courtesy : image from andersontech

Laravel Event Listeners ( queue )

• Event is a specific task.
• Listener listen a event then trigger one or many actions.
• Actions<- Listener <- listen (event)

# generate from kernel
php artisan event:generate
# manually create
php artisan make:listener ListenerName
php artisan make:event EventName

event

• EventName class.

listener

register

• app\Providers\EventServiceProvider.php

protected $listen = [
    'App\Events\EventName' => [
        'App\Listeners\ListenerName1',
        'App\Listeners\ListenerName2',
        'App\Listeners\ListenerNameALotOF',
    ],
];

fire / dispatching

use App\Events\OrderShipped;
event(new EventName($order));

# queue

event with queue

• table create

php artisan queue:table
php artisan migrate

• php artisan queue:table php artisan migrate
• update inside .env for (database)
• QUEUE_CONNECTION=database
• implements ShouldQueue in ListenName class

• php artisan queue::work

event with queue 2nd method

• table create

php artisan queue:table
php artisan migrate 

implements ShouldQueue in ListenName class

• php artisan queue::work database — queue=listeners