How to trigger a new request when use api as data source and update variable in it.

I am using API and Infinite Scroll in FlutterFlow, but I noticed that the API does not trigger a new request when I update the variables.

I try to make the API call at the scaffold level instead of listview. But if I did that, I cannot have infinite scrolling option.

Some variables like next page index can only be used in Listview widget.

Thanks for your help.