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Third-Party API Integrations

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Integration Architecture Overview

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Integration Categories

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Integration Principles

• API-First Design: All integrations use REST APIs or SDKs
• Error Handling: Comprehensive error handling and retry logic
• Monitoring: Integration health monitoring and alerting
• Security: Secure credential management and API key rotation
• Documentation: Complete integration documentation and examples

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Core Integration Services

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1. Authentication - Clerk

• SDK: @clerk/nextjs (server-side) and @clerk/clerk-react (client-side)
• Authentication: JWT-based with role-based access control
• Webhooks: User creation, updates, and session events
• Multi-tenancy: Team-based user organization

1. Create Clerk application at dashboard.clerk.com
2. Configure authentication settings and social providers
3. Set up webhook endpoints for user events
4. Configure environment variables:
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   NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY="pk_test_..."
   CLERK_SECRET_KEY="sk_test_..."
   CLERK_WEBHOOK_SECRET="whsec_..."
   

• User Info: GET /api/clerk/user
• Session Check: GET /api/clerk/session
• Webhook Handler: POST /api/clerk/webhook

Clerk → Webhook → DeelRxCRM → Database (User/TeamMembership)

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2. Email Services - Resend

• SDK: @resend/resend for server-side email sending
• Templates: HTML email templates with dynamic content
• Webhooks: Email delivery events and engagement tracking
• Analytics: Email open rates, click tracking, bounce handling

1. Create Resend account at resend.com
2. Generate API key in dashboard
3. Create email templates for order confirmations, notifications
4. Configure webhook for email events
5. Set environment variable:
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   RESEND_API_KEY="re_..."
   

• Welcome Email: New user onboarding
• Order Confirmation: Order placement confirmation
• Payment Receipt: Payment processing confirmation
• Low Stock Alert: Inventory management notifications
• Referral Rewards: Customer referral program updates

• Send Email: POST /api/email/send
• Webhook Handler: POST /api/email/webhook
• Email Templates: GET /api/email/templates

DeelRxCRM → Resend API → Email Delivery → Customer Inbox

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3. Privacy Protection - SimpleLogin

• API: REST API for alias creation and management
• Features: Anonymous email forwarding, alias lifecycle management
• Privacy: Hide real email addresses from customers/vendors
• Security: API key authentication with rate limiting

1. Create SimpleLogin account at simplelogin.io
2. Generate API key in Settings → API Keys
3. Configure webhook endpoints for alias events
4. Set environment variable:
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   SIMPLELOGIN_API_KEY="sl_..."
   

• Auto-generation: Automatic alias creation for customer communications
• Forwarding: All emails to aliases forwarded to real email
• Lifecycle: Enable/disable/delete aliases as needed
• Shadow Aliases: Pre-signup aliases for privacy protection

• Create Alias: POST /api/aliases/create
• List Aliases: GET /api/aliases
• Update Alias: PUT /api/aliases/{id}
• Delete Alias: DELETE /api/aliases/{id}

Customer Communication → SimpleLogin Alias → Forwarded → Real Email

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Monitoring & Analytics Integrations

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4. Error Tracking - Sentry

• SDK: @sentry/nextjs for automatic error capture
• Performance: Transaction tracing and performance monitoring
• Releases: Deploy-linked error attribution and user context
• Alerts: Real-time alerting for critical errors

1. Create Sentry project at sentry.io
2. Configure Next.js integration with environment detection
3. Set up release tracking with Vercel integration
4. Configure environment variables:
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   SENTRY_DSN="https://..."
   NEXT_PUBLIC_SENTRY_DSN="https://..."
   

• Automatic: Unhandled exceptions and promise rejections
• Manual: Custom error tracking for business logic
• Context: User information, request data, and custom tags
• Performance: API route timing and database query performance

• Error Reporting: Automatic via SDK
• Performance Data: GET /api/sentry/performance
• Release Tracking: POST /api/sentry/release

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5. Feature Flags - Statsig

• SDK: @statsig/js-client and @statsig/node
• Features: Feature gates, experiments, dynamic configurations
• Targeting: User-based targeting and rollout strategies
• Analytics: Feature usage tracking and conversion metrics

