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```python # AI Dev Tool: FastAPI Pydantic v2 Micro-SaaS with PostgreSQL Vector Search Extension # Production Starter Boilerplate from fastapi import FastAPI, HTTPException from fastapi.responses import JSONResponse from pydantic import BaseModel from typing import List, Optional import psycopg2 from psycopg2 import Error from psycopg2.extras import DictCursor import logging # Configure logging logging.basicConfig(level=logging.INFO) logger = logging.getLogger(__name__) # PostgreSQL connection settings POSTGRES_HOST = "localhost" POSTGRES_DB = "mydatabase" POSTGRES_USER = "myuser" POSTGRES_PASSWORD = "mypassword" # Create a new FastAPI application app = FastAPI(title="FastAPI Pydantic v2 Micro-SaaS with PostgreSQL Vector Search Extension") # Define a Pydantic model for the data class DataModel(BaseModel): id: int name: str description: Optional[str] # Define a route for the API @app.get("/data/", response_model=List[DataModel]) def read_data(): try: # Establish a connection to the PostgreSQL database conn = psycopg2.connect( host=POSTGRES_HOST, database=POST
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