comment.php

См. документацию.

<?php
 
namespace Bitrix\Bizproc\Controller\Workflow;
 
use Bitrix\Bizproc;
use Bitrix\Bizproc\Api\Request\WorkflowCommentService\MarkAsReadRequest;
use Bitrix\Bizproc\Api\Service\WorkflowCommentService;
use Bitrix\Main\Error;
 
class Comment extends Bizproc\Controller\Base
{
    public function markAsReadAction(string $workflowId, int $userId): ?bool
    {
        $currentUserId = (int)($this->getCurrentUser()?->getId());
 
        if ($currentUserId !== $userId)
        {
            $this->addError(new Error('access denied'));
 
            return null;
        }
 
        $service = new WorkflowCommentService();
        $service->markAsRead(new MarkAsReadRequest($workflowId, $userId));
 
        return true;
    }
}