Setup product update/delete webhook in node.js app

[Nabeel77]

Hi,

I am trying to setup webhooks in my node.js app for product update and product delete events. So, when a merchant delete or update a product on their store in which my app is installed, i want to receive a notification on my node.js server. I have tried below.

const responseProductDeleteWebhookHandler = async (topic, shop, body) => {
    try {
      console.log(shop, body);
    } catch (err) {
      logger.error(err);
   }
};

Shopify.Webhooks.Registry.webhookRegistry.push({
    path: '/webhooks',
    topic: 'PRODUCTS_DELETE',
    webhookHandler: responseProductDeleteWebhookHandler,
});

const responseProductDelete =. await Shopify.Webhooks.Registry.register({
    shop,
    accessToken,
    path: '/webhooks',
    topic: 'PRODUCTS_DELETE',
    webhookHandler: responseProductDeleteWebhookHandler,
});

But, the problem is that, when i delete or update a product on my dev store, i am not getting any notification. How do i setup a webhook to receive notifications on my server once a product is deleted/updated?