example of using a parallelized promise to grab a collection of network data

example-service-sequential.js

this.getFilms = function(char) {

	var deferred = $q.defer();

	//this array will hold references to all of the $http calls that need to be made
	var film_requests = [];
	for (var i = 0; i < char.films.length; i++) {
		film_requests.push(
			$http({
				method: 'GET',
				url: char.film[i]
			});
		);
	}

	//now we use $q.all which returns a single promise for an array of promises that need to be executed
	$q.all(film_requests).then(function(requests) {
		for (var i = 0; i < requests.length; i++) {
			char.films[i] = requests[i].data;
		}
		deferred.resolve(char);
	});

	return deferred.promise;
};