How to connect via API?
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Qt says: qt.network.ssl: QSslSocket::connectToHostEncrypted: TLS initialization failed
I have api-key: 63YUZ8NP5SW1D302
How can I use the key?
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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?
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@VRonin said in How to connect via API?:
OpenSSL
This link is nothing about OpenSSL.
OpenSSL need to connect to the project?
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Qt uses OpenSSL to implement TLS and SSL
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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?
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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.
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My OS - Windows.
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@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
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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.
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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 ?
