Magento2 - Add Custom Column in cart item table and insert data to custom column when product add to cart

i have added new column in 'quote_item' table. i want to add the data to custom column when user add any product to cart.


You can use event/observer to achieve this.

Use following codes in your module.


<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="checkout_cart_add_product_complete">
        <observer name="bialcheckout_product_add_to_cart" instance="Vendor\Module\Observer\ProductAddToCart" />


namespace Vendor\Module\Observer;

use Magento\Checkout\Model\Session;
use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Magento\Quote\Model\QuoteRepository;

class ProductAddToCart implements ObserverInterface
    public function __construct(
        Session $session,
        QuoteRepository $quoteRepository
        $this->session = $session;
        $this->quoteRepository = $quoteRepository;

    public function execute(Observer $observer)
        $quoteId = $this->session->getQuote()->getId();
        if ($quoteId) {
            $quote = $this->quoteRepository->get($quoteId);
            if (!$quote->getIsActive()) {

        $product = $observer->getEvent()->getDataByKey('product');
        /** @var \Magento\Quote\Model\Quote\Item $item */
        $item = $this->session->getQuote()->getItemByProduct($product);
        $itemId = $item->getId();
        $quoteItem = $quote->getItemById($itemId);
        $customValue = 10;  // Prepare your custom field value here
        $quoteItem->setCustomField($customValue); // Set custom field value
        return $this;

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