react-native-fitness

react-native-fitness is a library that works on both iOS and Android with it you can interact with Apple Healthkit and Google Fit. Currently the lib provides a set of API that you can use to read steps count or distance count for a given period of time.

Note: We're open to receive PRs that contains new features or improvements, so feel free to contribute to this repo.

Getting started

npm install @ovalmoney/react-native-fitness --save

or

yarn add @ovalmoney/react-native-fitness

Mostly automatic installation

react-native link @ovalmoney/react-native-fitness

Manual installation

iOS

Pods

1. Add the line below to your Podfile.

   pod 'react-native-fitness', :path => '../node_modules/@ovalmoney/react-native-fitness'`
   

2. Run pod install in your iOS project directory.
3. In XCode, select your project, go to Build Phases ➜ Link Binary With Libraries and add libreact-native-fitness.a.
4. Add following to your Info.plist in order to ask permissions.

   <key>NSHealthShareUsageDescription</key>
   <string>Read and understand health data.</string>

Manually

1. In XCode's project navigator, right click Libraries ➜ Add Files to [your project's name]
2. Go to node_modules ➜ @ovalmoney ➜ react-native-fitness and select RNFitness.xcodeproj
3. In XCode select your project, go to Build Phases ➜ Link Binary With Libraries and add libRNFitness.a.
4. Run your project (Cmd+R)

In order to make it run, it is necessary to turn on Health Kit in the Capabilities.

Android

1. Get an OAuth 2.0 Client ID as explained at https://developers.google.com/fit/android/get-api-key
2. Open up MainApplication.java
   • Add import com.ovalmoney.fitness.RNFitnessPackage; to the imports at the top of the file
   • Add new RNFitnessPackage() to the list returned by the getPackages() method
3. Append the following lines to android/settings.gradle:

   include ':@ovalmoney_react-native-fitness'
   project(':@ovalmoney_react-native-fitness').projectDir = new File(rootProject.projectDir, 	'../node_modules/@ovalmoney/react-native-fitness/android')

4. Insert the following lines inside the dependencies block in android/app/build.gradle:

   compile project(':@ovalmoney_react-native-fitness')

5. (Optional) In order to better handle the right versions, add in your android/build.gradle:

     // Other build versions
     fitnessPlayServices: "<Your version>" // default: 17.0.0
     authPlayServices: "<Your version>" // default: 17.0.0
   }
   

Usage

import Fitness from '@ovalmoney/react-native-fitness';

const permissions = [
  { kind: Fitness.PermissionKinds.Steps, access: Fitness.PermissionAccesses.Write },
];

Fitness.isAuthorized(permissions)
  .then((authorized) => {
    // Do something
  })
  .catch((error) => {
    // Do something
  });

API

• Fitness.isAuthorized([{ kind: int, access: int }]) Check if permissions are granted or not. It works on Android and iOS >= 12.0, while it returns an error when iOS < 12. It requires an Array of Object with a mandatory key kind and an optional key access. Possible values for the keys can be found in PermissionKinds and PermissionAccesses under Attributes section. On iOS at least one permissions with Read access must be provided, otherwise an errorEmptyPermissions will be thrown.

• Fitness.requestPermissions([{ kind: int, access: int }]) Ask permission and return if user granted or not(Android), while, due to Apple's privacy model, always true is returned in iOS. It requires an Array of Object with a mandatory key kind and an optional key access. Possible values for the keys can be found in PermissionKinds and PermissionAccesses under Attributes section. On iOS at least one permissions with Read access must be provided, otherwise an errorEmptyPermissions will be thrown.

• Fitness.logout() Available only on android. It performs a logout from google account. It returns true for a successful logout, false if user cancel action.

• Fitness.disconnect() Available only on android. It performs a disconnect action from Google Fit. It returns true for a successful logout, false if user cancel action.

• Fitness.getSteps({ startDate: string, endDate: string, interval: string }) Fetch steps on a given period of time. It requires an Object with startDate and endDate attributes as string. If startDate is not provided an error will be thrown. Set interval to decide how detailed the returned data is, set it to hour or minute otherwise it defaults to days.

• Fitness.getDistances({ startDate: string, endDate: string, interval: string }) Fetch distance in meters on a given period of time. It requires an Object with startDate and endDate attributes as string. If startDate is not provided an error will be thrown. Set interval to decide how detailed the returned data is, set it to hour or minute otherwise it defaults to days.

• Fitness.getCalories({ startDate: string, endDate: string, interval: string }) Fetch calories burnt in kilocalories on a given period of time. It requires an Object with startDate and endDate attributes as string. If startDate is not provided an error will be thrown. Set interval to decide how detailed the returned data is, set it to hour or minute otherwise it defaults to days.

• Fitness.getHeartRate({ startDate: string, endDate: string, interval: string }) Fetch heart rate bpm on a given period of time. It requires an Object with startDate and endDate attributes as string. If startDate is not provided an error will be thrown. Set interval to decide how detailed the returned data is, set it to hour or minute otherwise it defaults to days.

• Fitness.getSleepAnalysis({ startDate: string, endDate: string }) Fetch sleep analysis data on a given period of time. It requires an Object with startDate and endDate attributes as string. If startDate is not provided an error will be thrown.

• Fitness.subscribeToSteps() Available only on android. Subscribe only to steps from the Google Fit store. It returns a promise with true for a successful subscription and false otherwise. Call this function to get steps and eliminate the need to have Google Fit installed on the device.

Attributes

Platform

Return the used provider.

PermissionKinds

Return the information of what kind of Permission can be asked. At the moment the list of possible kinds is:

• Steps: to required the access for Steps
• Distances: to required the access for Distances
• Calories: to required the access for Calories
• HeartRate: to required the access for Heart rate
• Activity: to required the access for Activity (only Android)
• SleepAnalysis: to required the access for Sleep Analysis

PermissionAccesses

Return the information of what kind of Access can be asked. The list of possible kinds is:

• Read: to required the access to Read
• Write: to required the access to Write

Errors

Return the list of meaningful errors that can be possible thrown.

iOS

Possible values are:

• hkNotAvailable: thrown if HealthKit is not available
• methodNotAvailable: thrown if isAuthorized is called on iOS < 12.0
• dateNotCorrect: thrown if received date is not correct
• errorEmptyPermissions: thrown if no read permissions are provided
• errorNoEvents: thrown if an error occurs while try to retrieve data

Android

Possible values are:

• methodNotAvailable: thrown if getSleepAnalysis is called on Android less than N