service_request.js

            $scope.reset_messages();
            $http.post('url').success(function(data){
                $scope.status = data.status;
                if (data.status) {
                    $scope.success_messages = data.success_messages;
                }
                else {
                    $scope.error_messages = data.error_messages;
                }
            }).error(function() {
                $scope.error_messages.push("There was an error processing request. Please try again later");
                $scope.status = false;
            });