GEARS / W PRAKTYCE
Najtrudniejszą częścią integracji rzadko jest samo request/response. Ważniejsze są ownership, błędy, mapowanie, limity, retry, obserwowalność i zmiany po drugiej stronie.
Start with the contract
Define source of truth, data ownership, IDs, update direction and failure behaviour before wiring endpoints together.
Design for failure
Timeouts, retries, queues, idempotency and reconciliation matter whenever the integration affects money or operations.
Protect the experience
External latency and outages should not automatically become customer-facing outages.
GEARS approach
Keep boundaries explicit, log meaningful events and build recovery paths for the situations operators will actually face.
