Example of fetching json every 5 seconds and updating a route's controller with it

index.js

Pd3.IndexRoute = Ember.Route.extend({
  activate: function(){
   var route = this;
   this.recurringFetchId = window.setInterval(function() {
     Ember.$.getJSON('/s/1.json').then(function(json){
       Ember.run(function(){
        route.controller.set('model', json);
       });
     });
   }, 5*1000);
  },
  deactivate: function(){
    window.clearInterval(this.recurringFetchId); 
  },
  model: function(params) {
    return Ember.$.getJSON('/s/1.json');
  }
});