BlogSquarespace Webhooks

How to Test Squarespace Webhooks

Squarespace webhooks notify you about commerce events like new orders, inventory changes, and form submissions on your site.

Squarespace Official Webhook Docs

1. Squarespace Webhook Events

Squarespace can send the following webhook events to your endpoint:

order.create
order.update
extension.uninstall
form.submission.create
inventory.update

2. Set Up a Test Endpoint with HookRay

Follow these steps to start receiving Squarespace webhooks for testing:

  1. Go to HookRay and click "Start Testing — Free" to get your unique webhook URL.
  2. Copy the URL (e.g., https://h.hookray.com/abc123).
  3. In your Squarespace dashboard, navigate to the webhook settings and paste the HookRay URL as your endpoint.
  4. Select the events you want to receive (see list above).
  5. Trigger a test event — HookRay will show the incoming webhook in real-time.

3. Sample Squarespace Webhook Payload

Here's an example of what a Squarespace webhook payload looks like:

payload.json
{
  "websiteId": "5f4d3c2b1a0e9f8d7c6b5a4e",
  "topic": "order.create",
  "data": {
    "orderId": "6602d6a11bf7aa0008f66c20",
    "orderNumber": "1042",
    "grandTotal": {
      "value": "89.00",
      "currency": "USD"
    },
    "fulfillmentStatus": "PENDING"
  },
  "createdOn": "2026-03-20T11:30:00Z"
}

4. Common Issues & Troubleshooting

Webhook not arriving?

Check that your endpoint URL is correct and publicly accessible. Squarespace cannot reach localhost URLs — use HookRay's cloud URL instead.

Getting 400 or 500 errors?

HookRay accepts any payload and returns 200 OK by default, so the issue is likely on Squarespace's side. Check your webhook configuration and event selection.

Need to verify webhook signatures?

Squarespace signs webhook requests for security. Use HookRay to capture the raw headers and body, then implement signature verification in your application code.

5. Next Steps

  • Use HookRay's webhook replay feature to re-send captured webhooks while building your handler
  • Enable smart parsing (Pro plan) to see Squarespace-specific fields highlighted automatically
  • Check the Squarespace webhook documentation for the complete event reference

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