Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. How to connect via API?
Forum Updated to NodeBB v4.3 + New Features

How to connect via API?

Scheduled Pinned Locked Moved Solved General and Desktop
66 Posts 8 Posters 11.7k Views 3 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • 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

    1 Reply Last reply
    0
    • M Offline
      M Offline
      Mikeeeeee
      wrote on last edited by
      #43

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

      1 Reply Last reply
      0
      • mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #44

        hi
        I wonder if it also wants libssl32.dll ?

        1 Reply Last reply
        0
        • 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

          1 Reply Last reply
          0
          • 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]

            1 Reply Last reply
            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

              1 Reply Last reply
              1
              • 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
                }

                1 Reply Last reply
                0
                • 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

                  1 Reply Last reply
                  0
                  • M Offline
                    M Offline
                    Mikeeeeee
                    wrote on last edited by Mikeeeeee
                    #50

                    Nothing comes back. I do not receive json document.

                    1 Reply Last reply
                    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

                      1 Reply Last reply
                      0
                      • 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
                        0
                        • M Offline
                          M Offline
                          Mikeeeeee
                          wrote on last edited by
                          #53
                          This post is deleted!
                          1 Reply Last reply
                          0
                          • 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

                            1 Reply Last reply
                            1
                            • M Offline
                              M Offline
                              Mikeeeeee
                              wrote on last edited by
                              #55

                              I get "QNetworkReply::NoError"

                              1 Reply Last reply
                              0
                              • 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

                                1 Reply Last reply
                                1
                                • 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
                                  0
                                  • M Mikeeeeee

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

                                    jsulmJ Offline
                                    jsulmJ Offline
                                    jsulm
                                    Lifetime Qt Champion
                                    wrote on last edited by jsulm
                                    #58

                                    @Mikeeeeee said in How to connect via API?:

                                    But it's a signal

                                    Yes, and you can connect a slot to a signal...
                                    "And what should be placed instead of const QList<QSslError> &errors?" - ?
                                    Nothing, you implement a slot with same parameter and connect it to the signal as usual:

                                    void MyClass::handleSslErrors(const QList<QSslError> &errors)
                                    {
                                    ...
                                    }
                                    

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

                                    1 Reply Last reply
                                    3
                                    • M Offline
                                      M Offline
                                      Mikeeeeee
                                      wrote on last edited by Mikeeeeee
                                      #59

                                      Did so, the slot does not work. So no mistakes.

                                      connect(reply, & QNetworkReply::sslErrors , this,  &MainWindow::testSlotFromQDebug);
                                      
                                      1 Reply Last reply
                                      0
                                      • M Offline
                                        M Offline
                                        Mikeeeeee
                                        wrote on last edited by
                                        #60

                                        The server seems to works too, because when you click on the link https://www.alphavantage.co/query?function=TIME_SERIES_DAILY_ADJUSTED&symbol=MSFT&outputsize=full&apikey=demo open the file. Maybe this is due to the fact that the file is large?

                                        1 Reply Last reply
                                        0
                                        • SGaistS Offline
                                          SGaistS Offline
                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #61

                                          I tested your query on macOS and it worked fine. What exact version of Windows are you using ?

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

                                          1 Reply Last reply
                                          1

                                          • Login

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular
                                          • Users
                                          • Groups
                                          • Search
                                          • Get Qt Extensions
                                          • Unsolved