How to use http.get on multiple way?

As i am working on Flutter News APP. And i wan to fetch data from WordPress API to flutter.

I was success to get data by final res = await http.get(Uri.encodeFull(apiUrl + "posts?per_page=100"), headers: {"Accept": "application/json"});

but i want to use await http.get(); in multiple way to get multiple data.

Any help will be appreciate.