curl --request POST \
  --url https://public-api-demo.clearline.me/v2/pos/{posSystemId}/widget/showQrCode \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json-patch+json' \
  --data '
{
  "posLocationId": "6orMqUyq2Hg3tP",
  "terminalId": "6orMqUyq",
  "widgetId": "5",
  "sessionId": "SESSION_ID",
  "profile": {
    "firstName": "Olli",
    "lastName": "Ozby",
    "customerEmail": "",
    "customerPhone": "",
    "salesPerson": "0666"
  },
  "couponId": ""
}
'

{
  "data": {
    "qrCodeHtmlLinkUrl": "<string>"
  }
}