Files
HealthLog/docs/api
Marc-André Bombeck 3ae5bfe1c0 Capture the schemas that annotated themselves into nothing
`.meta()` clones the schema in Zod 4 and registers the clone, so a bare
`schema.meta({ id, description })` statement registers nothing at all.
Forty-one of them sat across nine route modules. The ids they named —
`MeasurementType`, `MeasurementSource`, `LoginPasswordRequest`,
`CreateMeasurementRequest`, `CreateBatchWorkoutRequest` and thirty more —
reached `components.schemas` zero times, the descriptions written for them
were published nowhere, and every use site inlined an anonymous copy. A client
generated from the contract got duplicated nameless types where one named
model belongs, which is the part that matters, because the iOS client is why
the contract is published.

Forty of them now bind their clone, and every use site points at it. Where the
schema comes from `src/lib/validations/*` the import is aliased and the clone
takes the name the use sites already spell, so nothing mutates the runtime
validation schema. The seven that cross module boundaries are exported from
`./shared` and the eight consumers import them from there; importing the raw
schema from the validation module instead is exactly what inlined them.

Thirty-four named components appear where inline copies stood. Fully
dereferenced, the document differs by eighty-six added descriptions and
nothing else: no operation's request or response shape moves. `CoachPrefs`
was already force-registered in the index and finally carries its description.

Five ids legitimately stay out of `components.schemas` —
`ListMeasurementsQuery`, `ListAllergiesQuery`, `ListEncountersQuery`,
`SuggestEncounterQuery` and `ListPractitionersQuery`. The emitter expands a
`requestParams.query` object into inline `parameters`, so a query id has
nowhere to land; they stay in the assigning form for consistency.

Three findings the wiring turned up:

`CreateShareLinkRequest` and `HealthRecordExportRequest` were annotated in the
Coach module, which imported the two schemas for no other reason and never
referenced them. Both operations that send these bodies live in the
health-record module, so the annotations move there. Both descriptions
described a `sections` field: the export body has no such field and rejects it
with a 422, and the share-link body freezes scope through `selection` plus
`documentIds` / `documentOnly`. Publishing either sentence verbatim would have
published a lie, so both are corrected to the shape the routes actually take.

`CoachPlansListQuery` — the forty-first — named a component that nothing
referenced and that a query object could never reach. The operation publishes
its two parameters by hand, because the schema carries a cross-field
refinement the expansion cannot express, and every clause of the annotation is
already published on the operation and on both parameters. It is deleted
rather than left registering nothing.
2026-08-22 15:34:32 +02:00
..

HealthLog API Spec

openapi.yaml is the canonical OpenAPI 3.1 description for the HealthLog Next.js API. It is the source of truth for the native iOS client's DTO codegen.

The MCP server is documented separately — it is a distinct contract over JSON-RPC, not part of the REST OpenAPI spec:

Preview locally

Open an interactive Redoc preview in your browser:

npx @redocly/cli preview docs/api/openapi.yaml

Generate static HTML for sharing:

npx @redocly/cli build-docs docs/api/openapi.yaml --output docs/api/index.html

Validate

npx @redocly/cli lint docs/api/openapi.yaml

The spec is expected to be lint-clean (errors = 0). Some warnings are intentional:

  • no-server-example.com — http://localhost:3000 is the dev server.
  • operation-2xx-response / operation-4xx-response — webhook + redirect endpoints intentionally omit one or the other.
  • no-unused-components — ReminderPhase is exposed for client codegen even though no path response references it directly.

Layout

  • info — title, version (mirrored from package.json), description.
  • servers — production https://healthlog.bombeck.io plus http://localhost:3000 for local development.
  • tags — domain groupings (Auth, Measurements, Medications, Mood, Dashboard, Insights, Achievements, DoctorReport, Integrations, User, Tokens, Notifications, Onboarding, Health, Settings, Analytics, Export, AuditLog, Monitoring, Webhooks, Ingest, Admin).
  • securitySchemes:
    • bearerAuth — long-lived hlk_* API tokens issued via POST /api/tokens. Required on /api/ingest/medication.
    • sessionCookie — HttpOnly healthlog_session cookie set by the password and passkey login flows. Used by the web app and any iOS client running inside a web view.
  • components.schemas — DTOs for all routes plus the underlying Prisma models (e.g. Measurement, Medication, MedicationIntakeEvent, MoodEntry, User, DashboardLayout, ApiEnvelope, ApiError).
  • paths — all routes from src/app/api/**/route.ts, including the /api/admin/* family which is tagged Admin and marked internal.

Conventions

  • Successful responses use the envelope { data, error: null }.
  • Error responses use the envelope { data: null, error: '<message>' }.
  • Pagination uses limit + offset query parameters and a meta: { total, limit, offset } block on the response.
  • All timestamps are ISO 8601 / RFC 3339 (format: date-time) in UTC.
  • IDs are CUIDs (opaque strings).

Updating the spec

When adding or changing routes:

  1. Update the relevant route handler under src/app/api/**/route.ts.
  2. Mirror the change in openapi.yaml. Keep operationId camelCase and stable — the iOS codegen keys off it.
  3. Run npx @redocly/cli lint docs/api/openapi.yaml and resolve all errors. Warnings are tolerated when documented above.
  4. Bump info.version if the change is breaking for clients.