How to connect via API?
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There is a file e_os.h in the main folder of the library .
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What version of Qt are you using ?
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I use Qt 5.12.2
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Then try again with the latest version of the 1.0 series.
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I downloaded openssl-1.0.2r. There is no bin folder. No .exe files. No libeay32.dll. What to do with it?
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I downloaded libeay32.dll ssleay32.dll and put them to the executable file and the project, but it still does not work.
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Still the same error or another one ?
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Same error: TLS initialization failed
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Did you check whether you can connect to another https resource and if it triggers the same error ?
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Not check. I don't know what other resource to connect to.
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This post is deleted!
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How to fix this error?
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@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 }
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@Pablo-J.-Rogina said in How to connect via API?:
Tried to send to this address and got an old error.
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And if you sent"http://json placeholder.typecode.com/todos/1" it works. Why https doesn't work?
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Just to be sure add this to your code:
qDebug() << QSslSocket::supportsSsl(); qDebug() << QSslSocket::sslLibraryBuildVersionString(); qDebug() << QSslSocket::sslLibraryVersionString();
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qDebug returns:
qt.network.ssl: QSslSocket::connectToHostEncrypted: TLS initialization failed
false
"OpenSSL 1.0.2p 14 Aug 2018"
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Are you sure you put the OpenSSL 1.0 dlls in the right folder ? Without mixing them with another version of OpenSSL.
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Sure. Here is the contents of the folder:
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hi
I wonder if it also wants libssl32.dll ?
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hey @Mikeeeeee,
You can try those .dll. I used it few weeks ago when I needed Qt SSL on Windows and it worked fine.
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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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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.
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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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Again: what do you mean by "it's not working" when using the full output size ?
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Nothing comes back. I do not receive json document.
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What about connecting the errors related signals ? That might give you some clues about what is happening.
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But what signals and slots to use to find the error?
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This post is deleted!
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Maybe QNetworkReply::error ?
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I get "QNetworkReply::NoError"
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Did you also check QNetworkReply::sslErrors ?
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But it's a signal. And what should be placed instead of const QList<QSslError> &errors?
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@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) { ... }
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Did so, the slot does not work. So no mistakes.
connect(reply, & QNetworkReply::sslErrors , this, &MainWindow::testSlotFromQDebug);
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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?
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I tested your query on macOS and it worked fine. What exact version of Windows are you using ?
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Yes, I use Windows
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@Mikeeeeee Do you think "Yes, I use Windows" is a useful answer to "What exact version of Windows are you using?"?!
We already know that you're using Windows, the question was which exact version?...
Why can't you give exact answers and ask questions which can actually be understood?
