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Enterprise Callback Examples

Author: Matthew Raymer
Version: 2.0.0
Created: 2025-09-22 09:22:32 UTC
Last Updated: 2025-09-22 09:22:32 UTC

Overview

This document provides comprehensive examples of enterprise-grade callback implementations for the Daily Notification Plugin, covering analytics, CRM integration, database operations, and monitoring systems.

Analytics Integration
CRM Integration
Database Operations
Monitoring & Alerting
Multi-Service Orchestration
Error Handling Patterns
Performance Optimization
Security Best Practices

Analytics Integration

Google Analytics 4

import { DailyNotification, CallbackEvent } from '@timesafari/daily-notification-plugin';

class GoogleAnalyticsCallback {
  private measurementId: string;
  private apiSecret: string;

  constructor(measurementId: string, apiSecret: string) {
    this.measurementId = measurementId;
    this.apiSecret = apiSecret;
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('ga4-analytics', {
      kind: 'http',
      target: `https://www.google-analytics.com/mp/collect?measurement_id=${this.measurementId}&api_secret=${this.apiSecret}`,
      headers: {
        'Content-Type': 'application/json'
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const payload = {
      client_id: this.generateClientId(),
      events: [{
        name: this.mapEventName(event.type),
        params: {
          event_category: 'daily_notification',
          event_label: event.payload?.source || 'unknown',
          value: this.calculateEventValue(event),
          custom_parameter_1: event.id,
          custom_parameter_2: event.at
        }
      }]
    };

    await this.sendToGA4(payload);
  }

  private mapEventName(eventType: string): string {
    const eventMap: Record<string, string> = {
      'onFetchSuccess': 'content_fetch_success',
      'onFetchFailure': 'content_fetch_failure',
      'onNotifyDelivered': 'notification_delivered',
      'onNotifyClicked': 'notification_clicked',
      'onNotifyDismissed': 'notification_dismissed'
    };
    return eventMap[eventType] || 'unknown_event';
  }

  private calculateEventValue(event: CallbackEvent): number {
    // Calculate engagement value based on event type
    const valueMap: Record<string, number> = {
      'onFetchSuccess': 1,
      'onNotifyDelivered': 2,
      'onNotifyClicked': 5,
      'onNotifyDismissed': 0
    };
    return valueMap[event.type] || 0;
  }

  private generateClientId(): string {
    // Generate or retrieve client ID for GA4
    return `client_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
  }

  private async sendToGA4(payload: any): Promise<void> {
    // Implementation would send to GA4 Measurement Protocol
    console.log('Sending to GA4:', payload);
  }
}

// Usage
const ga4Callback = new GoogleAnalyticsCallback('G-XXXXXXXXXX', 'your-api-secret');
await ga4Callback.register();

Mixpanel Integration

class MixpanelCallback {
  private projectToken: string;
  private baseUrl: string;

  constructor(projectToken: string) {
    this.projectToken = projectToken;
    this.baseUrl = 'https://api.mixpanel.com';
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('mixpanel-analytics', {
      kind: 'http',
      target: `${this.baseUrl}/track`,
      headers: {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${this.projectToken}`
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const eventData = {
      event: this.mapEventName(event.type),
      properties: {
        distinct_id: this.getDistinctId(),
        time: Math.floor(event.at / 1000), // Unix timestamp
        $app_version: '2.0.0',
        $os: this.getPlatform(),
        notification_id: event.id,
        content_source: event.payload?.source,
        ttl_seconds: event.payload?.ttlSeconds,
        fetch_duration: event.payload?.duration,
        success: event.type.includes('Success')
      }
    };

    await this.sendToMixpanel(eventData);
  }

  private mapEventName(eventType: string): string {
    return eventType.replace('on', '').toLowerCase();
  }

  private getDistinctId(): string {
    // Generate or retrieve user ID
    return `user_${Date.now()}`;
  }

  private getPlatform(): string {
    // Detect platform (Android, iOS, Web)
    return 'web'; // Simplified for example
  }

  private async sendToMixpanel(data: any): Promise<void> {
    // Implementation would send to Mixpanel API
    console.log('Sending to Mixpanel:', data);
  }
}

