public async Task <IActionResult> AddIngredient(AddIngredientViewModel vm)
{
if (await _ingredientServices.IngredientWithThatNameExists(vm.Name))
{
ModelState.AddModelError(string.Empty, "Ingredient with that name already exists.");
return(View());
}
await _ingredientServices.AddAsync(vm.Name, vm.Type);
return(View());
}