Posted On: Feb 22, 2018
To add promise functionality to a service, we inject the “$q” dependency in the service, and then use it like so:
angular.factory('testService', function($q){
return {
getName: function(){
var deferred = $q.defer();
//API call here that returns data
testAPI.getName().then(function(name){
deferred.resolve(name)
})
return deferred.promise;
}
}
})
The $q library is a helper provider that implements promises and deferred objects to enable asynchronous functionality
Source: https://docs.angularjs.org/api/ng/service/$q
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