Работал ли в больших компаниях

# Микросервис для обработки платежей (упрощённо)
async def process_payment(payment_data: PaymentSchema):
    async with async_session() as session:
        try:
            transaction = await create_transaction(session, payment_data)
            await session.commit()
            await notify_payment_success(transaction)
            return {"status": "success"}
        except PaymentError as e:
            await session.rollback()
            logger.error(f"Payment failed: {e}")
            raise HTTPException(status_code=400, detail=str(e))