title: Is it possible to prevent bulk queries in RESTful API?
body: <p>I would like to ask, if it is possible, to prevent BAD users doing many queries to my RESTful web API. Here is my situation:</p>
  
  <p>My client app makes a query to web API. This query consists of EAN code of a product. Server replies with product parameters and other product information. Now, what I am trying to prevent is, my competitor (BAD user) to steal precious data which I needed to gather manually. The problem is, that BAD user has the list of all the EAN codes and can do automatic queries to get all the datas from my API. </p>