CommentInfo.php

См. документацию.

<?php
 
namespace Bitrix\Im\V2\Controller\Chat\Message;
 
use Bitrix\Im\V2\Chat\Comment\CommentPopupItem;
use Bitrix\Im\V2\Controller\BaseController;
use Bitrix\Im\V2\MessageCollection;
 
class CommentInfo extends BaseController
{
    public function listAction(MessageCollection $messages): ?array
    {
        $commentInfo = new CommentPopupItem($messages->getCommonChatId(), $messages->getIds());
 
        return $this->toRestFormat($commentInfo);
    }
}