Files
HealthLog/src
Marc-André BombeckandClaude Opus 4.7 b9ade5b519 fix(api): address review findings — N+1, idempotency cache safety, device hijack guard
Three fixes from the 5-way review on PR #117:

1. Insights cards: replace per-medication N+1 query with single batched
   findMany + JS bucketing. For users with many active medications this
   collapses 10+ sequential round-trips into one.

2. Idempotency cache: only persist 2xx/3xx and validation 4xx responses.
   401/403/408/429/5xx are now skipped — a stale 401 (token expired
   mid-flight) or transient 5xx must not be replayed for 24h. Adds a
   defence-in-depth check that refuses to cache any body containing
   "hlk_" so a future caller wrapping an auth route in withIdempotency
   cannot leak a freshly-issued bearer token through the cache.

3. Devices: reject cross-user token re-registration with 409. Prior
   behaviour silently transferred ownership on findUnique-by-token,
   which would let anyone who learns/guesses an APNs token redirect
   another user's pushes. Audit-logs the denial with reason.

Tests adjusted: device-hijack test now expects 409, plus a new test
for same-user re-registration. 279/279 tests passing.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-03 22:08:53 +02:00
..
2026-03-10 20:14:33 +01:00