ErrorHandlerService has zero dependency on Express — it's a plain
"map an error to {status, body}" service that works identically
behind any HTTP framework. It had no business living in a package
named express-tools.
Extracted HttpError, ErrorHandlerService, and ErrorHandlingResult
into a new packages/error-tools package (same tsc-build-to-dist
pattern as shared/express-tools). express-tools now only keeps the
actual Express-specific layer: ExpressServer, wrapAsyncHandler, and
createErrorMiddleware (which adapts ErrorHandlerService, imported
from error-tools, onto Express).
- packages/error-tools: new package, depends on shared + zod
- packages/express-tools: drops zod dependency, adds error-tools
dependency for error-middleware.ts's type import
- apps/api: adds error-tools dependency; app.ts, auth.service.ts,
require-auth.ts now import HttpError/errorHandlerService from
error-tools instead of express-tools
- apps/api/Dockerfile: adds COPY for packages/error-tools in the
runtime stage
- specs/error-handling.md, specs/backend-architecture.md, README.md
updated to reflect the new package split
Verified: pnpm lint, pnpm build (all packages, correct dependency
order), pnpm test (9/9 Mocha), pnpm test:bdd (5/5 Cucumber), full
Docker rebuild + compose up (no crash-loop), curl + browser checks
of /health, unknown-route 404, signup (201), duplicate-email 409
(code 4001 EMAIL_ALREADY_IN_USE) — all going through the moved
ErrorHandlerService/HttpError correctly.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Nicolas
95bd8fab87