Mystars Faas Fulfilment Api Webhooks

generated: '2026-09-03'
method: searched
source: https://mystars.tg/openapi.json (webhooks.orderStatus) + https://mystars.tg/docs
spec_type: Webhooks
note: >-
  No AsyncAPI document is published. The event surface is a single signed order-status webhook,
  formally declared in the OpenAPI 3.1 webhooks section (orderStatus / operationId
  orderStatusWebhook) - captured here as the webhook catalog.
model: per-order callback_url passed in POST /v1/orders; no global subscription, no register-webhook endpoint
events:
  - name: orderStatus
    operation_id: orderStatusWebhook
    trigger: order reaches a terminal status
    terminal_statuses: [delivered, failed, reversed, expired]
    payload: application/json (declared in the OpenAPI webhooks section)
    signature:
      header: X-Faas-Signature
      scheme: hex HMAC-SHA256 of the exact raw request body under the webhook secret
      rotation: >-
        24-hour rollover after /api_rotate_webhook - header may carry multiple comma-separated
        signatures; accept if any matches.
    delivery:
      response_deadline_seconds: 5
      redirects_followed: false
      retry: non-2xx or timeout retried with exponential backoff, then dead-lettered
      stability: body and signature are stable across retries
history:
  - 'v1.3.0 (2026-06-21): terminal failed and expired events added (previously only delivered and reversed fired).'