Portfolio AI Backend

Backend API for Lance Hebert's portfolio AI chatbot, providing intelligent responses about his professional background, skills, and experience.

Features

• AI-Powered Chat: OpenAI GPT-3.5-turbo integration with fallback responses
• Cost Control: Sophisticated usage tracking and spending limits ($4 lifetime limit)
• Anti-Hallucination: Strict context adherence and parameter tuning
• Performance Monitoring: Health check endpoint with usage statistics
• Railway Deployment: Production-ready cloud deployment

API Endpoints

Health Check

GET /health

Returns server status and usage statistics.

Chat

POST /api/chat
Content-Type: application/json

{
  "message": "What are Lance's skills?"
}

Environment Variables

• OPENAI_API_KEY: Your OpenAI API key
• PORT: Server port (default: 3001)

Usage Limits

• Daily Requests: 50
• Monthly Requests: 1000
• Lifetime Spend: $4.00 (OpenAI disabled after limit)
• Max Tokens per Request: 500

Deployment

Deployed on Railway at: https://portfolio-ai-backend-production-1fa0.up.railway.app

Development

npm install
npm run dev  # Development with nodemon
npm start    # Production

License

MIT License