from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
from sqlalchemy.orm import declarative_base

from config import DATABASE_URL


engine = create_async_engine(DATABASE_URL, echo=False, future=True, pool_size=20, max_overflow=30, pool_timeout=15)

async_session_maker = async_sessionmaker(bind=engine, expire_on_commit=False, class_=AsyncSession)

Base = declarative_base()
