Bolt.new AI and HealthKit integration: Step-by-Step Guide 2025

 

Step 1: Adding HealthKit Dependency

 

Since Bolt.new AI doesn't have a terminal, you need to simulate dependency installation by adding the dependency directly in your project’s configuration. In your project file where dependencies are listed (for example, a pseudo package.json file), add the following snippet to include the HealthKit package:

{
  "dependencies": {
    "react-native-health": "^0.15.0"
  }
}

This tells the project to include the HealthKit integration library. The version number can be adjusted based on compatibility.

 

Step 2: Creating a New File for HealthKit Integration

 

Create a new TypeScript file named healthkit.ts in your project’s source directory. This file will contain the code to integrate with Apple HealthKit through the react-native-health package.

// healthkit.ts

import { useEffect, useState } from 'react';
import { Platform } from 'react-native';
import AppleHealthKit, { HealthKitPermissions, HealthValue } from 'react-native-health';

// Define the permissions you need from HealthKit
const permissions: HealthKitPermissions = {
  permissions: {
    read: [
      AppleHealthKit.Constants.Permissions.HeartRate,
      AppleHealthKit.Constants.Permissions.StepCount,
      // Add more permissions as required
    ],
    write: []
  }
};

// Function to initialize HealthKit
export const initHealthKit = (): Promise => {
  return new Promise((resolve, reject) => {
    if (Platform.OS !== 'ios') {
      // HealthKit is only available on iOS devices
      resolve(false);
      return;
    }
    AppleHealthKit.initHealthKit(permissions, (err: string, results: any) => {
      if (err) {
        console.log("Error initializing HealthKit: ", err);
        reject(err);
      } else {
        console.log("HealthKit initialized successfully.", results);
        resolve(true);
      }
    });
  });
};

// Example hook to fetch HealthKit data
export const useHealthData = () => {
  const [heartRate, setHeartRate] = useState(null);
  const [steps, setSteps] = useState(null);

  useEffect(() => {
    initHealthKit().then(initialized => {
      if (initialized) {
        // Example: Fetch heart rate data
        AppleHealthKit.getHeartRateSamples(
          { startDate: (new Date(2023, 0, 1)).toISOString() },
          (err: string, results: HealthValue[]) => {
            if (err) {
              console.log("Error fetching heart rate: ", err);
              return;
            }
            if (results.length > 0) {
              setHeartRate(results[0]);
            }
          }
        );
        // Example: Fetch step count data
        AppleHealthKit.getStepCount(
          { startDate: (new Date(2023, 0, 1)).toISOString() },
          (err: string, results: HealthValue) => {
            if (err) {
              console.log("Error fetching step count: ", err);
              return;
            }
            setSteps(results);
          }
        );
      }
    }).catch(error => console.error("HealthKit initialization failed:", error));
  }, []);
  
  return { heartRate, steps };
};

This file defines the HealthKit initialization process and provides a React hook (useHealthData) for fetching data such as heart rate and step count from HealthKit.

 

Step 3: Modifying Your Main Application File

 

Now, open your main TypeScript file (for example, app.tsx or another entry file in your Bolt.new project) and import the HealthKit functionality that you defined in healthkit.ts. Add these imports at the top of your main file:

import React from 'react';
import { View, Text } from 'react-native';
import { useHealthData, initHealthKit } from './healthkit';

Inside your component, use the hook to access HealthKit data:

const App = () => {
  const { heartRate, steps } = useHealthData();

  return (
    
      HealthKit Data Integration
      Heart Rate: {heartRate ? heartRate.value : 'Loading...'}
      Steps: {steps ? steps.value : 'Loading...'}
    
  );
};

export default App;

This code displays data fetched from HealthKit within your UI components. Ensure that your project is correctly configured to run React Native code if it targets an iOS environment.

 

Step 4: Placing the Files and Finalizing Integration

 

• Place healthkit.ts in your project’s source directory (for example, a folder named src).
• Ensure your main application file (such as app.tsx) imports from ./healthkit as shown.
• Confirm that your project configuration recognizes these files and that the dependency for react-native-health is referenced in your dependency list.
• Since Bolt.new AI doesn’t provide a terminal, any automatic dependency installation should be handled by the platform based on the configuration files.

Following these steps, you integrate HealthKit support into your Bolt.new AI project using TypeScript. This guide details where to add code snippets and how to structure your files for a smooth integration.