API
Intermediate
10 min
Updated May 18, 2026API Error Model
Use a predictable error payload so UI states and retries are deterministic.
apierrorscontractsui
Prerequisites
- • Project builds locally.
- • Relevant files identified.
- • Feature branch is up to date.
Outcomes
- • Clear implementation scope
- • Repeatable validation
- • Documented follow-up checks
note: Stay concrete
Use project-specific files, commands, and routes instead of generic instructions.
tip: Always verify
Attach at least one command or page check to prove the change works.
Why this matters
API Error Model directly affects delivery quality and support load, so this page should stay practical and specific.
Implementation notes
Apply api error model changes in small increments and keep examples mapped to existing repository files.
Verification
Run relevant checks and verify route behavior in browser and through CLI where applicable.
Code examples
Practical command
bash
npm run typecheck
npm run lint
npm run build