from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine from sqlalchemy.orm import DeclarativeBase from app.core.config import settings engine = create_async_engine(settings.DATABASE_URL, echo=False) AsyncSessionLocal = async_sessionmaker(engine, expire_on_commit=False) class Base(DeclarativeBase): pass async def get_db() -> AsyncSession: async with AsyncSessionLocal() as session: yield session