appform.php

См. документацию.

<?php
 
namespace Bitrix\Rest\Controller;
 
use Bitrix\Bitrix24\CurrentUser;
use Bitrix\Main\ArgumentException;
use Bitrix\Main\Engine\Controller;
use Bitrix\Main\Engine\ActionFilter;
use Bitrix\Main\Engine\Response\AjaxJson;
use Bitrix\Main\Error;
use Bitrix\Main\Loader;
use Bitrix\Main\SystemException;
use Bitrix\Main\Web\Json;
use Bitrix\Pull\Event;
use Bitrix\Rest\AppTable;
use Bitrix\Rest\FormConfig\EventType;
use Bitrix\Rest\PullTransport;
 
class AppForm extends Controller
{
    public function showAction(string $config, \CRestServer $server = null): array
    {
        try
        {
            $transport = new PullTransport();
        }
        catch (\Exception $exception)
        {
            return [
                'error' => 'NOT_INSTALLED_MODULE',
                'error_description' => $exception->getMessage()
            ];
        }
 
        $appForm = new \Bitrix\Rest\AppForm($config);
 
        return ['success' => $appForm->sendShowMessage($transport)];
    }
 
    public function getConfigAction(string $clientId, string $type, array $formData = []): AjaxJson
    {
        try
        {
            $app = new \Bitrix\Rest\App($clientId);
            $responseData = [
                'config' => $app->fetchAppFormConfig($formData, EventType::from($type))
            ];
 
            return AjaxJson::createSuccess($responseData);
        }
        catch (ArgumentException $e)
        {
            $this->errorCollection->setError(new Error($e->getMessage()));
        }
    }
 
    public function configureActions(): array
    {
        return [
            'show' => [
                '+prefilters' => [
                    new ActionFilter\Scope(ActionFilter\Scope::REST),
                ],
            ],
        ];
    }
}