import os from sqlalchemy import create_engine from sqlalchemy.orm import declarative_base, sessionmaker from dotenv import load_dotenv load_dotenv() DATABASE_URL = os.getenv('DATABASE_URL') engine = create_engine(DATABASE_URL) SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine) Base = declarative_base() def get_db(): db = SessionLocal() try: yield db finally: db.close()