employeeservice.php

См. документацию.

<?php
 
namespace Bitrix\Calendar\Integration\HumanResources;
 
use Bitrix\HumanResources\Item\Structure;
use Bitrix\HumanResources\Service\Container;
 
class EmployeeService
{
    public function getUserIds(int $limit, int $offset): array
    {
        if (!$this->isModuleInstalled())
        {
            return [];
        }
 
        $structure = Container::getStructureRepository()->getByXmlId(Structure::DEFAULT_STRUCTURE_XML_ID);
        $rootNode = Container::getNodeRepository()->getRootNodeByStructureId($structure->id);
 
        $employees = Container::getNodeMemberService()->getPagedEmployees(
            $rootNode->id,
            true,
            $offset,
            $limit
        );
 
        $userIds = [];
 
        foreach ($employees as $employee)
        {
            $userIds[] = $employee->entityId;
        }
 
        return $userIds;
    }
 
    private function isModuleInstalled(): bool
    {
        return \Bitrix\Main\Loader::includeModule('humanresources');
    }
}