AngularJS - Promise

promise.ng.js

/**
 * This is a factory promise that uses $http
 */
.factory('myFactory', ['$http', '$q', function($http, $q) {
  var getData = function() {
    var deferred = $q.defer();
    $http({method:"GET", url:"/index.php", cache: false})
      .success(function(data, status, headers, config) {
        date = formatDate(headers('Date'), 4);
        deferred.resolve(date);
      })
      .error(function(data, status, headers, config) {
      });
    return deferred.promise;
  };
  return { getData: getData };
}]);

/**
 * Use the promise
 */
myFactory.getData.then(function(date) {
  // do seomthing with 'date' once it is available.
}