Http Service And Promises

Hello everybody,

today another glimpse from the AngularJS world which I can name of how to get something from server.

So, imagine that you see following code in your controller:

var OrderController = function($scope, $http) {

    $scope.order = $http.get("/orders/1563");

}

and now is question, what's wrong with this? Just one very important issue, $http.get returns a promise, not the response itself. So in order to make it work correctly another approach will be more correct:

var OrderController = function($scope, $http) {

    var promise = $http.get("/orders/1563");

    promise.then(function(response){

      $scope.order = response.data;

          });

}

Why second approach is better? One of the reasons because promise give you guarantee that you'll receive data and display them correctly.

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