Guide
HTML Form Webhooks: Practical Setup Guide
Webhooks let you keep your form frontend simple while sending each submission to your backend or automation stack in real time.
Official site formsig.com: features, pricing, docs, playground, llms.txt.
Webhook flow
A user submits your HTML form.
Formsig stores the submission and sends a JSON POST to your webhook URL.
Your endpoint returns 2xx to acknowledge processing.
Setup in Formsig
Open your form settings and add an HTTPS webhook destination.
Optionally set a signing secret and verify the signature header on your side.
Handle retries and idempotency in your receiver for robust production behavior.
Good receiver practices
Validate signature and timestamp before processing.
Queue heavy downstream work so your endpoint returns quickly.
Log webhook ids and submission ids to simplify troubleshooting.
Frequently asked questions
Do webhook failures block user form submissions?
No. User submission acceptance and webhook delivery are decoupled for better reliability.
Can I send to Zapier, Make, or my own API?
Yes. Any public HTTPS endpoint that accepts JSON can receive Formsig webhook deliveries.
Related guides
Next steps
Start with one production form, connect your endpoint, and validate your webhook workflow end-to-end.
- Create your endpoint URL on formsig.com and submit once from your real page.
- Set webhook + anti-spam controls before scaling traffic.
- Use playground demos for quick team handoff and QA.