This mashup will mostly use the Amazon E-Commerce Services (ECS) API, though we will use some part of Joe Gregorio's Sparklines web service to chart out the progress of the sales ranking from week to week. This is how we will implement the mashup:
We will use the ItemLookup web service from Amazon ECS to get these particular details of your book:
Title
Author
Publication date
Price and currency of a new item
A picture of the book cover
We will also use the SimilarityLookup web service from Amazon ECS API to find books that are related to your book.
We will create a rake script that is executed every 24 hours to get the latest sales ranking using the ItemLookup web service from Amazon ECS API. The sales ranking is then stored in the server. Whenever the info page of the book mashup is called, we will recall the historic sales ranking information and use the Sparklines web service to create a sparkline to show its progress.