HTTP Webhook

Send submission data to any URL the moment a form is submitted. Use this to trigger backend workflows, update a CRM, write to a database, or connect to services not natively supported.

Setup

1. In Formboost, open your form → Integrations tab → Webhook
2. Enter your endpoint URL
3. Choose the HTTP method: POST, GET, PUT, or PATCH
4. Optionally add custom headers (JSON format — see below)
5. Save

Custom Headers

Add headers as a JSON object. Useful for authentication or content-type requirements:

1{
2  "Authorization": "Bearer YOUR_TOKEN",
3  "X-API-Key": "YOUR_API_KEY"
4}

Example Payload

Formboost sends submission data as a JSON body (for POST, PUT, PATCH) or as query parameters (for GET):

1{
2  "name": "John Doe",
3  "email": "[email protected]",
4  "message": "Hello, I'd like to learn more.",
5  "fb_formId": "ep_abc123",
6  "fb_formName": "My Contact Form",
7  "fb_dashboardUrl": "https://formboost.app/dashboard/submissions/sub_xyz789"
8}

Reserved Keys

The following keys are always included automatically. Avoid using these names in your form fields to prevent conflicts:

Testing

Use a service like webhook.site to inspect the exact payload Formboost sends before wiring it to your production endpoint:

1. Open webhook.site and copy the unique URL
2. Paste it into the webhook URL field in Formboost and save
3. Submit your form (or click Send Test in the Integrations tab)
4. Inspect the full request — headers, body, and all field values — on webhook.site

Retry Behavior

If your endpoint returns a non-2xx status code or times out, Formboost retries the delivery up to 3 times with exponential backoff. After all retries fail, the event is logged in your dashboard under Integrations → Delivery Logs.

Troubleshooting

Notes

• Webhook URLs must be publicly accessible. Local development servers (localhost, 127.0.0.1) will not work.
• Formboost sends Content-Type: application/json for all non-GET requests.
• Delivery logs showing all attempts and response codes are available in your dashboard under Integrations → Delivery Logs.