ldc-web/app/Providers/AppServiceProvider.php

<?php

namespace App\Providers;

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

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

        // * LOCAL FORCE eg: for Carbon
        // * Remove numeric to prevent float seperator to breaking numeric transactions
        \collect([\LC_TIME, \LC_MESSAGES, \LC_COLLATE, \LC_CTYPE, \LC_MONETARY])
        ->map(function ($contant) {
            setlocale(
                $contant,
                \sprintf(
                    '%s_%s.UTF-8',
                    config('app.locale'),
                    \strtoupper(config('app.locale'))
                )
            );
        });
        Carbon::setLocale(config('app.locale'));

        // * Force bootstrap paginator
        Paginator::useBootstrap();

        // * HA PROXY FIX
        app()->singleton('clientIp', function () {
            if (
                config('app.env') === 'local'
            ) {
                return request()->getClientIp();
            }
            return request()->server('HTTP_X_FORWARDED_FOR') ?? request()->getClientIp();
        });
    }
}