I need a script that should do the following:
1) It should connect to the Amazon db through their API and get all the textbooks (not books...textbooks there is a difference) listed on the site
2) For all textbooks (it should get the ISBN, Title, Author, Published date & Category (accounting, engineering etc)
3) The script will run weekly through a CRON job, so it should check if there are not any duplicates ISBN entry in the db before adding the textbook to the database. The script should also be optimized to not check against the same categories for new books if it only searched for that category within a week.
Let me know if you need further clarification. Thanks