CRM Integration

Salesforce Integration

class SalesforceCallback {
  private accessToken: string;
  private instanceUrl: string;

  constructor(accessToken: string, instanceUrl: string) {
    this.accessToken = accessToken;
    this.instanceUrl = instanceUrl;
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('salesforce-crm', {
      kind: 'http',
      target: `${this.instanceUrl}/services/data/v58.0/sobjects/Notification_Event__c/`,
      headers: {
        'Authorization': `Bearer ${this.accessToken}`,
        'Content-Type': 'application/json'
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const salesforceRecord = {
      Name: `Notification_${event.id}`,
      Event_Type__c: event.type,
      Event_Timestamp__c: new Date(event.at).toISOString(),
      Notification_ID__c: event.id,
      Content_Source__c: event.payload?.source,
      Success__c: event.type.includes('Success'),
      Error_Message__c: event.payload?.error || null,
      User_Agent__c: this.getUserAgent(),
      Platform__c: this.getPlatform()
    };

    await this.createSalesforceRecord(salesforceRecord);
  }

  private getUserAgent(): string {
    return navigator.userAgent || 'Unknown';
  }

  private getPlatform(): string {
    // Detect platform
    return 'Web'; // Simplified for example
  }

  private async createSalesforceRecord(record: any): Promise<void> {
    // Implementation would create Salesforce record
    console.log('Creating Salesforce record:', record);
  }
}

HubSpot Integration

class HubSpotCallback {
  private apiKey: string;
  private baseUrl: string;

  constructor(apiKey: string) {
    this.apiKey = apiKey;
    this.baseUrl = 'https://api.hubapi.com';
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('hubspot-crm', {
      kind: 'http',
      target: `${this.baseUrl}/crm/v3/objects/notifications`,
      headers: {
        'Authorization': `Bearer ${this.apiKey}`,
        'Content-Type': 'application/json'
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const hubspotRecord = {
      properties: {
        notification_id: event.id,
        event_type: event.type,
        event_timestamp: event.at,
        content_source: event.payload?.source,
        success: event.type.includes('Success'),
        error_message: event.payload?.error || null,
        platform: this.getPlatform(),
        user_agent: this.getUserAgent()
      }
    };

    await this.createHubSpotRecord(hubspotRecord);
  }

  private getPlatform(): string {
    return 'Web';
  }

  private getUserAgent(): string {
    return navigator.userAgent || 'Unknown';
  }

  private async createHubSpotRecord(record: any): Promise<void> {
    // Implementation would create HubSpot record
    console.log('Creating HubSpot record:', record);
  }
}

Database Operations

PostgreSQL Integration

class PostgreSQLCallback {
  private connectionString: string;

  constructor(connectionString: string) {
    this.connectionString = connectionString;
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('postgres-db', {
      kind: 'http',
      target: 'https://your-api.example.com/notifications',
      headers: {
        'Content-Type': 'application/json',
        'Authorization': 'Bearer your-api-token'
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const dbRecord = {
      notification_id: event.id,
      event_type: event.type,
      event_timestamp: new Date(event.at),
      content_source: event.payload?.source,
      success: event.type.includes('Success'),
      error_message: event.payload?.error || null,
      platform: this.getPlatform(),
      user_agent: this.getUserAgent(),
      ttl_seconds: event.payload?.ttlSeconds,
      fetch_duration: event.payload?.duration
    };

    await this.insertRecord(dbRecord);
  }

  private async insertRecord(record: any): Promise<void> {
    // Implementation would insert into PostgreSQL
    console.log('Inserting PostgreSQL record:', record);
  }

  private getPlatform(): string {
    return 'Web';
  }

  private getUserAgent(): string {
    return navigator.userAgent || 'Unknown';
  }
}

