Magento 2: Change the action of add to cart button on product and category pages to checkout page?

Question

I am new to Magento 2 and want to change the action of add to cart button on product and category pages directly to the checkout page.

Magento 2: Skipping Shopping Cart Page after Add to Cart

I referred to the solution given in above link, but not able to find the directory which is required to be updated -- event.xml

Answer 1

Assume that add to Cart url is www.example.com/checkout/cart/add.

In this case, you can use event checkout_cart_add_product_complete .

Using this event,You can Redirect to last page from here you have click on AddtoCart

Observer

<?php
# app/code/Devamitbera/CartRedirect/Observer/ObserverToskipCartgotoCheckout
namespace Devamitbera\CartRedirect\Observer;

use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\App\Request\DataPersistorInterface;
use Magento\Framework\App\ObjectManager;

class ObserverToskipCartgotoCheckout implements ObserverInterface
{


    /**
     *
     * @var \Magento\Framework\UrlInterface
     */
    protected $_urlManager;


    /**
     * @var \Magento\Framework\Message\ManagerInterface
     */
    protected $messageManager;

    /**
     * @var \Magento\Framework\App\Response\RedirectInterface
     */
    protected $redirect;


    private $_pageConfig;

    /**
     * @param \Magento\Framework\App\ActionFlag $actionFlag
     * @param \Magento\Framework\Message\ManagerInterface $messageManager
     * @param \Magento\Framework\App\Response\RedirectInterface $redirect
     */
    public function __construct(
        \Magento\Framework\App\ActionFlag $actionFlag,
        \Magento\Framework\Message\ManagerInterface $messageManager,
        \Magento\Framework\App\Response\RedirectInterface $redirect,
        \Magento\Framework\UrlInterface $urlManager,
        \Magento\Framework\View\Page\Config $pageConfig     
    ) {
        $this->_actionFlag = $actionFlag;
        $this->messageManager = $messageManager;
        $this->_urlManager = $urlManager;
        $this->redirect = $redirect;

    }

    /**
     *
     * @param \Magento\Framework\Event\Observer $observer
     * @return void
     */
    public function execute(\Magento\Framework\Event\Observer $observer)
    {
        $request = $observer->getRequest();
        $response = $observer->getResponse();
        $product  = $observer->getProduct();
      if (!$request->isAjax()) {
            $url = $this->_urlManager->getUrl('checkout/index/index');
            //$this->_objectManager->get('Psr\Log\LoggerInterface')->critical($url);
            $request->setParam('return_url',$url);
        }
    }

}

event file:

<?xml version="1.0"?>
<!--
#app/code/Devamitbera/CartRedirect/etc/events.xml
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
        <event name="checkout_cart_add_product_complete">
        <observer name="forrceToCheckout" instance="Devamitbera\CartRedirect\Observer\ObserverToskipCartgotoCheckout" />
    </event>
</config>