How to get images as answers to questions

[lieberk2-hd]

I have a question like: vehicle_image5
When I read this with the getFormSubmissions api call I get back all the answers. But for the image I get back the data like:

{
    "widget_metadata": {
        "type": "imagelinks",
        "value": [
            {
                "name": "AC Cobra 6.jpg",
                "url": "/widget-uploads/imagepreview/123123123123/123AC_Cobra_665bffac78e450.jpg"
            }
        ]
    }
}

but how can I get to this image to download the jpg file while authorized by the API?
I know that the image is at https://files.jotform.com/jotformWidgets/imagepreview/123123123123/123AC_Cobra_665bffac78e450.jpg but of course I have no rights to wget or curl it directly.