MongoDB Integration

class MongoDBCallback {
  private connectionString: string;

  constructor(connectionString: string) {
    this.connectionString = connectionString;
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('mongodb-analytics', {
      kind: 'http',
      target: 'https://your-api.example.com/mongodb/notifications',
      headers: {
        'Content-Type': 'application/json',
        'Authorization': 'Bearer your-api-token'
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const mongoDocument = {
      _id: event.id,
      eventType: event.type,
      timestamp: new Date(event.at),
      payload: {
        source: event.payload?.source,
        success: event.type.includes('Success'),
        error: event.payload?.error || null,
        platform: this.getPlatform(),
        userAgent: this.getUserAgent(),
        ttlSeconds: event.payload?.ttlSeconds,
        duration: event.payload?.duration
      },
      metadata: {
        createdAt: new Date(),
        version: '2.0.0'
      }
    };

    await this.insertDocument(mongoDocument);
  }

  private async insertDocument(doc: any): Promise<void> {
    // Implementation would insert into MongoDB
    console.log('Inserting MongoDB document:', doc);
  }

  private getPlatform(): string {
    return 'Web';
  }

  private getUserAgent(): string {
    return navigator.userAgent || 'Unknown';
  }
}

Monitoring & Alerting

Datadog Integration

class DatadogCallback {
  private apiKey: string;
  private appKey: string;

  constructor(apiKey: string, appKey: string) {
    this.apiKey = apiKey;
    this.appKey = appKey;
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('datadog-monitoring', {
      kind: 'http',
      target: 'https://api.datadoghq.com/api/v1/events',
      headers: {
        'Content-Type': 'application/json',
        'DD-API-KEY': this.apiKey,
        'DD-APPLICATION-KEY': this.appKey
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const datadogEvent = {
      title: `Daily Notification ${event.type}`,
      text: this.formatEventText(event),
      priority: this.getPriority(event.type),
      alert_type: this.getAlertType(event.type),
      tags: [
        `platform:${this.getPlatform()}`,
        `event_type:${event.type}`,
        `source:${event.payload?.source || 'unknown'}`,
        `success:${event.type.includes('Success')}`
      ],
      source_type_name: 'daily_notification_plugin'
    };

    await this.sendToDatadog(datadogEvent);
  }

  private formatEventText(event: CallbackEvent): string {
    return `Notification ${event.id} - ${event.type} at ${new Date(event.at).toISOString()}`;
  }

  private getPriority(eventType: string): string {
    if (eventType.includes('Failure')) return 'high';
    if (eventType.includes('Success')) return 'normal';
    return 'low';
  }

  private getAlertType(eventType: string): string {
    if (eventType.includes('Failure')) return 'error';
    if (eventType.includes('Success')) return 'success';
    return 'info';
  }

  private getPlatform(): string {
    return 'Web';
  }

  private async sendToDatadog(event: any): Promise<void> {
    // Implementation would send to Datadog
    console.log('Sending to Datadog:', event);
  }
}

New Relic Integration

class NewRelicCallback {
  private licenseKey: string;

  constructor(licenseKey: string) {
    this.licenseKey = licenseKey;
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('newrelic-monitoring', {
      kind: 'http',
      target: 'https://metric-api.newrelic.com/metric/v1',
      headers: {
        'Content-Type': 'application/json',
        'Api-Key': this.licenseKey
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const newRelicMetric = {
      metrics: [{
        name: `daily_notification.${event.type}`,
        type: 'count',
        value: 1,
        timestamp: Math.floor(event.at / 1000),
        attributes: {
          notification_id: event.id,
          platform: this.getPlatform(),
          source: event.payload?.source || 'unknown',
          success: event.type.includes('Success'),
          error: event.payload?.error || null
        }
      }]
    };

    await this.sendToNewRelic(newRelicMetric);
  }

  private getPlatform(): string {
    return 'Web';
  }

  private async sendToNewRelic(metric: any): Promise<void> {
    // Implementation would send to New Relic
    console.log('Sending to New Relic:', metric);
  }
}

Multi-Service Orchestration

Event Bus Integration

class EventBusCallback {
  private eventBusUrl: string;
  private apiKey: string;

  constructor(eventBusUrl: string, apiKey: string) {
    this.eventBusUrl = eventBusUrl;
    this.apiKey = apiKey;
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('event-bus', {
      kind: 'http',
      target: `${this.eventBusUrl}/events`,
      headers: {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${this.apiKey}`
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const eventBusMessage = {
      id: event.id,
      type: `daily_notification.${event.type}`,
      timestamp: event.at,
      source: 'daily_notification_plugin',
      version: '2.0.0',
      data: {
        notification_id: event.id,
        event_type: event.type,
        payload: event.payload,
        platform: this.getPlatform(),
        user_agent: this.getUserAgent()
      },
      metadata: {
        correlation_id: this.generateCorrelationId(),
        trace_id: this.generateTraceId()
      }
    };

    await this.publishToEventBus(eventBusMessage);
  }

  private generateCorrelationId(): string {
    return `corr_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
  }

  private generateTraceId(): string {
    return `trace_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
  }

  private getPlatform(): string {
    return 'Web';
  }

  private getUserAgent(): string {
    return navigator.userAgent || 'Unknown';
  }

  private async publishToEventBus(message: any): Promise<void> {
    // Implementation would publish to event bus
    console.log('Publishing to event bus:', message);
  }
}

