AI Python Backend

This is the Python backend for the AI chat application, built with FastAPI.

Features

• RESTful API for AI chat functionality
• Integration with ModelScope AI API (compatible with OpenAI)
• Function calling support for weather information and calculator
• CORS support for frontend integration
• Modular architecture with clear separation of concerns

Project Structure

ai-python-work/
├── app/
│   ├── __init__.py
│   ├── main.py                 # FastAPI应用初始化
│   ├── config/
│   │   ├── __init__.py
│   │   └── settings.py         # 配置管理
│   ├── api/
│   │   ├── __init__.py
│   │   └── routes/
│   │       ├── __init__.py
│   │       └── chat.py         # 聊天API路由
│   ├── services/
│   │   ├── __init__.py
│   │   ├── ai_service.py       # AI服务
│   │   ├── weather_service.py  # 天气服务
│   │   └── calculator_service.py # 计算器服务
│   └── utils/
│       ├── __init__.py
│       └── constants.py        # 常量定义（如城市代码）
├── .env                        # 环境变量
├── requirements.txt            # 依赖包
├── README.md                   # 项目文档
├── run.py                      # 应用启动入口
└── main.py                     # 兼容旧版本的启动方式

Setup

1. Install dependencies:

pip install -r requirements.txt

2. Run the application:

python run.py

Or with uvicorn:

uvicorn app.main:app --reload --host 0.0.0.0 --port 8000

API Endpoints

• GET /api/chat?question={question} - Get AI response for a question

Configuration

The application uses environment variables for configuration:

• OPENAI_API_KEY - API key for the AI service (defaults to provided key)
• OPENAI_API_HOST - Host for the AI API (defaults to ModelScope)

Supported Functions

The AI can call these functions:

1. queryWeather - Get weather information for a city
2. calculator - Perform basic mathematical operations

Architecture

The project follows a modular architecture with clear separation of concerns:

• Config Layer: Handles all configuration management
• API Layer: Defines REST endpoints and handles HTTP requests
• Service Layer: Contains business logic for different functionalities
• Utils Layer: Provides utility functions and constants