gridresponse.php

<?php
 
namespace Bitrix\Main\Grid\UI;
 
use Bitrix\Main\Application;
use Bitrix\Main\Engine\Response\Json;
use CMain;
 
class GridResponse implements \Bitrix\Main\Grid\GridResponse
{
    private array $messages = [];
 
    public function addMessage(string $message, string $type): void
    {
        $this->messages[] = [
            'TYPE' => $type,
            'TEXT' => $message,
        ];
    }
 
    public function isSendable(): bool
    {
        return ! empty($this->messages);
    }
 
    public function send(): void
    {
        global $APPLICATION;
 
        $APPLICATION->RestartBuffer();
 
        $response = new Json([
            'messages' => $this->messages,
        ]);
 
        Application::getInstance()->end(200, $response);
    }
}