public async Task <CreatePersonDto> CreatePerson(CreatePersonDto person)
{
var addedItem = await _context.Persons.AddAsync(new Person { Name = person.Name, GroupId = person.GroupId });
_context.SaveChanges();
return(new CreatePersonDto {
PersonId = addedItem.Entity.Id, Name = addedItem.Entity.Name, GroupId = addedItem.Entity.GroupId
});
}