ldc-nature-and-respect/app/Http/Middleware/Lang.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
use Symfony\Component\HttpFoundation\Response;

class Lang
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request                                                         $request
     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response) $next
     * @return \Symfony\Component\HttpFoundation\Response
     * @phpcs:disable Squiz.Commenting.FunctionComment.IncorrectTypeHint
     */
    public function handle(Request $request, Closure $next): Response
    {
        // phpcs:enable
        $prefix = Route::current()->action['prefix'];
        if ($prefix === '/bo') {
            app()->setLocale(session()->get('lang', config('app.locale')));
            return $next($request);
        }
        return $next($request);
    }
}