AngularJS, event handling on API status change?

Question

JavaScript

I have an api that can issue statuses, for example, "closed", "open", how can I track the status change in real time, for example, transfer this status and when it changes, an event occurs, for example, brought liveday, it works on onclick and sends the number of days in the argument, but I need the reverse action, the mb startGame function which takes closed and open, and throws out the download to the user, or, in general, some kind of html

$scope.liveDay = function (days) {
                if (!$scope.process) {
                    $scope.process = true;
                    gameService.live(days, $scope.status,
                        function (result) {
                            $scope.process = false;
                            $scope.status = result;
                            draw(false);
                        }, function () {
                            $scope.process = false;
                        });
                }
            };