Agregando el backend de lumen

backend/app/Providers/EventServiceProvider.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Providers;
+
+use Laravel\Lumen\Providers\EventServiceProvider as ServiceProvider;
+
+class EventServiceProvider extends ServiceProvider
+{
+    /**
+     * The event listener mappings for the application.
+     *
+     * @var array
+     */
+    protected $listen = [
+        \App\Events\ExampleEvent::class => [
+            \App\Listeners\ExampleListener::class,
+        ],
+    ];
+}