channel.php

<?php
 
namespace Bitrix\Pull\Controller;
use \Bitrix\Main\Error;
 
class Channel extends \Bitrix\Main\Engine\Controller
{
    public function getPublicIdsAction(array $users)
    {
        $config = \Bitrix\Pull\Channel::getPublicIds([
            'TYPE' => \CPullChannel::TYPE_PRIVATE,
            'USERS' => $users,
            'JSON' => true
        ]);
 
        if (!$config)
        {
            $this->errorCollection[] = new Error("Push & Pull server is not configured", "SERVER_ERROR");
            return null;
        }
 
        return $config;
    }
}