Moved api call to a service

frontend/app/js/tournaments-service.js

@@ -0,0 +1,17 @@
+app.factory('tournamentsService', function($http){
+
+   
+   return {
+     getAllTournaments: function() {
+       //since $http.get returns a promise,
+       //and promise.then() also returns a promise
+       //that resolves to whatever value is returned in it's 
+       //callback argument, we can return that.
+       return $http.get('/api/tournaments/').then(function(result) {
+           return result.data;
+       });
+     }
+    };
+
+});
+