNetworkReply* reply = apiQuery->get(request);
                        connect(reply ,&QNetworkReply::finished,this,std::bind(&MainWindow::onReply,this,reply ));
                        

                        }

                        void MainWindow::testSlotFromQDebug()
                        {
                        //qDebug()<<"point1";
                        }

                        void MainWindow::onReply(QNetworkReply* reply){
                        QJsonDocument jdoc = QJsonDocument::fromJson(reply->readAll());
                        //qDebug() << QSslSocket::supportsSsl();
                        //qDebug() << QSslSocket::sslLibraryBuildVersionString();
                        //qDebug() << QSslSocket::sslLibraryVersionString();
                        qDebug()<<jdoc;
                        // do something with the jdoc
                        }

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #49

                          Again: what do you mean by "it's not working" when using the full output size ?

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

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                          • M Offline
                            M Offline
                            Mikeeeeee
                            wrote on last edited by Mikeeeeee
                            #50

                            Nothing comes back. I do not receive json document.

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                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #51

                              What about connecting the errors related signals ? That might give you some clues about what is happening.

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

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                              • M Offline
                                M Offline
                                Mikeeeeee
                                wrote on last edited by
                                #52

                                But what signals and slots to use to find the error?

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                                • M Offline
                                  M Offline
                                  Mikeeeeee
                                  wrote on last edited by
                                  #53
                                  This post is deleted!
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                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #54

                                    Maybe QNetworkReply::error ?

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

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                                    • M Offline
                                      M Offline
                                      Mikeeeeee
                                      wrote on last edited by
                                      #55

                                      I get "QNetworkReply::NoError"

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                                      • SGaistS Offline
                                        SGaistS Offline
                                        SGaist
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #56

                                        Did you also check QNetworkReply::sslErrors ?

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

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                                        • M Offline
                                          M Offline
                                          Mikeeeeee
                                          wrote on last edited by
                                          #57

                                          But it's a signal. And what should be placed instead of const QList<QSslError> &errors?

                                          jsulmJ 1 Reply Last reply
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