Load Schema from json

gistfile1.js

//Service
angular.module('schemaService', [])
.service('schemaService', function($http, $q){
  var deferred = $q.defer();
  $http.get('schema.json')
  .success(function(res){
    deferred.resolve(res.data);
  });
  return deferred.promise;
});

//code in controller
$scope.schema = {}
$scope.loadSchema = function(){
  schemaService.then(function(schema){
    $scope.schema = schema;
  });
};
$scope.loadSchema();