1. Create Statsig project at statsig.com
2. Configure server and client SDK keys
3. Set up feature gates and experiments
4. Configure environment variables:
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   STATSIG_SERVER_SECRET="secret-key"
   NEXT_PUBLIC_STATSIG_CLIENT_KEY="client-key"
   

• Server-side: Feature evaluation in API routes and server components
• Client-side: Dynamic UI rendering based on feature flags
• Gradual Rollouts: Percentage-based feature releases
• User Targeting: Target specific users or user groups

• Feature Check: GET /api/feature-flags/{feature}
• Experiment Assignment: POST /api/experiments/assign
• Analytics Events: POST /api/analytics/event

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6. Analytics - PostHog

• SDK: posthog-js for client-side tracking
• Server: posthog-node for server-side events
• Features: Event tracking, user analytics, conversion funnels
• Privacy: GDPR-compliant with user consent management

1. Create PostHog project at posthog.com
2. Configure tracking settings and privacy options
3. Set up data export and integrations
4. Configure environment variables:
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   NEXT_PUBLIC_POSTHOG_KEY="phc_..."
   NEXT_PUBLIC_POSTHOG_HOST="https://app.posthog.com"
   

• User Events: Page views, button clicks, form submissions
• Business Events: Order creation, payment processing, feature usage
• Custom Properties: User demographics, business metrics
• Funnel Analysis: User journey and conversion tracking

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Communication & Collaboration

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7. Notifications - Knock

• SDK: @knocklabs/client and @knocklabs/node
• Channels: In-app, email, SMS, push notifications
• Features: Notification preferences, delivery tracking
• Templates: Dynamic notification content and styling

1. Create Knock account at knock.app
2. Configure notification channels and templates
3. Set up user preferences and delivery settings
4. Configure environment variables:
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   KNOCK_SECRET_API_KEY="sk_..."
   NEXT_PUBLIC_KNOCK_API_KEY="pk_..."
   NEXT_PUBLIC_KNOCK_FEED_CHANNEL_ID="channel-id"
   

• Order Updates: Order status changes and confirmations
• Payment Notifications: Payment confirmations and failures
• Inventory Alerts: Low stock and inventory updates
• System Notifications: Maintenance, updates, and announcements

• Send Notification: POST /api/notifications/send
• User Preferences: GET /api/notifications/preferences
• Notification Feed: GET /api/notifications/feed

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8. Real-time Collaboration - Liveblocks

• SDK: @liveblocks/client and @liveblocks/node
• Features: Real-time cursors, live editing, presence indicators
• Storage: Persistent storage for collaborative documents
• Security: Room-based access control and permissions

1. Create Liveblocks account at liveblocks.io
2. Configure room settings and permissions
3. Set up authentication with Clerk integration
4. Configure environment variables (if required)

• Live Editing: Real-time document collaboration
• Presence: See who else is viewing/editing
• Comments: Threaded comments and discussions
• History: Version history and change tracking

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AI & Advanced Features

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9. AI Services - OpenAI (via Vercel AI SDK)

• SDK: ai package from Vercel AI SDK
• Models: GPT-4, GPT-3.5-turbo, embeddings
• Features: Chat completions, text generation, moderation
• Streaming: Real-time streaming responses

1. Create OpenAI account at openai.com
2. Generate API key and configure billing
3. Set up rate limits and usage monitoring
4. Configure environment variable:
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   OPENAI_API_KEY="sk-..."
   

• Customer Support: AI-powered customer service responses
• Content Generation: Dynamic content creation and suggestions
• Data Analysis: Business insights and recommendations
• Moderation: Content filtering and safety checks

• Chat Completion: POST /api/ai/chat
• Text Generation: POST /api/ai/generate
• Moderation: POST /api/ai/moderate

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10. Caching & Rate Limiting - Upstash Redis

• SDK: @upstash/redis for serverless Redis
• Features: In-memory caching, session storage, rate limiting
• Performance: Sub-millisecond response times
• Scalability: Auto-scaling Redis cluster

1. Create Upstash database at upstash.com
2. Configure database settings and security
3. Set up backup and monitoring
4. Configure environment variables:
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   UPSTASH_REDIS_REST_URL="https://..."
   UPSTASH_REDIS_REST_TOKEN="..."
   

