A WhatsApp bot powered by LangChain and OpenAI that processes messages, handles multimedia content, and provides AI-assisted responses. The bot can understand YouTube links, process general queries, and maintain conversation context.

• LangChain Service (app/services/langchain_service.py):

  • Handles AI response generation using LangChain
  • Processes YouTube links and extracts transcripts
  • Manages conversation chains and intent detection

• OpenAI Service (app/services/openai_service.py):

  • Manages OpenAI API interactions
  • Handles thread management for conversations
  • Processes multimedia content

• Views (app/views.py):
  • Manages incoming WhatsApp webhook events
  • Handles message verification and security
  • Routes messages to appropriate processors

• WhatsApp Utils (app/utils/whatsapp_utils.py):

  • Processes incoming messages
  • Handles media downloads
  • Formats responses for WhatsApp

• Progress Tracker (app/utils/progress_tracker.py):

  • Monitors application progress
  • Logs important events
  • Provides debugging information

• Security Decorators (app/decorators/security.py):
  • Validates webhook signatures
  • Ensures secure communication
  • Protects endpoints

1. Message Processing

   • Text message handling
   • Image processing
   • Document handling
   • Audio/Video message support

2. AI Capabilities

   • Context-aware conversations
   • YouTube content analysis
   • Natural language understanding
   • Multi-purpose response generation

3. System Features

   • Progress tracking
   • Error handling
   • Secure webhook verification
   • Environment configuration

1. Meta Developer Account
2. WhatsApp Business API access
3. OpenAI API key
4. Required Python packages (see requirements.txt)

The application uses environment variables for configuration:

• ACCESS_TOKEN
• APP_ID
• APP_SECRET
• VERIFY_TOKEN
• OPENAI_API_KEY
• OPENAI_ASSISTANT_ID

1. Set up environment variables
2. Install dependencies: pip install -r requirements.txt
3. Run the application: python run.py

• Access /progress endpoint for real-time progress monitoring
• Check console logs for detailed debugging information
• Monitor webhook events through Meta's developer dashboard

1. Enhanced multimedia processing
2. Additional AI model integration
3. Advanced conversation management
4. Analytics and reporting features