create a promise

a.js

function longRunJob() {
  var deferred = $q.defer();
  setTimeout(function(){
    deferred.notify('About to greet ' + name + '.');
    deferred.resolve('Hello, ' + name + '!');
    deferred.reject('Greeting ' + name + ' is not allowed.');
  }, 10000)
  return deferred.promise;
}