GET /api/nutrients now looks up the most recent nutrient.batch.ingest
audit row when the window is genuinely empty, and surfaces it as
lastAttempt only when that call landed nothing (inserted === 0 &&
updated === 0). A real success elsewhere is left alone, so an empty
window for an unrelated reason never gets reframed as a failure.
The lookup runs on the zero-rows path only, never on the happy path,
and stays counts-and-reason-codes only - no user-typed content, no
per-entry health values. The reason code never reaches the page as
text: each of the four closed skip reasons maps to its own human
sentence, and the two that have no useful action for the account
holder (unit_mismatch, upsert_failed) say plainly that the entries
couldn't be stored rather than inventing advice. day_invalid is the
one case worth naming a real cause for - a clock or time zone mismatch
on the sending side - without claiming it was a phone, since any
token holder can call this route.
This depends on AuditLog retention: cleanupOldAuditLogs prunes rows
past 365 days by default, so a dormant account's last failed attempt
can age out and the explanation silently reverts to the plain empty
state. Documented at the lookup for whoever next touches that job.
nutrient.batch.ingest only reached the durable AuditLog table when
inserted + updated > 0, so a batch where every entry was rejected
(unit mismatch, out-of-range value, invalid day, a write failure) left
the exact same empty trail as a phone that never called the endpoint
at all. That made an empty nutrient_intake_days table unanswerable
from the durable record - the question this surface exists to answer.
Record the call unconditionally, the same shape measurement.batch.ingest
and workout.batch.ingest already use (counts only, no per-entry health
values, no user-typed content), plus an aggregate skip-reason breakdown
so an operator can tell, from the row alone, that the phone posted and
why nothing landed.
HTTP status and the per-entry response shape are unchanged - a batch
endpoint returning 200 with per-entry outcomes on a partial failure is
the correct, documented contract and native clients already decode it.
Supplement-style intake written to Apple Health by nutrition apps —
vitamins, minerals, water, caffeine — can now sync as daily totals into a
dedicated NutrientIntakeDay store (migration 0241): composite (user, day,
nutrient) identity, re-post replaces, no soft delete, no rollup coupling.
A code-side catalog carries the 26 nutrient codes with canonical units,
plausibility caps, and EFSA dietary reference values (direction-aware;
chromium cites NIH ODS where EFSA declined a DRV).
Deliberately not a nutrition feature: no diary, no calories, no dashboard
surface. POST /api/nutrients/batch is gated behind the new opt-in
nutrients module (default off — with the module off the server refuses
ingest entirely), rate-limited, idempotency-wrapped, with per-entry
unit-mismatch and out-of-range skips. GET /api/nutrients serves a
catalog-ordered summary; the only visible surface is a read-only card
under Settings → Sources. Coach/correlation access is a later slice; the
iOS reading side is coordinated in the companion-app tracker.
Marc-André Bombeck