public IActionResult Get(int id)
 {
     Staffs.Staffs staff = StaffApiHelper.GetStaffs(id, StaffList);
     if (staff == null)
     {
         return(NotFound());
     }
     else
     {
         return(Ok(staff));
     }
 }
 public IActionResult Post([FromBody] object json)
 {
     StaffList.Add(StaffApiHelper.InsertStaff(json, StaffList));
     staffdb.WriteData(StaffList);
     return(Ok(StaffList[StaffList.Count - 1]));
 }