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Problem Statement: Design a RESTful API for an online store which can be used to manage different products. Details: You need to send us a design document on how you would implement a RESTful API for an online store. It should support addition, deletion, editing and searching a product. You are free to assume everything else but make sure you document them. Make sure you have considered things like authentication (only authenticated users can add / view / edit / delete items). You are creating the API for a mobile developer who will use it to create a mobile app. It would be great if you can also include some example scenarios along with the expected request / response objects. This has to be done without having any framework in mind. You have to submit the design document for this API and the implementation in a backend language of your choice (node.js, PHP etc) with proper instructions to setup your code and test it. Bonus points for: - Writing tests - Automating setup - Deploying your code on Heroku / Google App Engine / Engine Yard / any other PaaS service.