Multi-Source Book Price Fetching and Purchase Decision System

databricks Design a system to fetch book prices from multiple bookstores and make a purchasing decision. The client provides the desired book ID and the maximum acceptable price. Your task is to retrieve the book prices from different bookstores and make the best purchasing decision based on this information. Please describe the system architecture, the communication between components, and how to handle high concurrency requests. Example Input ['123', '456', '789']