Execute function after inner $http call finishes - AngularJS

Question

In my code I am calling this function loadAllOrders();. This is the skeleton of its implementation,

$scope.loadAllOrders = function() {
    orderSvc.GetAllOrders().then(function(response) {
       // Does a bunch of stuff here
    });
}

GetAllOrders() uses a $http to get data from a database. loadAllOrders() then formats all the data and inserts them into an ng-repeat.

I want to be able to call a function when loadAllOrders() has finished. For example,

$scope.loadAllOrders().then(
    //I am doing something
);

How can this be achieved?

your promise to achieve this

Wasiq Muhammad
– Wasiq Muhammad

2016-07-12 15:32:14 +00:00
Commented Jul 12, 2016 at 15:32 — Wasiq Muhammad
– Wasiq Muhammad, Commented Jul 12, 2016 at 15:32

Jameel Moideen · Accepted Answer · 2016-07-12 15:31:55Z

3

You can write custom promise for loadAllOrders in angular JS

You have to inject $q service as a dependency on your controllers or service

$scope.loadAllOrders = function() {
var deferred = $q.defer();
    orderSvc.GetAllOrders().then(function(response) {
       // Does a bunch of stuff here
deferred.resolve(response);
    });
 return deferred.promise;
}

https://docs.angularjs.org/api/ng/service/$q

Hope this helps

answered Jul 12, 2016 at 15:31

Jameel Moideen

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3 Comments

Gary Holiday Over a year ago

How do I then execute the function after the promise is returned?

Jameel Moideen Over a year ago

$scope.loadAllOrders().then(function(result) { }); same as like you have written on your question

Muli Yulzary Over a year ago

Beware of the promise anti-pattern. Just return orderSvc.GetAllOrders() to return the promise.

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