Apache Kafka Integration

class KafkaCallback {
  private kafkaUrl: string;
  private topic: string;

  constructor(kafkaUrl: string, topic: string) {
    this.kafkaUrl = kafkaUrl;
    this.topic = topic;
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('kafka-streams', {
      kind: 'http',
      target: `${this.kafkaUrl}/topics/${this.topic}`,
      headers: {
        'Content-Type': 'application/vnd.kafka.json.v2+json'
      }
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const kafkaMessage = {
      records: [{
        key: event.id,
        value: {
          notification_id: event.id,
          event_type: event.type,
          timestamp: event.at,
          payload: event.payload,
          platform: this.getPlatform(),
          user_agent: this.getUserAgent(),
          metadata: {
            version: '2.0.0',
            source: 'daily_notification_plugin'
          }
        }
      }]
    };

    await this.sendToKafka(kafkaMessage);
  }

  private getPlatform(): string {
    return 'Web';
  }

  private getUserAgent(): string {
    return navigator.userAgent || 'Unknown';
  }

  private async sendToKafka(message: any): Promise<void> {
    // Implementation would send to Kafka
    console.log('Sending to Kafka:', message);
  }
}

Error Handling Patterns

Circuit Breaker Implementation

class CircuitBreakerCallback {
  private failureThreshold: number = 5;
  private timeout: number = 60000; // 1 minute
  private state: 'CLOSED' | 'OPEN' | 'HALF_OPEN' = 'CLOSED';
  private failureCount: number = 0;
  private lastFailureTime: number = 0;

  async register(): Promise<void> {
    await DailyNotification.registerCallback('circuit-breaker', {
      kind: 'local',
      target: 'circuitBreakerHandler'
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    if (this.state === 'OPEN') {
      if (Date.now() - this.lastFailureTime > this.timeout) {
        this.state = 'HALF_OPEN';
        console.log('Circuit breaker transitioning to HALF_OPEN');
      } else {
        console.log('Circuit breaker is OPEN, skipping callback');
        return;
      }
    }

    try {
      await this.executeCallback(event);
      this.onSuccess();
    } catch (error) {
      this.onFailure();
      throw error;
    }
  }

  private async executeCallback(event: CallbackEvent): Promise<void> {
    // Your callback logic here
    console.log('Executing callback:', event);
  }

  private onSuccess(): void {
    this.failureCount = 0;
    this.state = 'CLOSED';
  }

  private onFailure(): void {
    this.failureCount++;
    this.lastFailureTime = Date.now();

    if (this.failureCount >= this.failureThreshold) {
      this.state = 'OPEN';
      console.log(`Circuit breaker opened after ${this.failureCount} failures`);
    }
  }
}

Retry with Exponential Backoff

class RetryCallback {
  private maxRetries: number = 5;
  private baseDelay: number = 1000; // 1 second
  private maxDelay: number = 60000; // 1 minute

  async register(): Promise<void> {
    await DailyNotification.registerCallback('retry-handler', {
      kind: 'local',
      target: 'retryHandler'
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    let attempt = 0;
    let delay = this.baseDelay;

    while (attempt < this.maxRetries) {
      try {
        await this.executeCallback(event);
        console.log(`Callback succeeded on attempt ${attempt + 1}`);
        return;
      } catch (error) {
        attempt++;
        console.log(`Callback failed on attempt ${attempt}:`, error);

        if (attempt >= this.maxRetries) {
          console.log('Max retries exceeded, giving up');
          throw error;
        }

