public async Task <ActionResult <ShoppingListItem> > PostAsync([FromBody] ShoppingListItem listItem)
{
_logger.LogInformation($"Creating shopping list item...");
var created = await _service.CreateShoppingListItemAsync(
_mapper.Map <DAL.Entities.ShoppingListItem>(listItem));
_logger.LogInformation($"Created shopping list item [{created.Id}].");
return(CreatedAtAction(
"GetShoppingList",
new { id = created.ShoppingListId },
_mapper.Map <ShoppingListItem>(created)));
}