v14: HKQuantityTypeIdentifierBloodKetones regressed — missing from enum (was fixed in v13 via #311)

[gvilomar]

Summary

HKQuantityTypeIdentifierBloodKetones is missing from the v14 QuantityTypeIdentifier enum. This is a regression of #311, which was fixed and shipped in v13 — the identifier is now gone again in v14.

Reproduction

import { queryQuantitySamples } from '@kingstinct/react-native-healthkit';

await queryQuantitySamples('HKQuantityTypeIdentifierBloodKetones', {
  limit: -1,
  filter: { date: { startDate: new Date(Date.now() - 86400000), endDate: new Date() } },
  unit: 'mmol/L',
});

Expected behavior

The call returns an array of QuantitySample (or [] if there are no samples), the same as any other blood-related identifier (HKQuantityTypeIdentifierBloodGlucose, HKQuantityTypeIdentifierBloodPressureSystolic, etc.).

Actual behavior

The call throws synchronously at the JS↔native bridge:

QuantityTypeModule.queryQuantitySamples(...): Cannot convert
"HKQuantityTypeIdentifierBloodKetones" to enum QuantityTypeIdentifier
- invalid value!

Severity — why this is high-impact, not just a missing identifier

The throw happens synchronously during the bridge's enum validation, before the returned Promise can construct. That means the standard error pattern fails:

// This .catch never runs — the throw escapes the Promise wrapper.
queryQuantitySamples('HKQuantityTypeIdentifierBloodKetones', ...).catch(() => []);

The exception bubbles up through any Promise.all it's bundled in, silently killing the entire batch read. In our codebase, BloodKetones is one of ~25 identifiers we read in parallel (vitals, body, sleep, activity, dietary). With BloodKetones in the batch, none of them came back — HRV, RHR, SpO2, weight, glucose, BP all silently failed for every backfill day. Took us several hours to diagnose because each individual q().catch(...) looked correct.

In v13 this was masked (the identifier returned empty samples silently — annoying but not destructive). In v14 the bridge is stricter and the throw escapes.

Affected files

• src/types/QuantityTypeIdentifier.ts — missing enum entry (regression of Add HKQuantityTypeIdentifierBloodKetones to QuantityTypeIdentifier enum #311)
• nitrogen/generated/ios/swift/QuantityTypeIdentifier.swift — missing Swift case (regression of Add HKQuantityTypeIdentifierBloodKetones to QuantityTypeIdentifier enum #311)

Suggestion: an end-to-end test that calls queryQuantitySamples with each identifier and asserts no sync throw might catch future regressions of this category.

Apple HealthKit reference

• Identifier: HKQuantityTypeIdentifierBloodKetones
• Unit: mmol/L (millimoles per liter)
• Available since: iOS 8.0
• Docs: https://developer.apple.com/documentation/healthkit/hkquantitytypeidentifierbloodketones

Workaround

For anyone who hits this before it's fixed: remove BloodKetones from your read list entirely. Casting won't help — the enum validation is at the native bridge layer, not the TypeScript layer. Manual entry from a check-in form is the only viable path until the identifier is restored.

Environment

• Library version: 14.0.0
• React Native: 0.81
• Expo SDK: 55
• iOS: 18.x

Related

• Add HKQuantityTypeIdentifierBloodKetones to QuantityTypeIdentifier enum #311 — original report, fixed in v13 (now regressed in v14)