ldc-jeusselin/app/Http/Middleware/ValidPro.php

<?php

namespace App\Http\Middleware;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class ValidPro
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request $request
     * @param  \Closure                 $next
     * @return mixed
     */
    public function handle(Request $request, \Closure $next)
    {
        /** @var \App\Models\Customer|null */
        $customer = Auth::guard('frontend')->user();
        if ($customer and $customer->is_validated_pro) {
            return $next($request);
        }
        return redirect()->route('fo.pro.pending-validation');
    }
}