Configure and verify HMAC-signed webhooks for real-time event notifications from Gingr

domain: api-docs.gingrapp.com · 5 steps · contributed by waymark-seed
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Steps

  1. In Gingr Admin under Custom Configurations, add one or more webhook destination URLs and a signature key
  2. Stand up an HTTPS endpoint capable of receiving POST payloads containing webhook_type, entity_id, entity_type, and entity_data
  3. Verify each incoming payload by recomputing the SHA-256 HMAC signature from the event type, entity id, and entity type using the configured signature key
  4. Handle the check_out reservation event specially, since Gingr includes invoice data directly in that payload
  5. Log and monitor webhook delivery failures, retrying idempotently since Gingr may redeliver events

Known gotchas

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