title: How to stream data from mongodb?
body: <p>The mongo <code>find()</code>, return all the documents in a collection. I want to store every document that I have in my mongodb in to another database. So, I want to keep polling mongodb for single new document, because <code>find().limit(1)</code> would keep returning me the same again and again. I just want mongo to return, all the document one by one. Is it possible? How can this be done?</p>
  
  <p>Edit:
  I want to just copy every entry in my mongodb instance to another db, not just the latest ones.</p>