Fillo So Webhooks

generated: '2026-11-07'
method: searched
generator: extract-docs-artifacts.py (local)
source: https://fillo.so/docs/webhooks
sources:
- https://fillo.so/docs/webhooks
- https://fillo.so/docs/troubleshooting/webhook-signature-failed
- https://fillo.so/docs/notifications
description: Fillo webhooks deliver response events and draft abandonment notifications with signed payloads and at‑least‑once delivery.
events:
- event: response.created
  description: Emitted when a respondent submits a new response to a form.
- event: response.updated
  description: Emitted when a response is edited in a form that runs in update mode.
- event: draft.abandoned
  description: Emitted when a respondent leaves a save‑and‑resume form idle and the draft is abandoned.
delivery:
  signature: 'X-Fillo-Signature: Hex HMAC‑SHA256 of the raw request body, keyed with your signing secret'
  content_type: application/json
note: 'Optional receiver authentication can be configured per webhook using either a Bearer token (Authorization: Bearer <token>) or an X-API-Key
  header (X-API-Key: <key>). The signing secret is shown once when the webhook is created and is used only for verifying the X‑Fillo‑Signature
  header. The X‑Fillo‑Delivery‑Id header is stable across retries and should be used as an idempotency key.'
docs: https://fillo.so/docs/webhooks