from sqlalchemy.ext.asyncio import ( AsyncSession, async_sessionmaker, create_async_engine, ) from sqlalchemy.orm import DeclarativeBase class Base(DeclarativeBase): pass DB_URL = "postgresql+psycopg://ndmg:marselina5$@127.0.0.1:5432/rssdb" engine = create_async_engine(DB_URL, echo=True) SessionLocal = async_sessionmaker( bind=engine, expire_on_commit=False, class_=AsyncSession, ) async def get_db(): async with SessionLocal() as session: yield session