@kingstinct/react-native-healthkit/src/utils/subscribeToChanges.ts

React Native bindings for HealthKit

import { Core } from '../modules'
import type { SampleTypeIdentifier } from '../types/Shared'
import type { OnChangeCallbackArgs } from '../types/Subscriptions'

export const subscribeToChanges = (
  identifier: SampleTypeIdentifier,
  callback: (args: OnChangeCallbackArgs) => void,
) => {
  const queryId = Core.subscribeToObserverQuery(identifier, callback)

  return {
    remove: () => Core.unsubscribeQuery(queryId),
  }
}