Magento – Get last added product in minicart magento2

Have you overridden or extended your minicart.js script?

2.1 introduced some changes to these files to resolve previous issues with the minicart values not updating on page load. Assuming you have overridden this file or extended some of its functions, you'll have to bring it in line with the changes that were introduced with 2.1.

Here's the commit with the relevant changes: https://github.com/magento/magento2/commit/eec3cf17bc5deae71c83c797d1339de46cf6905f Namely, cart() was replaced with call to new function getCartParam().

Hope this helps resolve your issue!

For Magento 2

Pop up minicart when I add a product to the cart magento 2

I'm referring to Open header cart when product added to cart & https://stackoverflow.com/questions/13841390/toggle-dropdown-mini-cart-when-product-added-to-basket which are in Magento 1.

In Magento 2 we can create Event Observer for this

app\code\Custom\Module\etc\frontend\events.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="controller_action_predispatch_checkout_cart_add">
        <observer name="open_mini_cart" instance="Custom\Module\Observer\OpenMiniCartObserver" />
    </event>
</config>

app\code\Custom\Module\Observer\OpenMiniCartObserver.php

namespace Custom\Module\Observer;

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

class OpenMiniCartObserver implements ObserverInterface {

    protected $_urlManager;
    protected $redirect;

    public function __construct(
\Magento\Framework\UrlInterface $urlManager, \Magento\Framework\App\Response\RedirectInterface $redirect
) {
        $this->_urlManager = $urlManager;
        $this->redirect = $redirect;
    }

 public function execute(\Magento\Framework\Event\Observer $observer) {

    $actionName = $observer->getEvent()->getRequest()->getFullActionName();
    $controller = $observer->getControllerAction();
    $objectManager = \Magento\Framework\App\ObjectManager::getInstance();

    $cartUpdated = $objectManager->get('Magento\Checkout\Model\Session')->getCartWasUpdated(false);

    if ($cartUpdated) {
        // open mini cart
    }
    $this->redirect->redirect($controller->getResponse(), $this->redirect->getRefererUrl());
}

Still Some JS Stuff missing