Fettle Sh Webhooks

generated: '2026-10-30'
method: searched
generator: extract-docs-artifacts.py (local)
source: https://fettle.sh/docs/webhooks
sources:
- https://fettle.sh/docs/webhooks
- https://fettle.sh/docs/webhooks.md
description: Fettle webhook events and delivery details.
events:
- event: triggered
  description: An incident opened on a monitor or heartbeat; a repeat alert for an incident still open is another triggered delivery with the
    same incident id.
- event: resolved
  description: The incident closed; incident.resolved_at is set.
- event: ssl_expiry
  description: An SSL monitor's certificate entered its warning window; incident is null and ssl carries days_left, expires_at, issuer and subject.
- event: test
  description: Sent by the test button on the channel; source.name is "Fettle test event" and its id is random.
delivery:
  signature: X-Fettle-Signature
  content_type: application/json
note: The signature is a sha256= hex HMAC‑SHA256 of the timestamp header, a dot, and the raw request body, keyed with the channel’s signing secret.
  The timestamp header (X-Fettle-Timestamp) is also signed and must be within five minutes of the receiver’s clock. The delivery id is provided
  in X-Fettle-Delivery and is constant across retries.
docs: https://fettle.sh/docs/webhooks