DevelopersGrandOS index
An event-driven hotel — with clear boundaries.
The GrandOS API is not public yet. Its design uses versioned resources, idempotent booking events and signed webhooks.
API previewResources
Hotels, room types, rate plans, inventory, bookings, payment status and messages receive stable identifiers.
- Versioned contracts
- Tenant controls
- Minimum necessary data
Events
The booking flow must tolerate duplicates, network failures and retries without creating duplicate reservations.
- Idempotency keys
- Signed deliveries
- Dead-letter queue with accountable status
Developers · GrandOS