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Code Generation Examples ​

Learn how MetaGPT generates production-ready code through examples.

Web Application ​

Input Requirement ​

python
company.start_project("""
Create a Flask web application with:
- User authentication
- RESTful API
- SQLite database
""")

Generated Structure ​

webapp/
├── app/
│   ├── __init__.py
│   ├── models.py
│   ├── routes.py
│   └── auth.py
├── tests/
│   └── test_app.py
└── config.py

Sample Output ​

python
# app/models.py
from flask_sqlalchemy import SQLAlchemy
from werkzeug.security import generate_password_hash

db = SQLAlchemy()

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(80), unique=True)
    password_hash = db.Column(db.String(120))

API Service ​

Input Requirement ​

python
company.start_project("""
Create a FastAPI service for:
- Product inventory management
- CRUD operations
- JWT authentication
""")

Generated Structure ​

api_service/
├── app/
│   ├── main.py
│   ├── models.py
│   ├── schemas.py
│   └── auth.py
└── tests/
    └── test_api.py

Sample Output ​

python
# app/main.py
from fastapi import FastAPI, Depends
from .auth import get_current_user

app = FastAPI()

@app.get("/products")
async def get_products(user = Depends(get_current_user)):
    return {"products": []}

Best Practices ​

Code Quality ​

  • PEP 8 compliance
  • Type hints
  • Docstrings
  • Error handling

Testing ​

  • Unit tests
  • Integration tests
  • Test coverage

Documentation ​

  • API documentation
  • Setup instructions
  • Usage examples