Yes, especially when multiple Server Components need the same authorization, DTO, caching, and error behavior. Put database/API access in a server-only module such as `lib/data.ts` or `services/`, import `'server-only'`, authenticate inside every DAL function, and return plain DTOs rather than ORM instances. Wrap repeated reads in React `cache()`. Client Components must not import the DAL; expose a Server Action or Route Handler as the bridge.
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# Add a DAL
Yes, especially when multiple Server Components need the same authorization, DTO, caching, and error behavior. Put database/API access in a server-only module such as `lib/data.ts` or `services/`, import `'server-only'`, authenticate inside every DAL function, and return plain DTOs rather than ORM instances. Wrap repeated reads in React `cache()`. Client Components must not import the DAL; expose a Server Action or Route Handler as the bridge.
