from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
from sqlalchemy.orm import sessionmaker, declarative_base
import os

DATABASE_URL = os.getenv("DATABASE_URL")

engine = create_async_engine(DATABASE_URL, echo=True, future=True)
async_session = sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
Base = declarative_base()