Magento 2 | Event for success page

Question

what is the correct event which should fire when a customer ordered something and is being redirected to the success page. After the redirect to the success page the event should fire.

Thanks in advance!

Answer 1

you can use following event for success page.

checkout_onepage_controller_success_action

To get Order id

public function execute(\Magento\Framework\Event\Observer $observer)
    {
        $orderIds = $observer->getEvent()->getOrderIds();
        $orderId = $orderIds[0];

    }

Event Fire at

<?php
/**
 *
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Checkout\Controller\Onepage;

class Success extends \Magento\Checkout\Controller\Onepage
{
    /**
     * Order success action
     *
     * @return \Magento\Framework\Controller\ResultInterface
     */
    public function execute()
    {
        $session = $this->getOnepage()->getCheckout();
        if (!$this->_objectManager->get(\Magento\Checkout\Model\Session\SuccessValidator::class)->isValid()) {
            return $this->resultRedirectFactory->create()->setPath('checkout/cart');
        }
        $session->clearQuote();
        //@todo: Refactor it to match CQRS
        $resultPage = $this->resultPageFactory->create();
        $this->_eventManager->dispatch(
            'checkout_onepage_controller_success_action',
            ['order_ids' => [$session->getLastOrderId()]]
        );
        return $resultPage;
    }
}

Answer 2

Use below event which trigger in success page

 checkout_onepage_controller_success_action

its uses in below controller

<?php
/**
 *
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Checkout\Controller\Onepage;

class Success extends \Magento\Checkout\Controller\Onepage
{
    /**
     * Order success action
     *
     * @return \Magento\Framework\Controller\ResultInterface
     */
    public function execute()
    {
        $session = $this->getOnepage()->getCheckout();
        if (!$this->_objectManager->get(\Magento\Checkout\Model\Session\SuccessValidator::class)->isValid()) {
            return $this->resultRedirectFactory->create()->setPath('checkout/cart');
        }
        $session->clearQuote();
        //@todo: Refactor it to match CQRS
        $resultPage = $this->resultPageFactory->create();
        $this->_eventManager->dispatch(
            'checkout_onepage_controller_success_action',
            ['order_ids' => [$session->getLastOrderId()]]
        );
        return $resultPage;
    }
}