How to connect via API?

[sierdzio]

This should help:

#include <QNetworkReply>

[Mikeeeeee]

Thanks, earned. I receive a response signal. But theoretically, a json file should come in response to the request. Please tell me how you can open the response data, read it, and then delete it if it is not deleted by itself.

[Pablo J. Rogina]

@Mikeeeeee Internet searching is your friend... maybe this example could help you.

[Mikeeeeee]

This example is not working.

[VRonin]

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

then:

void MainWindow::on_testButton_clicked()
{
    QNetworkRequest request;
    request.setUrl(QUrl("https://www.alphavantage.co/query?function=TIME_SERIES_INTRADAY&symbol=MSFT&interval=5min&apikey=demo"));
QNetworkReply* reply = apiQuery->get(request)
    connect(reply ,&QNetworkReply::finished,this,std::bind(&MainWindow::on_reply,this,reply ));
}
void MainWindow::on_reply(QNetworkReply* reply){
QJsonDocument jdoc = QJsonDocument::fromJson(reply->readAll());
// do something with the jdoc
}

[Mikeeeeee]

Qt says: qt.network.ssl: QSslSocket::connectToHostEncrypted: TLS initialization failed
I have api-key: 63YUZ8NP5SW1D302
How can I use the key?

[VRonin]

Qt says: qt.network.ssl: QSslSocket::connectToHostEncrypted: TLS initialization failed

Make sure you have OpenSSL installed

I have api-key: 63YUZ8NP5SW1D302
How can I use the key?

RTFM: https://www.alphavantage.co/documentation/

[Mikeeeeee]

@VRonin said in How to connect via API?:

OpenSSL

This link is nothing about OpenSSL.
OpenSSL need to connect to the project?

[VRonin]

Qt uses OpenSSL to implement TLS and SSL

[Mikeeeeee]

I installed everything in MaintenanceTool. Do I need to download additional OpenSSL?
If you need to install OpenSSL, then how to connect it to Qt?

[SGaist]

Hi,

@Mikeeeeee said in How to connect via API?:

I installed everything in MaintenanceTool. Do I need to download additional OpenSSL?
If you need to install OpenSSL, then how to connect it to Qt?

What OS are you on ? My guess would be Windows.

[Mikeeeeee]

My OS - Windows.

[sierdzio]

@Mikeeeeee said in How to connect via API?:

My OS - Windows.

https://stackoverflow.com/questions/20351155/how-can-i-enable-ssl-in-qt-windows-application

[Mikeeeeee]

downloaded openssl-1.1.1b and put it in the folder with the executable file. Did not help.
In openssl-1.1.1b there is no libeay32.dll.

[Mikeeeeee]

There is a file e_os.h in the main folder of the library .

[SGaist]

What version of Qt are you using ?

[VRonin]

@Mikeeeeee said in How to connect via API?:

I installed everything in MaintenanceTool

Terrible idea

[Mikeeeeee]

I use Qt 5.12.2

[SGaist]

Then try again with the latest version of the 1.0 series.

[Mikeeeeee]

I downloaded openssl-1.0.2r. There is no bin folder. No .exe files. No libeay32.dll. What to do with it?