        // Wait before retry
        await this.sleep(delay);
        delay = Math.min(delay * 2, this.maxDelay);
      }
    }
  }

  private async executeCallback(event: CallbackEvent): Promise<void> {
    // Your callback logic here
    console.log('Executing callback:', event);
  }

  private sleep(ms: number): Promise<void> {
    return new Promise(resolve => setTimeout(resolve, ms));
  }
}

Performance Optimization

Batch Processing

class BatchCallback {
  private batchSize: number = 10;
  private batchTimeout: number = 5000; // 5 seconds
  private batch: CallbackEvent[] = [];
  private batchTimer: NodeJS.Timeout | null = null;

  async register(): Promise<void> {
    await DailyNotification.registerCallback('batch-processor', {
      kind: 'local',
      target: 'batchHandler'
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    this.batch.push(event);

    if (this.batch.length >= this.batchSize) {
      await this.processBatch();
    } else if (!this.batchTimer) {
      this.batchTimer = setTimeout(() => {
        this.processBatch();
      }, this.batchTimeout);
    }
  }

  private async processBatch(): Promise<void> {
    if (this.batch.length === 0) return;

    const currentBatch = [...this.batch];
    this.batch = [];

    if (this.batchTimer) {
      clearTimeout(this.batchTimer);
      this.batchTimer = null;
    }

    try {
      await this.sendBatch(currentBatch);
      console.log(`Processed batch of ${currentBatch.length} events`);
    } catch (error) {
      console.error('Batch processing failed:', error);
      // Re-queue failed events
      this.batch.unshift(...currentBatch);
    }
  }

  private async sendBatch(events: CallbackEvent[]): Promise<void> {
    // Implementation would send batch to external service
    console.log('Sending batch:', events);
  }
}

Rate Limiting

class RateLimitedCallback {
  private requestsPerMinute: number = 60;
  private requests: number[] = [];

  async register(): Promise<void> {
    await DailyNotification.registerCallback('rate-limited', {
      kind: 'local',
      target: 'rateLimitedHandler'
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    if (!this.isRateLimited()) {
      await this.executeCallback(event);
      this.recordRequest();
    } else {
      console.log('Rate limit exceeded, skipping callback');
    }
  }

  private isRateLimited(): boolean {
    const now = Date.now();
    const oneMinuteAgo = now - 60000;

    // Remove old requests
    this.requests = this.requests.filter(time => time > oneMinuteAgo);

    return this.requests.length >= this.requestsPerMinute;
  }

  private recordRequest(): void {
    this.requests.push(Date.now());
  }

  private async executeCallback(event: CallbackEvent): Promise<void> {
    // Your callback logic here
    console.log('Executing rate-limited callback:', event);
  }
}

Security Best Practices

Authentication & Authorization

class SecureCallback {
  private apiKey: string;
  private secretKey: string;

  constructor(apiKey: string, secretKey: string) {
    this.apiKey = apiKey;
    this.secretKey = secretKey;
  }

  async register(): Promise<void> {
    const signature = this.generateSignature();
    
    await DailyNotification.registerCallback('secure-callback', {
      kind: 'http',
      target: 'https://your-api.example.com/secure-endpoint',
      headers: {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${this.apiKey}`,
        'X-Signature': signature,
        'X-Timestamp': Date.now().toString()
      }
    });
  }

  private generateSignature(): string {
    const timestamp = Date.now().toString();
    const message = `${this.apiKey}:${timestamp}`;
    
    // In a real implementation, you'd use HMAC-SHA256
    return btoa(message + this.secretKey);
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const securePayload = {
      notification_id: event.id,
      event_type: event.type,
      timestamp: event.at,
      payload: this.sanitizePayload(event.payload),
      platform: this.getPlatform(),
      user_agent: this.getUserAgent()
    };

    await this.sendSecureRequest(securePayload);
  }

  private sanitizePayload(payload: any): any {
    // Remove sensitive data
    const sanitized = { ...payload };
    delete sanitized.password;
    delete sanitized.token;
    delete sanitized.secret;
    return sanitized;
  }

  private getPlatform(): string {
    return 'Web';
  }

  private getUserAgent(): string {
    return navigator.userAgent || 'Unknown';
  }

  private async sendSecureRequest(payload: any): Promise<void> {
    // Implementation would send secure request
    console.log('Sending secure request:', payload);
  }
}

