Creating a promise using $q

promises-in-angular.js

function getFile(url) {
    // create a deferred object.
    var def = $q.defer();
    
    // NOTE 
    // the $http methods success() and error()
    // have been deprecated in favor of using then()
    // from the standard Promises API. These are
    // used here to show how to create a promise.
    $http.get(url)
    .success(function(data, status) {
        // resolve the promise with good data.
        def.resolve({ data: data, status: status });
    }).error(function(data, status) {
        // reject the promise if something went wrong.
        def.reject({ data: data, status: status });
    });
    
    // return the promise object. 
    return def.promise;
}