Files
HealthLog/docs/api
Marc-André Bombeck e31c66e959 fix(security): scrub wide events at the builder, encrypt the replay cache
Three leaks of the same class - data leaving the process unprotected.

addMeta and addExternalCall wrote their values verbatim while setError
and setHttp scrubbed, so the builder's redaction contract held for two
entry points out of four. The finished event is serialised whole to
stdout and the log store, which made meta a trusted sink by accident: a
Telegram request timeout put the bot token there, and the AI provider
chain fed upstream error bodies through it. Both now scrub, at any depth.

Scrubbing cannot help with the second half. A gateway that echoes the
request it rejected echoes the prompt, and on that path the prompt
carries the health snapshot; no pattern separates that from any other
text. Upstream bodies are therefore classified rather than quoted - the
diagnostic question is which rejection occurred and whether it repeats,
which a classification answers without the content.

The idempotency replay cache stored response bodies unencrypted. The
create paths echo their own decrypted payload, so cycle notes, mood text
and allergy reactions sat in cleartext for 24 hours in a column that
lands in every backup; the existing guard missed it because it matches
secret shapes and health data is not secret-shaped. Bodies are encrypted
now, and when encryption is unavailable the response is not cached at
all rather than written in the clear.

chore(release): v1.30.18
2026-07-19 01:28:20 +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.