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Backend Technical Documentation 🔧

Technology Stack

  • FastAPI for high-performance API
  • Pydantic for data validation
  • Uvicorn for ASGI server
  • Python 3.12+ for modern features
  • Custom middleware for security

Core Features 🚀

API Endpoints

Resume Data Management

GET /api/resume_data       # Get formatted resume data
GET /api/resume           # Download PDF resume
GET /api/resume_file_name # Get resume filename

AI Assistant Integration

POST /api/chat           # AI chat interactions
GET /api/chat/history    # Retrieve chat history

Analytics & Telemetry

POST /api/telemetry      # Log user interactions
GET /api/health         # Service health check

Architecture 🏗️

backend/
├── app/
│   ├── api/            # API routes
│   ├── middleware/     # Custom middleware
│   ├── models/        # Data models
│   ├── utils/         # Helper functions
│   └── main.py       # Application entry
├── tests/            # Test suite
└── logs/            # Application logs

Security Features 🔒

  • CORS configuration
  • Rate limiting
  • Request validation
  • Error handling
  • Secure file operations

Data Models 📊

Resume Data

class ResumeData(BaseModel):
    personal_info: PersonalInfo
    experience: List[Experience]
    projects: List[Project]
    skills: TechnicalSkills

Chat Messages

class ChatMessage(BaseModel):
    content: str
    timestamp: datetime
    user_id: str

Logging System 📝

  • Structured JSON logging
  • Rotating file handlers
  • Error tracking
  • Performance metrics
  • Debug information

Development Guide 👩‍💻

Setup

# Install dependencies
pip install -r requirements.txt

# Start development server
uvicorn app.main:app --reload --port 8080

# Run tests
pytest

Environment Variables

ALLOWED_ORIGINS=http://localhost:5173
RESUME_FILE=YourResume.pdf
LOG_LEVEL=INFO

Best Practices

Code Organization

  • Clear module structure
  • Type hints everywhere
  • Docstrings for functions
  • Proper error handling

API Design

  • RESTful principles
  • Clear endpoint naming
  • Proper status codes
  • Comprehensive validation

Performance

  • Async operations
  • Efficient data processing
  • Proper caching
  • Resource optimization

Testing Strategy 🧪

  • Unit tests for utilities
  • Integration tests for APIs
  • Performance benchmarks
  • Security testing

Monitoring 📊

  • Health checks
  • Performance metrics
  • Error tracking
  • Usage analytics

Contributing 🤝

  1. Follow Python best practices
  2. Add tests for new features
  3. Update documentation
  4. Maintain type safety