from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker, DeclarativeBase DATABASE_URL = "sqlite:///./data/app.db" engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False}) SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine) class Base(DeclarativeBase): pass def get_db(): db = SessionLocal() try: yield db finally: db.close()