Data Encryption

class EncryptedCallback {
  private encryptionKey: string;

  constructor(encryptionKey: string) {
    this.encryptionKey = encryptionKey;
  }

  async register(): Promise<void> {
    await DailyNotification.registerCallback('encrypted-callback', {
      kind: 'local',
      target: 'encryptedHandler'
    });
  }

  async handleCallback(event: CallbackEvent): Promise<void> {
    const encryptedPayload = this.encryptPayload(event.payload);
    
    const secureEvent = {
      ...event,
      payload: encryptedPayload
    };

    await this.sendEncryptedEvent(secureEvent);
  }

  private encryptPayload(payload: any): string {
    // In a real implementation, you'd use proper encryption
    const jsonString = JSON.stringify(payload);
    return btoa(jsonString + this.encryptionKey);
  }

  private async sendEncryptedEvent(event: any): Promise<void> {
    // Implementation would send encrypted event
    console.log('Sending encrypted event:', event);
  }
}

Usage Examples

Complete Enterprise Setup

import { DailyNotification } from '@timesafari/daily-notification-plugin';

class EnterpriseNotificationManager {
  private callbacks: any[] = [];

  async initialize(): Promise<void> {
    // Register all enterprise callbacks
    await this.registerAnalyticsCallbacks();
    await this.registerCRMCallbacks();
    await this.registerDatabaseCallbacks();
    await this.registerMonitoringCallbacks();
    
    // Configure dual scheduling
    await this.configureDualScheduling();
  }

  private async registerAnalyticsCallbacks(): Promise<void> {
    const ga4Callback = new GoogleAnalyticsCallback('G-XXXXXXXXXX', 'your-api-secret');
    await ga4Callback.register();
    this.callbacks.push(ga4Callback);

    const mixpanelCallback = new MixpanelCallback('your-project-token');
    await mixpanelCallback.register();
    this.callbacks.push(mixpanelCallback);
  }

  private async registerCRMCallbacks(): Promise<void> {
    const salesforceCallback = new SalesforceCallback('your-access-token', 'your-instance-url');
    await salesforceCallback.register();
    this.callbacks.push(salesforceCallback);

    const hubspotCallback = new HubSpotCallback('your-api-key');
    await hubspotCallback.register();
    this.callbacks.push(hubspotCallback);
  }

  private async registerDatabaseCallbacks(): Promise<void> {
    const postgresCallback = new PostgreSQLCallback('your-connection-string');
    await postgresCallback.register();
    this.callbacks.push(postgresCallback);

    const mongoCallback = new MongoDBCallback('your-connection-string');
    await mongoCallback.register();
    this.callbacks.push(mongoCallback);
  }

  private async registerMonitoringCallbacks(): Promise<void> {
    const datadogCallback = new DatadogCallback('your-api-key', 'your-app-key');
    await datadogCallback.register();
    this.callbacks.push(datadogCallback);

    const newrelicCallback = new NewRelicCallback('your-license-key');
    await newrelicCallback.register();
    this.callbacks.push(newrelicCallback);
  }

  private async configureDualScheduling(): Promise<void> {
    const config = {
      contentFetch: {
        schedule: '0 8 * * *', // 8 AM
        ttlSeconds: 3600,      // 1 hour TTL
        source: 'api',
        url: 'https://api.example.com/daily-content'
      },
      userNotification: {
        schedule: '0 9 * * *', // 9 AM
        title: 'Daily Update',
        body: 'Your daily content is ready',
        actions: [
          { id: 'view', title: 'View' },
          { id: 'dismiss', title: 'Dismiss' }
        ]
      }
    };

    await DailyNotification.scheduleDualNotification(config);
  }

  async getStatus(): Promise<any> {
    return await DailyNotification.getDualScheduleStatus();
  }

  async getCallbacks(): Promise<string[]> {
    return await DailyNotification.getRegisteredCallbacks();
  }
}

// Usage
const enterpriseManager = new EnterpriseNotificationManager();
await enterpriseManager.initialize();

// Monitor status
const status = await enterpriseManager.getStatus();
console.log('Enterprise status:', status);

// List callbacks
const callbacks = await enterpriseManager.getCallbacks();
console.log('Registered callbacks:', callbacks);

Next Steps: After implementing enterprise callbacks, review the Migration Guide for platform-specific setup instructions.

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