from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker, DeclarativeBase from app.config import get_settings settings = get_settings() engine = create_engine(settings.database_url, pool_pre_ping=True) SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine) class Base(DeclarativeBase): pass def get_db(): db = SessionLocal() try: yield db finally: db.close()