section.php

<?php
 
 
namespace Bitrix\Catalog\RestView;
 
 
use Bitrix\Main\Error;
use Bitrix\Main\Result;
use Bitrix\Rest\Integration\View\Attributes;
use Bitrix\Rest\Integration\View\DataType;
use Bitrix\Rest\Integration\View\Base;
 
final class Section extends Base
{
 
    public function getFields()
    {
        return [
            'ID'=>[
                'TYPE'=>DataType::TYPE_INT,
                'ATTRIBUTES'=>[
                    Attributes::READONLY
                ]
            ],
            'DESCRIPTION'=>[
                'TYPE'=>DataType::TYPE_STRING
            ],
            'DESCRIPTION_TYPE'=>[
                'TYPE'=>DataType::TYPE_STRING
            ],
            'IBLOCK_SECTION_ID'=>[
                'TYPE'=>DataType::TYPE_INT
            ],
            'IBLOCK_ID'=>[
                'TYPE'=>DataType::TYPE_INT,
                'ATTRIBUTES'=>[
                    Attributes::REQUIRED
                ]
            ],
            'ACTIVE'=>[
                'TYPE'=>DataType::TYPE_CHAR
            ],
            'CODE'=>[
                'TYPE'=>DataType::TYPE_STRING
            ],
            'XML_ID'=>[
                'TYPE'=>DataType::TYPE_STRING
            ],
            'SORT'=>[
                'TYPE'=>DataType::TYPE_INT
            ],
            'NAME'=>[
                'TYPE'=>DataType::TYPE_STRING,
                'ATTRIBUTES'=>[
                    Attributes::REQUIRED
                ]
            ],
        ];
    }
 
    public function checkFieldsList($arguments): Result
    {
        $r = new Result();
 
        $error=[];
 
        if(count($error)>0)
            $r->addError(new Error('Required select fields: '.implode(', ', $error)));
 
        if(!isset($arguments['filter']['IBLOCK_ID']))
            $r->addError(new Error('Required filter fields: iblockId'));
 
        return $r;
    }
}