Opbygning af veldesignede microservices kræver, at man håndterer udfordringerne i distribuerede systemer gennem etablerede mønstre — for servicekommunikation, datahåndtering, modstandskraft og observabilitet. Disse mønstre hjælper med at håndtere den iboende kompleksitet i microservices.
Kommunikations- og API-mønstre
✓ API GATEWAY → single entry point; centralizes cross-cutting concerns (routing, auth, etc.)
✓ SERVICE DISCOVERY → services find each other dynamically (registry) as instances change
✓ Sync (REST/gRPC) for request/response; ASYNC (events/queues) for decoupling → prefer
async/events to reduce coupling where possible
✓ BFF (Backend for Frontend) → tailored gateways per client type
