Measurements

ovok.measurements turns device readings into FHIR Observations and saves them so a reading is never lost or duplicated.

final result = await ovok.measurements.save(
  BuildObservationsParams(
    patientId: patientId,
    measurement: {
      'measurementTypeKey': 'body-weight',
      'bodyWeight': 72.4,
    },
  ),
);

if (result.status == 'queued') {
  await ovok.measurements.offlineQueue.flush();
}

• Build without saving: build(...) returns the Observations a measurement maps to, using the same codes as the other Ovok SDKs.
• Conditional writes: saves are conditional on the reading's identifier, so saving the same reading twice stores it once. Large readings are split across requests.
• Grouped readings: saveObservationGroups(...) keeps each reading together, sends main observations before linked members, and returns one combined bundle.
• Offline: a save that fails for a retryable reason is queued in the secure store and reported as queued. Call offlineQueue.flush() when the device is back online.
• Reading back: latest, lastForPatient and codesFor read recent values and the codes a measurement type uses.