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How to connect via API?

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  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #33

    Did you check whether you can connect to another https resource and if it triggers the same 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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    0
    • M Offline
      M Offline
      Mikeeeeee
      wrote on last edited by
      #34

      Not check. I don't know what other resource to connect to.

      jsulmJ Pablo J. RoginaP 2 Replies Last reply
      0
      • M Mikeeeeee

        Not check. I don't know what other resource to connect to.

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #35
        This post is deleted!
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        0
        • M Offline
          M Offline
          Mikeeeeee
          wrote on last edited by
          #36

          How to fix this error?

          1 Reply Last reply
          0
          • M Mikeeeeee

            Not check. I don't know what other resource to connect to.

            Pablo J. RoginaP Offline
            Pablo J. RoginaP Offline
            Pablo J. Rogina
            wrote on last edited by
            #37

            @Mikeeeeee you may try a JSON testing site with secure connections, like https://jsonplaceholder.typicode.com

            i.e. https://jsonplaceholder.typicode.com/todos/1 will return:

            {
              "userId": 1,
              "id": 1,
              "title": "delectus aut autem",
              "completed": false
            }
            

            Upvote the answer(s) that helped you solve the issue
            Use "Topic Tools" button to mark your post as Solved
            Add screenshots via postimage.org
            Don't ask support requests via chat/PM. Please use the forum so others can benefit from the solution in the future

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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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                        0
                        • 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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                              0
                              • 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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                                    0
                                    • 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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                                      0
                                      • 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?

                                          1 Reply Last reply
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