Saving User cookie on Login Laravel 5.x

Updated 03/02/2016

You’ll also need to make sure you tell your Events listeners to listen appropriately:

<?php namespace App\Providers;

use Illuminate\Contracts\Events\Dispatcher as DispatcherContract;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;

class EventServiceProvider extends ServiceProvider
{
    /**
     * The event listener mappings for the application.
     *
     * @var array
     */
    protected $listen = [
        'auth.login'       => [
            'App\Listeners\AuthLoginListener',
        ]
    ];

    /**
     * Register any other events for your application.
     *
     * @param  \Illuminate\Contracts\Events\Dispatcher $events
     *
     * @return void
     */
    public function boot(DispatcherContract $events)
    {
        parent::boot($events);
        //
    }
}

If you need to store the user_id (or any value for that matter) as a cookie when a User logs in, simply add (or edit) the app/Listeners/AuthLoginListener.php to include the following:

<?php

namespace App\Listeners;

use App\Events\AuthLoginEvent;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Cookie\CookieJar;
use App\User;

class AuthLoginListener
{
    /**
     * Create the event listener.
     *
     * @return void
     */
    public function __construct()
    {
        //
    }

    /**
     * Handle the event.
     *
     * @param  AuthLoginEvent $event
     *
     * @return void
     */
    public function handle(AuthLoginEvent $event)
    {
        $user = User::find($event->user->id); // find the user associated with this event
        $user->last_online_date = new \DateTime;
        $user->save();

        $cookieJar = new CookieJar();
        $cookieJar->queue(cookie('user_id', $user->id));
    }
}