public async Task <IActionResult> UpdateQuantityOfTheItem(string id, [FromBody] int quantity) { if (ModelState.IsValid) { var basket = await _basketService.ChangeQuantityoftheBasketItemAsync(id, quantity, GetCurrentUserId()); if (basket != null) { return(Ok(ViewHelper.MapToBasketViewModel(basket))); } return(BadRequest()); } return(BadRequest(ModelState)); }