Files
HealthLog/docs/api
Marc-André Bombeck 4a1bca0761 Publish the visit contract and name visits at the point of consent
Query keys land in the central factory before any surface reads them,
because the lint rule that bans a bare array means the first component
listing visits cannot compile without a slot. There is deliberately no
server-side cache invalidator beside them: nothing cached reads a visit
yet, and a sweep over caches nobody reads would look like coverage
without being any. The module says so at the place a reader would go
looking.

The OpenAPI table publishes seven paths with everything resolved — the
practitioner as an object rather than an id, each link with its label
and date, the appointment's next due instant computed. What it does not
publish is the reminder origin enum, which still reads with two members:
the third value exists in storage and reaches no response, because every
preventive-care read excludes it. Keeping that contract closed is why
the exclusion is worth a guard.

Classifying visits under the existing health-background domain widens
what that domain grants. Somebody who shared it so a relative could see
an allergy list now also shares every appointment and the address book.
That is stated where it is agreed to rather than left in a code comment:
the consent screen's sentence names visits and practices, in all six
locales, and the activity feed gains a verb line for each of the eight
new delegated actions so an owner reads what was done rather than
'made a change'.
2026-08-08 08:11:54 +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.