• Session Storage: User session data and preferences
• Rate Limiting: API rate limiting and abuse prevention
• Cache: Database query results and computed data
• Pub/Sub: Real-time messaging between services

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Future Integrations

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11. Payment Processing - Stripe

• SDK: @stripe/stripe-js (client) and stripe (server)
• Features: Card processing, subscriptions, webhooks
• Compliance: PCI DSS Level 1 compliance
• Security: Tokenized payment processing

1. Create Stripe account at stripe.com
2. Configure payment settings and compliance
3. Set up webhook endpoints for payment events
4. Configure environment variables:
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   STRIPE_SECRET_KEY="sk_test_..."
   STRIPE_WEBHOOK_SECRET="whsec_..."
   NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY="pk_test_..."
   

• Tokenization: Client-side card tokenization
• Processing: Server-side payment processing
• Webhooks: Payment status updates and confirmations
• Reconciliation: Automatic payment matching to orders

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12. Content Management - BaseHub

• SDK: @basehub/sdk for content fetching
• Features: Content API, real-time updates, preview mode
• Performance: Edge caching and CDN integration
• Security: API key authentication

1. Create BaseHub project at basehub.com
2. Configure content schema and collections
3. Set up preview and production environments
4. Configure environment variables:
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   BASEHUB_TOKEN="token"
   NEXT_PUBLIC_BASEHUB_URL="https://..."
   

• Pages: Static pages and landing pages
• Blog Posts: Article content and metadata
• Documentation: Help articles and guides
• Settings: Global configuration and preferences

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Integration Management

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Health Monitoring

• Database: Connection pool status and query performance
• External APIs: Response times and error rates
• Webhooks: Delivery status and retry attempts
• Rate Limits: API quota usage and limits

• Sentry: Error tracking and performance monitoring
• Application Metrics: Custom metrics for integration health
• Alerting: Automated alerts for integration failures
• Dashboards: Real-time integration status dashboards

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Security & Compliance

• Rotation: Regular API key rotation (90-day cycle)
• Storage: Secure environment variable storage
• Access Control: Least-privilege access patterns
• Audit Logging: All API access logged and monitored

• Encryption: Sensitive data encrypted in transit and at rest
• PII Handling: Personal data identification and protection
• Compliance: GDPR, CCPA, and SOC 2 compliance
• Data Retention: Configurable data retention policies

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Error Handling & Resilience

• Exponential Backoff: Retry failed requests with backoff
• Circuit Breaker: Prevent cascade failures
• Fallbacks: Graceful degradation when services unavailable
• Idempotency: Prevent duplicate operations

• Dead Letter Queues: Failed message processing
• Manual Recovery: Administrative tools for error resolution
• Alerting: Immediate notification of critical failures
• Documentation: Runbooks for common failure scenarios

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Integration Development

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Adding New Integrations

1. Requirements Analysis: Define integration requirements and use cases
2. Vendor Evaluation: Select appropriate third-party service
3. API Documentation: Review API documentation and limitations
4. Implementation: Develop integration with proper error handling
5. Testing: Comprehensive testing including failure scenarios
6. Documentation: Update integration documentation
7. Monitoring: Set up monitoring and alerting

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Integration Testing

• Unit Tests: Individual integration function testing
• Integration Tests: End-to-end integration testing
• Mock Testing: Third-party service mocking for reliability
• Load Testing: Performance testing under load
• Failure Testing: Testing failure scenarios and recovery

• Jest: Unit and integration testing
• Vitest: Fast testing for development
• Playwright: End-to-end browser testing
• Load Testing: Artillery or similar tools

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Support & Resources

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Integration Status Dashboard

• Real-time Status: Current integration health status
• Historical Data: Integration performance over time
• Alert History: Past incidents and resolutions
• Documentation Links: Quick access to vendor documentation

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Vendor Documentation

• Clerk: docs.clerk.com
• Resend: resend.com/docs
• SimpleLogin: simplelogin.io/docs
• Sentry: docs.sentry.io
• Statsig: docs.statsig.com
• Knock: docs.knock.app
• Liveblocks: docs.liveblocks.io
• OpenAI: platform.openai.com/docs

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Support Contacts

• Integration Issues: [email protected]
• Vendor Support: Contact individual vendor support
• Emergency Support: [email protected]