mercadodevida/work/artifacts/F-009/implementer.md

Implementer — F-009 Brands module

done -> work/artifacts/F-009/implementer.md

Summary

Implemented brands as an independent backend module with slug URLs and SEO metadata, added product-brand assignment to catalog, and extended public product search with a brand filter.

Changed files

• project/src/modules/brands/domain/brand.ts
• project/src/modules/brands/domain/errors.ts
• project/src/modules/brands/domain/ports.ts
• project/src/modules/brands/application/brand-use-cases.ts
• project/src/modules/brands/infrastructure/pg-brand-repository.ts
• project/src/modules/brands/api/brands.routes.ts
• project/src/modules/brands/index.ts
• project/migrations/007_brands.js
• project/src/modules/catalog/domain/product.ts
• project/src/modules/catalog/domain/errors.ts
• project/src/modules/catalog/domain/ports.ts
• project/src/modules/catalog/application/product-use-cases.ts
• project/src/modules/catalog/infrastructure/pg-product-repository.ts
• project/src/modules/catalog/api/catalog.routes.ts
• project/src/app/build-app.ts
• project/src/app/tests/brands.itest.ts
• project/src/app/tests/catalog.itest.ts
• work/artifacts/F-009/architect.md
• backlog/features.json
• work/current.md

Acceptance traceability

1. Duplicate brand slug returns HTTP 409
   • Implemented through brands_brands.slug UNIQUE and BRAND_SLUG_EXISTS mapping.
   • Covered by project/src/app/tests/brands.itest.ts.
2. Products list filterable by brand
   • GET /products/search?brandSlug=<slug> filters active products by stored catalog_products.brand_id joined to brands_brands.slug.
   • Covered by project/src/app/tests/catalog.itest.ts.
3. Public URL is /marca/<slug>
   • Implemented GET /marca/:slug and serialized url: /marca/<slug>.
   • Covered by project/src/app/tests/brands.itest.ts.
4. verify.sh green
   • Verified after implementation.

Commands run

• cd project && npm run typecheck — PASS
• cd project && npm test — PASS: 59 passed, 31 skipped (DB integration skipped without TEST_DATABASE_URL)
• cd project && npm run lint — PASS after Prettier normalization
• cd project && npm run build — PASS
• cd project && npm run lint:boundaries — PASS: 79 files checked
• ./scripts/verify.sh — PASS

Notes

• No new npm dependencies.
• Brand mutation routes are admin-only via shared auth injected from the composition root.
• Public brand reads are unauthenticated.
• Catalog references brands_brands only at repository/SQL boundary; it does not import brands module internals.
• Documentation stage should update README/API notes because new user-facing brand endpoints, product brand assignment, and product error code were added.