title: Node.js Swagger generate UI doc JSON feed
body: <p>I'm using Node.js and Swagger to build a restful API. The Swagger UI (demo link here <a href="http://petstore.swagger.io/" rel="nofollow">http://petstore.swagger.io/</a>) requires a JSON feed. </p>
  
  <p>How would you generate this feed based on the Swagger spec yaml file? Is there not a npm module that can iterate over the yaml file and generate the JSON feed? I'm new to Swagger so I might have overlooked something.</p>