Files
HealthLog/docs/api
Marc-André Bombeck b00187e659 docs(api): correct the drifted request/response contracts
Field-by-field comparison of the handlers against the registered Zod
schemas across measurements, workouts, medications, daily and auth. The
spec was corrected to match the handlers; no runtime behaviour changed.

Measurements:
- GET /api/measurements returns `{ measurements, meta: { total, limit,
  offset, … } }` on all seven of its modes. The spec claimed a top-level
  `total` that no arm has ever emitted.
- The list rows are stored rows minus the notes ciphertext, or synthesised
  day-sum / sleep-segment rows, or pre-folded aggregate buckets. The
  resource declared seven fields; the rest are now on the wire contract.
- POST accepts a bare ARRAY body (the combined blood-pressure write) and
  answers with an array, and returns 409 on the dedup index.
- GET/PUT/DELETE /api/measurements/{id} carried no path entry at all.

Workouts: both GET operations run the module gate and answer 403
`module.disabled`; the reusable block existed but was never spread. The
batch ingest stays deliberately ungated and undocumented for it.

Medications: `nextDueAt` / `nextDueOverdue` are computed by the read paths
and absent from the create/update results, so they cannot be required on
the shared shape (the list row keeps them required). `stockUnitsRemaining`
sums a Decimal(12,4) and is fractional, not an integer. The cadence chips
object documented four fields that do not exist and missed the five that
do. `IntakeSource` admits APPLE_HEALTH.

Auth: the token bundle had its optionality inverted — `user` is always
returned, the token pair only for native callers. Adds the undocumented
403 `oidc_only`, the passkey 403/404, the TOTP enrolment 409s, the
attestation 400, the no-key-registered 409, the security-key 404s, the
refresh `revoke` response shape, and the path/query parameters three
operations read but never declared.

Daily was checked and is accurate; so are the batch ingest, series,
series-batch, bulk-delete, restore and by-external-ids routes.
2026-07-19 11:15:17 +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.