App.tsx

import React, {useState} from 'react';
import {
  SafeAreaView,
  StyleSheet,
  ScrollView,
  View,
  Text,
  StatusBar,
  ShadowPropTypesIOS,
} from 'react-native';

import {Colors} from 'react-native/Libraries/NewAppScreen';
import AppleHealthKit, {
  HealthValue,
  HealthKitPermissions,
  HealthInputOptions,
} from 'react-native-health';
import firestore from '@react-native-firebase/firestore';

/* Permission options */
const permissions = {
  permissions: {
    read: [
      //Characteristics
      AppleHealthKit.Constants.Permissions.HeartRate,
      AppleHealthKit.Constants.Permissions.Steps,
      AppleHealthKit.Constants.Permissions.Height,
      AppleHealthKit.Constants.Permissions.Weight,
      AppleHealthKit.Constants.Permissions.BiologicalSex,
      AppleHealthKit.Constants.Permissions.BloodType,
      AppleHealthKit.Constants.Permissions.WaistCircumference,

      //Body
      AppleHealthKit.Constants.Permissions.BodyMass,
      AppleHealthKit.Constants.Permissions.BodyFatPercentage,
      AppleHealthKit.Constants.Permissions.BodyMassIndex,
      AppleHealthKit.Constants.Permissions.LeanBodyMass,

      //Hearing
      AppleHealthKit.Constants.Permissions.EnvironmentalAudioExposure,
      AppleHealthKit.Constants.Permissions.HeadphoneAudioExposure,

      //Fitness
      AppleHealthKit.Constants.Permissions.Steps,
      AppleHealthKit.Constants.Permissions.DistanceWalkingRunning,
      AppleHealthKit.Constants.Permissions.DistanceCycling,
      AppleHealthKit.Constants.Permissions.DistanceSwimming,
      AppleHealthKit.Constants.Permissions.BasalEnergyBurned,
      AppleHealthKit.Constants.Permissions.ActiveEnergyBurned,
      AppleHealthKit.Constants.Permissions.FlightsClimbed,
      AppleHealthKit.Constants.Permissions.NikeFuel,
      AppleHealthKit.Constants.Permissions.AppleStandTime,
      AppleHealthKit.Constants.Permissions.AppleExerciseTime,

      //Vitals
      AppleHealthKit.Constants.Permissions.HeartRate,
      AppleHealthKit.Constants.Permissions.WalkingHeartRateAverage,
      AppleHealthKit.Constants.Permissions.RestingHeartRate,
      AppleHealthKit.Constants.Permissions.HeartRateVariability,
      AppleHealthKit.Constants.Permissions.HeartbeatSeries,
      AppleHealthKit.Constants.Permissions.Vo2Max,
      AppleHealthKit.Constants.Permissions.BodyTemperature,
      AppleHealthKit.Constants.Permissions.BloodPressureDiastolic,
      AppleHealthKit.Constants.Permissions.BloodPressureSystolic,
      AppleHealthKit.Constants.Permissions.RespiratoryRate,
      AppleHealthKit.Constants.Permissions.OxygenSaturation,
      AppleHealthKit.Constants.Permissions.Electrocardiogram,

      //sleep
      AppleHealthKit.Constants.Permissions.SleepAnalysis,

      //workouts
      AppleHealthKit.Constants.Permissions.MindfulSession,
      AppleHealthKit.Constants.Permissions.Workout,

      //Lab and test results
      AppleHealthKit.Constants.Permissions.BloodAlcoholContent,

      //New Invoke stuff
    ],
    write: [AppleHealthKit.Constants.Permissions.Steps],
  },
} as HealthKitPermissions;

AppleHealthKit.initHealthKit(permissions, (error: string) => {
  /* Called after we receive a response from the system */

  if (error) {
    console.log('[ERROR] Cannot grant permissions!');
  }

  /* Can now read or write to HealthKit */

  let options = {
    startDate: new Date(2020, 1, 1).toISOString(),
  };

  AppleHealthKit.getHeartRateSamples(
    options,
    (callbackError: string, results: HealthValue[]) => {
      /* Samples are now collected from HealthKit */
    },
  );
});

export default function App() {
  const [authStatus, setAuthStatus] = useState<any>({});
  const [steps, getSteps] = useState({});

  const handlePressGetAuthStatus = () => {
    AppleHealthKit.getAuthStatus(permissions, (err, result) => {
      if (err) {
        console.error(err);
      }
      setAuthStatus(result);
    });
  };

  let options = {
    date: new Date().toISOString(), // optional; default now
    includeManuallyAdded: false, // optional: default true
  };

  const handleGetData = () => {
    AppleHealthKit.getStepCount(
      options,
      (err: Object, results: HealthValue) => {
        if (err) {
          return;
        }
        getSteps(results);
        console.log(results);
      },
    );
  };

  const sendToFirebase = () => {
    firestore().collection('Playground').add({value: steps.value});
  };

  return (
    <>
      <StatusBar barStyle="dark-content" />
      <SafeAreaView>
        <ScrollView
          contentInsetAdjustmentBehavior="automatic"
          style={styles.scrollView}>
          <View style={styles.body}>
            <View style={styles.sectionContainer}>
              <Text style={styles.sectionTitle}>
                Invoke Data Tracking Thingy
              </Text>
              <Text onPress={handleGetData}>Press me to get step count</Text>
              <Text style={styles.sectionDescription}>
                {JSON.stringify(authStatus, null, 2)}
              </Text>
              <Text style={styles.sectionDescription}>
                {JSON.stringify(steps, null, 2)}
              </Text>
              <Text onPress={sendToFirebase}>
                Press me to send this data to Firebase (hopefully hehe)
              </Text>
            </View>
          </View>
        </ScrollView>
      </SafeAreaView>
    </>
  );
}

const styles = StyleSheet.create({
  scrollView: {
    backgroundColor: Colors.lighter,
  },
  engine: {
    position: 'absolute',
    right: 0,
  },
  body: {
    backgroundColor: Colors.white,
  },
  sectionContainer: {
    marginTop: 32,
    paddingHorizontal: 24,
  },
  sectionTitle: {
    fontSize: 24,
    fontWeight: '600',
    color: Colors.black,
  },
  sectionDescription: {
    marginTop: 8,
    fontSize: 18,
    fontWeight: '400',
    color: Colors.dark,
  },
  highlight: {
    fontWeight: '700',
  },
  footer: {
    color: Colors.dark,
    fontSize: 12,
    fontWeight: '600',
    padding: 4,
    paddingRight: 12,
    textAlign: 'right',
  },
});