AngularJS ajax calls

var app = angular.module('smsApp', []) ;
app.controller('mainController', function($scope, $http){

    var getMsgList = function() {
        $http.get('cfc/getSMS.cfc?method=getData').success(function(data,status){
            $scope.messages = data.DATA ;
        }) ;
    }

    var liveUpdate = setInterval(function(){
        $scope.$apply(getMsgList)
    },5000);

    getMsgList() ;
})