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```python # AI Dev Tool: FastAPI Pydantic v2 Micro-SaaS Boilerplate # Description: A production-ready starter boilerplate for building micro-SaaS applications using FastAPI and Pydantic v2. from fastapi import FastAPI, HTTPException from pydantic import BaseModel from typing import List, Optional from fastapi.responses import JSONResponse from fastapi.requests import Request from fastapi.middleware.cors import CORSMiddleware # Initialize the FastAPI application app = FastAPI() # Define CORS middleware app.add_middleware( CORSMiddleware, allow_origins=["*"], allow_credentials=True, allow_methods=["*"], allow_headers=["*"], ) # Define a Pydantic model for user data class User(BaseModel): id: int name: str email: str # Define a Pydantic model for error responses class ErrorResponse(BaseModel): error: str message: str # Define a route for getting all users @app.get("/users", response_model=List[User]) async def get_users(): """ Get all users. Returns: List[User]: A list of user objects. """
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