client.request() secure parameter not working

Hello everyone, I have a problem where I can't retrieve the values ​​filled in the app using client.request.

My parameter is configured as follows:

{
"name": "integrationKey",
 "type": "text",
 "required": true,
 "secure": true
}

When trying to call my method using client.request() my parameter is not populated correctly. The variable inside the {{setting.integrationKey}} is not recognized.

client
        .request({
          type: 'POST',
          url: 'https://jet-commerce.vercel.app/api/auth',
          contentType: 'application/json',
          headers: {
            Authorization: 'Basic {{setting.integrationKey}}',
            Accept: 'application/json'
          },
          data: '{{setting.integrationKey}}',
          cors: false,
          secure: true,
          httpCompleteResponse: true
        })
        .then(function (data) {
          console.log('my', data)
          return data['access_token']
        })

How can I retrieve these parameters to use in my code?