Webhooks: let services notify your bot Intermediate

Instead of your bot checking over and over, a webhook lets a service tap your bot on the shoulder the moment something happens.

Before you start

• The Grok Bot app, installed and signed in. New? See where to download it and installing and signing in.
• A store or service that offers webhooks.

1. Polling vs webhooks

Polling is asking "anything new?" every few minutes. A webhook is the service calling a web address you give it when something happens, like a new order or a shipping update. It's faster and uses fewer requests.

2. How it works

1. You run a small web address (an endpoint) that can receive messages.
2. In the service's settings, you register that address and choose events, like "order created".
3. When the event happens, the service sends your endpoint a POST request with the details in JSON.
4. Your code checks the signature, a code the service calculates with a shared secret, to prove the message is real.
5. Your code replies quickly with a 200 status, then does the slow work afterward.

3. Why reply fast?

Services usually wait only a short time. If you're slow or fail, they may retry, so your code should handle the same event twice without doing the job twice.

4. Where you'll see webhooks

Shopify, WooCommerce, BigCommerce and many others offer them. See each platform guide in this section.

5. Let your bot help

Explain how to receive Shopify order webhooks on a Cloudflare Worker and verify the signature, using the official docs.

Facts about the Grok Bot app come from Cursor's official Grok Bot documentation. See e.g. Shopify webhooks and WooCommerce webhooks. Menus and services change; if something looks different, check the official docs or ask your bot.