How to get a Json value from an api and display it in a GUI

[hoonara]

Good day,

I'm tring to make a GUI that processes an api requested value. Those values are in Json format.

https://api.bitmart.com/ticker/BMX_ETH

Let's say I want to get the value of "bid_1" and make a pushbutton and a lable that changes into the value of "bid_1" when clicked.

To make a simple onpushbuttonclicked I use this

void MainWindow::on_pushButton_clicked()
{
    ui->label_11->setText("Hello");
}

void MainWindow::on_pushButton_clicked()
{
    ui->label_11->setText("Hello");
}

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Instead of "hello" I want a String with the value of "bid_1".

As far as I understand I have to use

void MainWindow::on_pushButton_clicked()
{
    QUrl url("https://api.bitmart.com/ticker/BMX_ETH");
    QNetworkRequest request(url);
    //send request
    //read replied data
    //interpret replied data as string/Json
    ui->label->setText(QString::number);
}

void MainWindow::on_pushButton_clicked()
{
    QUrl url("https://api.bitmart.com/ticker/BMX_ETH");
    QNetworkRequest request(url);
    //send request
    //read replied data
    //interpret replied data as string/Json
    ui->label->setText(QString::number);
}

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But I don't understand and would like to know how to send the request for a specific json value and convert it into a string.

In Python you can just use this.

def funkction():
    bid_data = requests.get("https://api.bitmart.com/ticker/BMX_ETH")
    return bid_data.json()["bid_1"]
 
value = float(function())

def funkction():
    bid_data = requests.get("https://api.bitmart.com/ticker/BMX_ETH")
    return bid_data.json()["bid_1"]

value = float(function())

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I'm looking for something simple like that since I'm not that skilled and appreciate any solution with the given example so I can transfer it to my project.