How do I make this request?

Does anyone know how to format this data string correctly to export a csv or json from this particular API endpoint?

I can export a csv manually from the 'export' button on the page accessed via this URL -

shifts?date=2024-09-10&mode=day&tab=fullschedule 

but I want to be able to do it via a curl request or from a php script. I've tried various ways of formatting the request but haven't found the right one yet. Any ideas?