A flight booking can now hold an ordered chain of airports (e.g. FRA -> BER -> HND) instead of a single departure/arrival pair. The route is entered as a list of waypoints with a '+ add stop' button; each stop carries its own arrival and departure time plus the airline/flight number of the segment leaving it, while the whole booking keeps one price. Stored without a schema change: the existing reservation_endpoints rows carry the ordered waypoints (from/stop/to by sequence) and a metadata.legs array holds the per-leg detail. Top-level metadata (departure_airport/arrival_airport/airline/ flight_number) mirrors the first and last leg, so a single-leg flight persists exactly as before and legacy readers keep working.
@trek/shared
Single source of truth for TREK's API contracts, expressed as Zod schemas and consumed by both the server (request validation + inferred DTO types) and the client (typed requests/responses).
This package is part of the incremental NestJS + React 19 migration (see the "Brownfield Rewrite" board). It is intentionally dormant until modules start importing it — adding it changes nothing for users.
Rules
- One folder per domain:
src/<domain>/<domain>.schema.ts(+.spec.ts). - Domain-agnostic building blocks live in
src/common/. - A route is only considered migrated once its contract lives here.
- Schemas are the source of truth; server DTOs and client types are inferred from them
(
z.infer<typeof schema>), never hand-duplicated.
Consumption (dev)
Both apps resolve @trek/shared to this package's TypeScript source:
- Server (
tsx): viapathsinserver/tsconfig.json. - Client (
vite): viaresolve.aliasinclient/vite.config.ts(+pathsfor the type-checker).
Production packaging (Docker / workspace wiring) is introduced in card F2, when the server first depends on this package at runtime. Until then prod builds are untouched.
Not yet here
The canonical error envelope is finalised in card F5 (it must match TREK's current Express error responses byte-for-byte), so it is deliberately not invented in F1.