⚡ Live Sandbox: AI Dev Tool: FastAPI Pydantic v2 (xas6)

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```python
# AI Dev Tool: FastAPI Pydantic v2 Micro-SaaS Boilerplate
# Description: A production-ready FastAPI boilerplate for building micro-SaaS applications
# Author: [Your Name]

from fastapi import FastAPI, HTTPException
from pydantic import BaseModel, validator
from typing import Optional
import uvicorn
import logging

# Initialize the logger
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

# Define the FastAPI application
app = FastAPI(title="FastAPI Pydantic v2 Micro-SaaS Boilerplate", description="A production-ready FastAPI boilerplate for building micro-SaaS applications", version="1.0.0")

# Define a Pydantic model for user data
class User(BaseModel):
    """User data model"""
    id: int
    name: str
    email: str

@validator("email")
    def validate_email(cls, v):
        """Validate email address"""
        if "@" not in v:
            raise ValueError("Invalid email address")
        return v

# Define a route for creating a new user
@app.post("/users/")
async def create_user(user: User):
    """Create a new user"""
    try:
        # Save

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