@kingstinct/react-native-healthkit/lib/module/hooks/useSubscribeToCategorySamples.js

React Native bindings for HealthKit

import { useEffect, useRef } from 'react';
import { subscribeToCategorySamples } from '../utils/subscribeToCategorySamples';
export function useSubscribeToCategorySamples(identifier, onChange) {
    const onChangeRef = useRef(onChange);
    useEffect(() => {
        onChangeRef.current = onChange;
    }, [onChange]);
    useEffect(() => {
        const subscription = subscribeToCategorySamples(identifier, (args) => {
            onChangeRef.current(args);
        });
        return () => {
            subscription.remove();
        };
    }, [identifier]);
}
export default useSubscribeToCategorySamples;