HTTP request with timer by promise

httpWithTimer.js

// http://www.slideshare.net/domenicdenicola/the-promised-land-in-angular?utm_source=ng-newsletter&utm_campaign=356fbe22fa-AngularJS_Newsletter_2_11_142_10_2014&utm_medium=email&utm_term=0_fa61364f13-356fbe22fa-90279177

function timer(promise, ms) {
    var deferred = $q.defer();
    
    promise.then(deferred.resolve, deferred.reject);
    
    setTimeout(function() {
        deferred.reject(new Error('oops, timed out!'));
    }, ms);
    
    return deferred.promise;
}

function httpGetWithTimer(url, ms) {
    return timer(http.get(url), ms);
}