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How to Get Order Item Collection by Item ID in Magento 2?

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In an eCommerce store, in order to maintain the inventory, you might require to get order item collection by item ID in Magento 2. The below-mentioned code can help you get order item collection by item ID in Magento 2.

Create Block file and use this code:

<?php
namespace MageDelight\Training\Block;
class Item extends \Magento\Framework\View\Element\Template
{
 public function __construct(
 \Magento\Framework\View\Element\Template $context,
 \Magento\Sales\Api\OrderItemRepositoryInterface $orderItemRepository,
 array $data = []
 ) {
 $this->orderItemRepository = $orderItemRepository;
 parent::__construct($context, $data);
 }
/* get order Item collection */
 public function getOrderItem($itemIid)
 {
 $itemCollection = $this->orderItemRepository->get($itemId);
 return $itemCollection;
 }
}

Now, Call function from Template file

$itemId = 10; // order item id
$getItemCollection = $block->getOrderItem($itemId);
echo $getItemCollection->getOrderId();
echo "<pre>";print_r($getItemCollection->debug());

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