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Build API client tests with Vitest and MockHandler. Validate OpenAPI contract compliance with table-driven tests and minimal mocks.
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| name | api-testing |
| description | Build API client tests with Vitest and MockHandler. Validate OpenAPI contract compliance with table-driven tests and minimal mocks. |
docs/testing/api-testing.mdMockHandler to stub external API responses — no real HTTP calls in unit testsResult<T, AppError> return values (both .ok and .err paths)docs/testing/api-testing.mddocs/web-frontend/twada-tdd.mddocs/backend/server-architecture.md - MockHandler and VSPOApi client patternsNext.js 15 Pages Router frontend development. Feature-based + Container/Presenter pattern, MUI v7 + Emotion CSS-in-JS.
Next.js 15 + Cloudflare Workers + @vspo-lab/api client. Result-type error handling, OpenAPI-generated client, feature-based architecture.
PR/code review based on architecture rules. Detects violations of UseCase implementation rules, Result type, and JSDoc conventions.
Create a conventional commit. No Co-Authored-By trailer.
Design tokens (OKLch), color palette, typography, UI patterns, accessibility (WCAG 2.2).
Update docs/domain alongside feature additions and spec changes, maintaining a history of specification decisions.