original_problem.md

The Gilded Rose Expands

As you may know, the Gilded Rose* is a small inn in a prominent city that buys and sells only the finest items. The shopkeeper, Terry, is looking to expand by providing merchants in other cities with access to the shop's inventory via a public HTTP-accessible API. The Gilded Rose would like to utilize a surge pricing model like Uber to increase the price of items by 10% if they have been viewed more than 10 times in an hour. API requirements

• Retrieve the current inventory (i.e. list of items)
• Buy an item (user must be authenticated)

Here is the definition for an item:

class Item 
{ 
    public	String	Name {get; set;} 
    public	String	Description {get; set;} 
    public	int	Price {get; set;} 
} 

A couple questions to consider:

• How do we know if a user is authenticated?
• Is it always possible to buy an item?

Please model (and test!) accordingly. Using a real database is not required.

Deliverables

1. A runnable system with instructions on how to build/run your application

   • The application should be built using Java and the Spring framework

2. A system that can process the two API requests via HTTP

3. Appropriate tests (unit, integration etc)

4. A quick explanation of:

   • Your application, how you set it up, how it was built, how you designed the surge pricing and the type of architecture chosen.
   • Choice of data format. Include one example of a request and response.
   • What authentication mechanism was chosen, and why?

* The Gilded Rose is a refactoring/TDD exercise created by Terry Hughes and Bobby Johnson. You can safely ignore it during the coding exercise.