title: Asynchronous results (Promise) vs AJAX
body: <p>So I'm using Play as my MVC framework. My web application simply does calls to a Postgres database to feed data to the views. I'm currently using AJAX in the view to get the data. I figured there are times when the database will lag a bit in sending the data so I would use AJAX to allow other elements in the view to load.</p>
  
  <p>Now my question is, since I'm already using AJAX in the view, should I be using Promises in the controllers? Would it make a difference if I used Promises? I haven't had enough experience to figure out how having asynchronous actions both in the view and in the controller can affect my web application. My intuition says that the AJAX action is enough for a web application with about 100 - 150 hits a day.</p>
  
  <p>What are your insights on this?</p>