Magento 2: How to reindex specific indexer method in Magento 2 programatically

Question

I can reindex a specific indexer method by following way in Magento 1.x

$process = Mage::getModel('index/indexer')->getProcessByCode('catalog_product_price');
$process->reindexAll();

How to reindex catalog_product_price indexer in Magento 2.x

Answer 1

We can try with Magento\Framework\Indexer\IndexerInterfaceFactory.

    /**
     * @var \Magento\Framework\Indexer\IndexerInterfaceFactory
     */
    protected $indexerFactory;


    /**
     * @param IndexerInterfaceFactory $indexerFactory
     */
    public function __construct(
        \Magento\Framework\Indexer\IndexerInterfaceFactory $indexerFactory,
    ) {
        $this->indexerFactory = $indexerFactory;

    }

    /**
     * @param string $indexerId
     * @return \Magento\Framework\Indexer\IndexerInterface
     */
    public function getIndexer($indexerId)
    {
        return $this->indexerFactory->create()->load($indexerId);
    }

    public function executeIndex() {

        this->getIndexer('catalog_product_price')->reindexAll();
    }