Files
HealthLog/docs/api
Marc-André Bombeck 959adec899 feat(api): DELETE /api/measurements/by-external-ids for iOS deletion-sync
HealthKit's API does not surface a stream of deleted UUIDs, so the iOS
HealthLog client performs a periodic 30-day reconciliation: it diffs
HealthKit's current UUID set against the server's externalIds and
posts the surplus here. This endpoint deletes the user's matching
rows and never touches another user's data (Prisma's deleteMany with
the userId predicate is the cross-user 404 guard).

Contract:
  - Body: { externalIds: string[] } with min 0, max 500 entries.
  - Auth: requireAuth() — session cookie or bearer.
  - Empty array: returns { deletedCount: 0 } with 200 (no-op, not a
    failure — matches the ingest path's symmetric tolerance).
  - Over-cap: 422 with errorCode "measurement.delete.too_large" so
    the iOS client can surface a specific diagnostic.

Integration coverage: happy path, cross-user 404 guard, empty array,
and batch-cap rejection. The cap (500) mirrors POST /measurements/batch
so the two surfaces share one operational ceiling.

OpenAPI: registered as DELETE on /api/measurements/by-external-ids
with the Measurements tag; req/res schemas reuse the same z.array cap
the runtime validator enforces. openapi.yaml regenerated.
2026-05-14 13:07:05 +02:00
..
2026-05-03 21:53:21 +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.

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, Feedback, BugReport, 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.