This is a code challenge to test my problem solving skills and my coding skills in C#/API. This solution has been created with .Net Core 2.1 A study group is made of connected students close in their performance rank

Interface https://localhost:44336/index.html

https://localhost:44336/api/studentgroup Body (type: text/plain) { { '','','Simon','','Jose'}, { '','Sergey', '','Thomas',''}, { '','','','',''}, { '','Chris','','',''}, { '','Harry','', 'Roger',''}, { '','','','',''} }