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Integration Documentation

This section covers all external integrations available in the LyfeAI Provider system, enabling seamless connectivity with healthcare systems and third-party services.

Overview​

LyfeAI Provider is designed to integrate with various healthcare systems, standards, and services to provide a comprehensive healthcare management platform. All integrations prioritize security, compliance, and data accuracy.

Integration Categories​

Healthcare Standards​

EHR Systems​

Patient Portals​

Laboratory Systems​

Pharmacy Systems​

Insurance & Billing​

Device Integration​

Communication​

Integration Architecture​

Service Layer​

All integrations follow a consistent service pattern:

interface IntegrationService {
  authenticate(): Promise<AuthToken>;
  testConnection(): Promise<boolean>;
  syncData(params: SyncParams): Promise<SyncResult>;
  handleWebhook(payload: any): Promise<void>;
  getStatus(): IntegrationStatus;
}

Security Model​

// All integrations use encrypted credentials
interface IntegrationCredentials {
  apiKey?: string;         // Encrypted
  clientId?: string;       // Encrypted
  clientSecret?: string;   // Encrypted
  endpoint?: string;
  environment: 'production' | 'sandbox';
}

Error Handling​

Standardized error handling across all integrations:

class IntegrationError extends Error {
  code: string;
  integration: string;
  retryable: boolean;
  details?: any;
}

Quick Start​

1. Enable an Integration​

// Via admin panel
await updateIntegrationStatus('epic-mychart', true);

// Or via API
const integration = await integrationsService.enable('epic-mychart', {
  clientId: process.env.EPIC_CLIENT_ID,
  clientSecret: process.env.EPIC_CLIENT_SECRET
});

2. Test Connection​

const status = await integration.testConnection();
if (status.connected) {
  console.log('Integration ready');
} else {
  console.error('Connection failed:', status.error);
}

3. Sync Data​

const syncResult = await integration.syncPatientData({
  patientId: 'internal-123',
  externalId: 'epic-456',
  syncType: 'full'
});

console.log(`Synced ${syncResult.recordCount} records`);

Common Integration Patterns​

Webhook Handler​

// app/api/webhooks/[integration]/route.ts
export async function POST(
  request: Request,
  { params }: { params: { integration: string } }
) {
  const payload = await request.json();
  const signature = request.headers.get('x-signature');
  
  // Verify webhook signature
  if (!verifyWebhookSignature(payload, signature)) {
    return new Response('Invalid signature', { status: 401 });
  }
  
  // Process webhook
  await processWebhook(params.integration, payload);
  
  return new Response('OK', { status: 200 });
}

Polling Pattern​

// For systems without webhooks
const pollIntegration = async (integration: string) => {
  const lastSync = await getLastSyncTime(integration);
  const updates = await fetchUpdates(integration, lastSync);
  
  if (updates.length > 0) {
    await processUpdates(integration, updates);
    await updateLastSyncTime(integration);
  }
};

// Schedule polling
cron.schedule('*/15 * * * *', () => pollIntegration('labcorp'));

Batch Processing​

// Handle large data imports
const batchImport = async (integration: string, data: any[]) => {
  const BATCH_SIZE = 100;
  const batches = chunk(data, BATCH_SIZE);
  
  for (const [index, batch] of batches.entries()) {
    console.log(`Processing batch ${index + 1} of ${batches.length}`);
    await processBatch(integration, batch);
    await delay(1000); // Rate limiting
  }
};

Authentication Methods​

OAuth 2.0​

// Used by Epic, Cerner, etc.
const oauth = new OAuth2Client({
  clientId: process.env.CLIENT_ID,
  clientSecret: process.env.CLIENT_SECRET,
  redirectUri: `${process.env.BASE_URL}/auth/callback`,
  authorizationUrl: 'https://epic.com/oauth/authorize',
  tokenUrl: 'https://epic.com/oauth/token'
});

API Key​

// Used by labs, pharmacies
const headers = {
  'Authorization': `Bearer ${process.env.API_KEY}`,
  'X-Client-ID': process.env.CLIENT_ID
};

Certificate-Based​

// Used by some hospital systems
const agent = new https.Agent({
  cert: fs.readFileSync('client.crt'),
  key: fs.readFileSync('client.key'),
  ca: fs.readFileSync('ca.crt')
});

Data Mapping​

Standardized Mapping​

All integrations map to internal models:

// External system data → Internal model
const mapPatient = (external: any): Patient => {
  return {
    firstName: external.name?.first || external.given_name,
    lastName: external.name?.last || external.family_name,
    dateOfBirth: parseDate(external.dob || external.birth_date),
    // ... field mapping
  };
};

Code System Translation​

// Translate between code systems
const translateCode = (code: string, fromSystem: string, toSystem: string) => {
  return codeTranslationService.translate({
    code,
    sourceSystem: fromSystem,
    targetSystem: toSystem
  });
};

Monitoring & Alerts​

Integration Health​

interface IntegrationHealth {
  name: string;
  status: 'healthy' | 'degraded' | 'down';
  lastSync: Date;
  errorRate: number;
  avgResponseTime: number;
  uptime: number;
}

// Monitor all integrations
const monitorIntegrations = async () => {
  const integrations = await getActiveIntegrations();
  const health = await Promise.all(
    integrations.map(i => checkIntegrationHealth(i))
  );
  
  // Alert on issues
  health.filter(h => h.status !== 'healthy')
    .forEach(h => alertOps(`Integration ${h.name} is ${h.status}`));
};

Best Practices​

1. Retry Logic​

const retryableRequest = async (fn: Function, maxRetries = 3) => {
  for (let i = 0; i < maxRetries; i++) {
    try {
      return await fn();
    } catch (error) {
      if (i === maxRetries - 1 || !isRetryable(error)) {
        throw error;
      }
      await delay(Math.pow(2, i) * 1000); // Exponential backoff
    }
  }
};

2. Rate Limiting​

const rateLimiter = new RateLimiter({
  maxRequests: 100,
  perMilliseconds: 60000
});

const makeRequest = async (url: string) => {
  await rateLimiter.throttle();
  return fetch(url);
};

3. Data Validation​

// Validate all external data
const validateExternalData = (data: any, schema: z.ZodSchema) => {
  try {
    return schema.parse(data);
  } catch (error) {
    logValidationError(error, data);
    throw new IntegrationError('Invalid data format');
  }
};

Troubleshooting​

Common Issues​

  1. Authentication Failures

    • Check credentials and expiration
    • Verify IP whitelisting
    • Review OAuth scopes

  2. Data Sync Issues

    • Check field mappings
    • Verify data formats
    • Review error logs

  3. Performance Problems

    • Implement caching
    • Use batch operations
    • Optimize queries

Debug Mode​

Enable detailed logging for troubleshooting:

// Enable debug mode for specific integration
await setIntegrationConfig('epic-mychart', {
  debug: true,
  logLevel: 'verbose',
  captureRequests: true
});

Compliance​

HIPAA Requirements​

  • All data encrypted in transit and at rest
  • Audit logs for all integration activities
  • BAA agreements with all vendors
  • Regular security assessments

Data Governance​

  • Patient consent tracking
  • Data retention policies
  • Right to deletion support
  • Data portability compliance

Future Integrations​

Planned​

  • Pharmacy Benefit Managers (PBMs)
  • Dental systems
  • Vision care systems
  • Mental health platforms
  • Public health registries

In Development​

  • Genomic data platforms
  • Clinical trial systems
  • Population health analytics
  • Social determinants platforms