IBlockDataService.php

<?php
 
namespace Bitrix\Lists\Api\Service\IBlockService;
 
use Bitrix\Lists\Api\Data\IBlockService\IBlockElementToAdd;
use Bitrix\Lists\Api\Request\IBlockService\AddIBlockElementRequest;
use Bitrix\Lists\Api\Response\IBlockService\AddIBlockElementResponse;
use Bitrix\Main\ArgumentOutOfRangeException;
use Bitrix\Main\Error;
 
final class IBlockDataService
{
    public function getIBlockElementToAddObject(
        AddIBlockElementRequest $request,
        AddIBlockElementResponse $response
    ): ?IBlockElementToAdd
    {
        $elementToAdd = null;
        try
        {
            $elementToAdd = IBlockElementToAdd::createFromRequest($request);
        }
        catch (ArgumentOutOfRangeException $exception)
        {
            $response->addError(new Error($exception->getMessage(), $exception->getParameter()));
        }
 
        return $elementToAdd;
    }
}