API Connector build for Google Data Studio

Wanting an API connector for data from school managment system to Data studio
API example below
https://api.stpeters.school.nz/app/kamar/CalendarDays
https://api.stpeters.school.nz/app/kamar/GetHolidays
https://api.stpeters.school.nz/app/kamar/GetTermDates
https://api.stpeters.school.nz/app/kamar/Subjects