A unified scheduler application that works with various calendar services like Calendly and Cal.com.

The application follows a simple Next.js architecture with API routes:

• Uses React with React Query for state management
• Makes direct API calls to the backend API routes
• Provides a simple interface for selecting slots and booking events

• Next.js API routes handle the integration with calendar services
• The services (CalendlyService, CalService) run server-side, keeping API keys and sensitive logic secure
• API routes return standardized responses to the frontend
• Shared utilities ensure consistent behavior across routes

• /api/scheduler/available-events - Get available time slots for a calendar link
• /api/scheduler/book-event - Book an event with the specified details

The application uses shared utilities to eliminate code duplication:

• providers.ts - Contains service provider selection logic and type definitions
• Type definitions ensure consistent API responses

• CalendlyService - Handles integration with Calendly
• CalService - Handles integration with Cal.com

npm install
npm run dev

Visit http://localhost:3000 to use the application.

1. Security: API keys and sensitive logic stay on the server
2. Performance: No client-side implementation of complex logic
3. Maintainability: Clear separation of concerns and reusable utilities
4. Flexibility: Easy to add new calendar service integrations
5. Type Safety: Consistent typing across frontend and backend