gistfile1.txt

$sc = ShellCommand::create()
    ->addCommand("echo HI")
    ;
$j = new RemoteShellCommandJob($sc);
$j->webhookThen(
    array('MyPromiseHandler', 'success'),
    array('MyPromiseHandler', 'error'),
    array('MyPromiseHandler', 'notify')
);

$q = VirtualTourApp::getJQStore();
$q->enqueue($j, array('queueName' => 'foo'));
// => the enqueueing code exits here, UX say "Queued for processing..."

// NOW, some out-of-band process handles the request (local or remote worker for instance), 
// and when it's done, the remote system will ping/webhook a generic webhook endpoint 
// which will resolve/reject/progress the promise associated with this job...