AI Dev Tool: AGENTSmd AINative SaaS Template

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Preview Code

```python
# AI Dev Tool: FastAPI Pydantic v2 Micro-SaaS with PostgreSQL Vector Search Extension
# ==============================================================================
# This is a production-ready developer code asset for building high-performance Micro-SaaS applications.
# It combines the power of FastAPI, Pydantic v2, and PostgreSQL Vector Search Extension.

from fastapi import FastAPI, Depends
from fastapi.responses import JSONResponse
from pydantic import BaseModel
from typing import List
import psycopg2
from psycopg2 import Error
from psycopg2.extras import DictCursor
import os

# Define the PostgreSQL database connection parameters
DB_HOST = os.environ.get("DB_HOST", "localhost")
DB_NAME = os.environ.get("DB_NAME", "mydatabase")
DB_USER = os.environ.get("DB_USER", "myuser")
DB_PASSWORD = os.environ.get("DB_PASSWORD", "mypassword")

# Create a FastAPI application instance
app = FastAPI()

# Define a Pydantic model for the data
# ... full runnable version includes tests & documentation