⚡ Live Sandbox: AI Dev Tool: AGENTSmd AINative SaaS Template

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```python
# AI Dev Tool: FastAPI Pydantic v2 Micro-SaaS Boilerplate
# =============================================
# A production-ready starter boilerplate for building micro-SaaS applications
# using FastAPI, Pydantic v2, and PostgreSQL Vector Search Extension.

from fastapi import FastAPI, Depends
from pydantic import BaseModel
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import Column, Integer, String
from sqlalchemy import func
from typing import List

# Initialize FastAPI app
app = FastAPI()

# Define database connection URL
SQLALCHEMY_DATABASE_URL = "postgresql://user:password@host:port/dbname"

# Create database engine
engine = create_engine(SQLALCHEMY_DATABASE_URL)

# Create session maker
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

# Create base class for models
Base = declarative_base()

# Define a model for vector search
class VectorSearchModel(Base):
    """Model for vector search"""
    __tablename__ = "vector_search"

id = Column(Integer, primary_key=True)
    vector = Column(String)

# Create all tables in the engine
Base.metadata

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