Laravel function "event" not working when broadcasting an event - laravel

Question

I have the following code:
/routes/web.php
<?php
use App\Events\UserSignedUp;
Route::get('/', function () {
$data = [
'event' => 'UserSignedUp',
'data' => [
'username' => 'JohnDoe'
]
];
//Redis::publish('test-channel', json_encode($data));
event(new UserSignedUp('JohnDoe'));
return view('welcome');
});
where I'm using the function: event(...).
I also have the following Event file:
/app/Events/UserSignedUp.php
<?php
namespace App\Events;
use Illuminate\Broadcasting\Channel;
use Illuminate\Queue\SerializesModels;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
class UserSignedUp implements ShouldBroadcast
{
use Dispatchable, InteractsWithSockets, SerializesModels;
public $username;
/**
* Create a new event instance.
*
* #return void
*/
public function __construct($username)
{
$this->$username = $username;
}
/**
* Get the channels the event should broadcast on.
*
* #return \Illuminate\Broadcasting\Channel|array
*/
public function broadcastOn()
{
return new Channel('test-channel');
}
}
Then, I'm listening the event on a Node.js file:
/socket.js
var server = require('http').Server();
var io = require('socket.io')(server);
var Redis = require('ioredis');
var port = process.env.PORT || 3000;
var redis = new Redis();
redis.subscribe('test-channel');
redis.on('message', function(channel, message) {
console.log(channel, message);
});
server.listen(port, function(){
console.log('listening on *:' + port);
});
My problem is that when on the file above: /routes/web.php I use:
event(new UserSignedUp('JohnDoe'));
the event doesn't arrive to the Node.js listener. However, the event is arriving properly to Redis because I can see it with: $ redis-cli monitor command.
[EDIT 1] The following is what I get when the event(...) function is called:
1541489387.307573 [0 127.0.0.1:52109] "SELECT" "0"
1541489387.308379 [0 127.0.0.1:52109] "RPUSH" "queues:default" "{\"displayName\":\"App\\\\Events\\\\UserSignedUp\",\"job\":\"Illuminate\\\\Queue\\\\CallQueuedHandler#call\",\"maxTries\":null,\"timeout\":null,\"timeoutAt\":null,\"data\":{\"commandName\":\"Illuminate\\\\Broadcasting\\\\BroadcastEvent\",\"command\":\"O:38:\\\"Illuminate\\\\Broadcasting\\\\BroadcastEvent\\\":7:{s:5:\\\"event\\\";O:23:\\\"App\\\\Events\\\\UserSignedUp\\\":2:{s:8:\\\"username\\\";N;s:6:\\\"socket\\\";N;}s:10:\\\"connection\\\";N;s:5:\\\"queue\\\";N;s:15:\\\"chainConnection\\\";N;s:10:\\\"chainQueue\\\";N;s:5:\\\"delay\\\";N;s:7:\\\"chained\\\";a:0:{}}\"},\"id\":\"7CjGqwcRXoZhVIJyFU8AcQ5aTW8G6Cke\",\"attempts\":0}"
In the other hand, when I use:
Redis::publish('test-channel', json_encode($data));
The event arrives properly to the Node.js listener.
[EDIT 2] The following is what I get when the Redis::publish(...) function is called:
1541489590.930114 [0 127.0.0.1:52124] "SELECT" "0"
1541489590.930872 [0 127.0.0.1:52124] "PUBLISH" "test-channel" "{\"event\":\"UserSignedUp\",\"data\":{\"username\":\"JohnDoe\"}}"
Any idea about why the event is not arriving to the Node.js listener event though is arriving to the Redis server first?
Thanks.