docs: verify webhook signature helper

docs-v2/guides/verify-webhooks-from-nango.mdx

@@ -4,14 +4,24 @@ sidebarTitle: 'Verify webhooks from Nango'
 description: 'Step-by-step guide on how to verify the signatures of webhooks from Nango.'
 ---
 
-Validate webhook provenance by looking at the `X-Nango-Signature` header. 
+Validate webhook provenance by looking at the `X-Nango-Signature` header.
 
-It's a SHA-256 hash generated using the secret key found in the _Environment Settings_ in the Nango UI. 
+It's a SHA-256 hash generated using the secret key found in the _Environment Settings_ in the Nango UI.
 
 The webhook signature can be generated with the following code:
 
 <Tabs>
 
+<Tab title="Node SDK">
+
+```typescript
+async (req, res) => {
+    const signature = req.headers['x-nango-signature'];
+    const isValid = nango.verifyWebhookSignature(signature, req.body);
+}
+```
+</Tab>
+
 <Tab title="Javascript/Typescript">
 
 ```typescript
@@ -124,4 +134,4 @@ $hash = hash('sha256', $signature);
 
 </Tabs>
 
-Only accept a webhook if the `X-Nango-Signature` header value matches the webhook signature.
+Only accept a webhook if the `X-Nango-Signature` header value matches the webhook signature.

docs-v2/reference/sdks/node.mdx

@@ -1254,6 +1254,21 @@ const { data } = await nango.createConnectSession({
 ```
 </Expandable>
 
+
+# Webhook
+
+### Verify Webhook Signature
+
+Asserts that a Webhook is coming from Nango's backend.
+
+```js
+async (req, res) => {
+    const signature = req.headers['x-nango-signature'];
+    const isValid = nango.verifyWebhookSignature(signature, req.body);
+}
+```
+
+
 <Tip>
 **Questions, problems, feedback?** Please reach out in the [Slack community](https://nango.dev/slack).
 </Tip>