How To Represent Create New Employee Record By using Web API ?

How to represent create new employee record by web API ?
i work on project asp.net core 2.1

i create mvc controller employee controller and inside it i make create action result for create new employee view with
get type and show last record exist on database plus one as below

Code:

---

public IActionResult Create()

        {

          var model = new Employee();

            if (id == null)

            {

               

                model.EmployeeId = _repository.GetAll().Max(Employee => Employee.EmployeeId) + 1;

            }

            return View(model);

        }

---

I need to convert action result create to web API to connect to angular
so that
How to convert function action result create to web API ?
so that i create new web API controller

[Produces("application/json")]

[Route("api/Employee")]

public class EmployeeController : Controller

{
//how to write code for create by using web api

}