AngularJS feature for bootstrapping and accessing an external module

I am currently working on a project that involves creating a map-centric application using angularjs and esri arcgis.

My goal is to develop a separate service that includes a getMap method to return the map after it has been initialized, as well as an initMap method for initialization:

// within my controller:
MapService.initMap();
$scope.map = MapService.getMap();

This is what I have in my MapService.js:

angular.module('app')
    .service('MapService',  function($q, esriLoader) {
        var deferred = $q.defer();

        this.getMap = function(){
            if ( angular.isDefined( deferred ) ) return $q.when( deferred );
        }

        var self = this;
        this.initMap = function() {

            esriLoader.require(['esri/Map'],
                function(Map) { 

                    console.log('require callback');

                    // Create the map
                    self.map = new Map({
                        basemap: 'satellite'
                    });


                    console.log('resolve map');

                    deferred.resolve(map);


                });

        }

    });

However, I encounter an error on the line deferred.resolve(map) because deferred is undefined.

What could be causing this issue?

Answer №1

Give this a shot:

this.fetchMap = function(){
    return deferred.promise;
};

Next, utilize:

MapService.fetchMap().then(function (map) {

});

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