How to represent create new employee record by web API ?

Problem

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 :

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
}

view source
print?

[Produces("application/json")]
[Route("api/Employee")]
public class EmployeeController : Controller
{
[HttpPost]
public IActionResult Create([fromBody] Empoyee mode)
{
if (mode != null)
{
// call insert procedure
}
return OK();
}
}
//Call the api from angular js
"text/javascript" src="~/scripts/angular.min.js">
"text/javascript">
function TestController($scope, $http) {
var data = { "Id": 3, "FirstName": "Test", "LastName": "User", "Username": "testuser", "IsApproved": true, "IsOnlineNow": true, "IsChecked": true };
$http.post(
'/api/Employee/Create',
JSON.stringify(data),
{
headers: {
'Content-Type': 'application/json'
}
}
).success(function (data) {
$scope.person = data;
});
}