Pushing data from json object to ko.obsrvablearray()

Question

I want to push some field from json object that look like that

{
  "type": "tasks",
  "levels": 3,
  "links":    [
        {
            ....
        }   

     ],
     "assignedDate": "2017-08-02 16:03:36",
     "number": 200612,
     "priority": 3,
     "createdDate": "2017-08-02 16:03:36",
     "state": "ASSIGNED",
     "ownerRole": "LoanApplication.Process Owner",
     "processName": "LoanProcess",
     .
     .
     .

}

in ko.observableArray. this is my JS code (i am using oracle jet )

define(['ojs/ojcore', 'knockout', 'ojs/ojtable'], function (oj, ko) {
    function homeContentViewModel() {
    var self = this;
    self.data = ko.observableArray();
    $.getJSON("http://localhost:8085/get/bpm").
            then(function (taches) {
                $.each(taches, function () {
                    self.data.push({
                        title: this.type,
                        releaseYear: this.levels,
                        director: this.title
                    });
                });
            });




    self.dataSource = new oj.ArrayTableDataSource(
            self.data, 
            {idAttribute: 'title'}
    );
    }
    return homeContentViewModel;
   });

ps: when i change the JSON object to a JSON array it work Any help is appreciated.

Answer 1

Thanks to @user3297291 this one worked

define(['ojs/ojcore', 'knockout', 'ojs/ojtable'], function (oj, ko) {
function homeContentViewModel() {
var self = this;
self.data = ko.observableArray();
$.getJSON("http://localhost:8085/get/bpm").
        then(function (taches) {

                self.data.push({
                    title: this.type,
                    releaseYear: this.levels,
                    director: this.title
                    });
        });




self.dataSource = new oj.ArrayTableDataSource(
        self.data, 
        {idAttribute: 'title'}
   );
   }
   return homeContentViewModel;
});