title: How to connect to a collection in mongodb
body: <p>I want to use the collections as DBs!.. make a connection from nodejs where you can use a collection as a normal database.??  </p>
  
  <p>The purpose of this is that I'm going to create two totally different apps, with different collections and documents, but there are data that I need to relate between the two apps. And if the two apps are using the same database, it would be much easier for me.</p>