Implement Hospitable webhooks with correct retry and idempotency handling
domain: developer.hospitable.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Create a webhook subscription and choose which types to receive: Properties, Reservations, Messages, and/or Reviews.
Implement a POST endpoint that returns 200 OK promptly; anything else is treated as a failed delivery.
Branch handling on the payload's action field: reservation.created / reservation.updated, property.updated / property.merged, message.created, review.created.
Build idempotent handlers, since failed deliveries are retried up to 5 times with exponential backoff (roughly 1s, 5s, 10s, 1h, 6h) and may redeliver the same event.
For message.created events, filter on sender before triggering guest-facing automations, since this event fires for messages from either the guest or the host.
Known gotchas
After 5 failed retries spanning up to 6 hours, Hospitable stops trying — add a periodic reconciliation poll against the reservations/messages endpoints as a backstop for permanently dropped events.
Webhook types are opt-in per subscription; forgetting to enable one (e.g., Reviews) means silently receiving no events for it.
Because retries can redeliver the same event, dedupe on a stable key (e.g., reservation ID plus updated timestamp) rather than assuming exactly-once delivery.
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