⚡ Live Sandbox: AI Dev Tool: Hono Cloudflare Workers D1

📝 Editable Code Sandbox

```python
# AI Dev Tool: FastAPI Pydantic v2 Micro-SaaS Boilerplate with PostgreSQL Vector Search Extension
# =================================================================================================
from fastapi import FastAPI, Depends
from fastapi.responses import JSONResponse
from fastapi.requests import Request
from pydantic import BaseModel, Field
from typing import Optional, List
from psycopg2 import connect, Error
from psycopg2.extras import DictCursor
from cloudflare import CloudflareAPI

# Initialize FastAPI App
app = FastAPI()

# Define Pydantic Models
class User(BaseModel):
    """User Model"""
    id: int = Field(..., description="User ID")
    name: str = Field(..., description="User Name")
    email: str = Field(..., description="User Email")

class Item(BaseModel):
    """Item Model"""
    id: int = Field(..., description="Item ID")
    name: str = Field(..., description="Item Name")
    description: str = Field(..., description="Item Description")

# Define PostgreSQL Database Connection
def get_db_connection():
    """Get PostgreSQL Database Connection"""
    try:
        conn = connect(
            host="localhost",
            database="mydatabase",
            user="myuser",
            password

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