mivita/app/Http/Middleware/Checkout.php

<?php

namespace App\Http\Middleware;

use App\Models\ShoppingInstance;
use App\Models\UserShop;
use Closure;
use Auth;
use phpDocumentor\Reflection\DocBlock\Tags\Uses;
use App\Services\Util;
use Yard;

class Checkout
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        if($identifier = ShoppingInstance::where('identifier', $request->route('identifier'))->first()){
            //user shop
            $user_shop = $identifier->user_shop;
            if($user_shop &&  $user_shop->active == 1){
                Util::setPostRoute('user.');
                \Session::put('user_shop', $user_shop);
                \Session::put('isCheckout', true);

                if($identifier->auth_user_id){
                    \Session::put('auth_user', $identifier->auth_user);
                }
            }
            Yard::instance('shopping')->destroy();
            //restore yard
            Yard::instance('shopping')->restore($request->route('identifier'));
            Yard::instance('shopping')->setShippingCountryWithPrice($identifier->country_id);

            ShoppingInstance::where('identifier',  $request->route('identifier'))->delete();
            $request->route()->forgetParameter('identifier');

            return $next($request);
        }

        if(\Session::has('user_shop') &&  \Session::has('isCheckout') && Yard::instance('shopping')->count()){
            return $next($request);
        }

        return redirect(config('app.url'));

    }
}