ldc-bogt/app/Providers/AppServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Pagination\Paginator;
use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\App;
use Illuminate\Support\Facades\URL;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
    }

    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot()
    {
        URL::forceScheme('https');

        // * HA PROXY FIX
        App::singleton('clientIp', function () {
            if (config('app.env') === 'local') {
                return request()->getClientIp();
            } else {
                return request()->server('HTTP_X_FORWARDED_FOR') ??
                request()->getClientIp();
            }
        });
        // * LOCAL FORCE eg: for Carbon
        setlocale(LC_ALL, \sprintf(
            '%s_%s.UTF-8',
            config('app.locale'),
            \strtoupper(config('app.locale'))
        ));
        Carbon::setLocale(config('app.locale'));
        Paginator::useBootstrap();
    }
}