from sqlalchemy import create_engine from sqlalchemy.ext.declarative import declarative_base, DeclarativeMeta from sqlalchemy.orm import sessionmaker from configs import SQLALCHEMY_DATABASE_URI import json engine = create_engine( SQLALCHEMY_DATABASE_URI, json_serializer=lambda obj: json.dumps(obj, ensure_ascii=False), ) SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine) Base: DeclarativeMeta = declarative_base()