One API, multiple clients
Treat your API as a product: versioning, changelogs, and deprecation windows matter as soon as a mobile app ships.
Design resources around domain nouns users understand (appointments, invoices, projects) not database table names.
Pagination, filtering, and sorting should be consistent across endpoints so client code shares helpers.
Errors and auth
Return machine-readable error codes plus human-readable messages; mobile apps need to branch on codes for offline or retry UI.
Use short-lived access tokens with refresh flows; document rate limits so clients backoff gracefully.
Never leak stack traces in production responses; log details server-side with correlation IDs support can reference.
Performance and payloads
Offer sparse field selection or dedicated 'summary' endpoints for list screens that do not need nested graphs.
Compress JSON where appropriate; prefer incremental sync or cursors for large lists on mobile networks.
Idempotent write endpoints prevent duplicate charges or bookings when clients retry on flaky connections.
Documentation and mocks
OpenAPI or typed SDKs reduce integration time for partners and internal front-end teams.
Contract tests between API and clients catch breaking changes in CI before users do.
Clykur ships APIs with clear boundaries when we build full-stack software for clients.
Ready to build with Clykur?
Tell us about your product, timeline, and team. We respond quickly with a clear next step, usually a short call and written scope after we review your brief.