Example JSON

{
  "event_type": "glucose.reading",
  "event_version": "0.1",
  "subject_id": "local:iphone:demo-subject",
  "observed_at": "2026-03-29T14:32:00.000Z",
  "source_recorded_at": "2026-03-29T14:32:00.000Z",
  "value": 142,
  "unit": "mg/dL",
  "measurement_source": "cgm",
  "device": {
    "manufacturer": "Dexcom",
    "model": "G7",
    "type": "cgm"
  },
  "provenance": {
    "source_system": "com.apple.health",
    "raw_event_id": "A1B2C3D4-E5F6-7890-ABCD-EF1234567890",
    "adapter_version": "0.1.0",
    "ingested_at": "2026-03-29T14:33:15.000Z"
  },
  "trend": {
    "direction": "rising",
    "rate": 1.8,
    "rate_unit": "mg/dL/min"
  },
  "quality": {
    "status": "valid"
  }
}