PaymentGateway.php

<?php

namespace App\Contracts;

use App\User;
use App\Card;

interface PaymentGateway {
    public function getPaymentMethodNonce( User $user );
    public function createCustomer( User $user );
    public function deleteCustomer( User $user );
    public function createCard( User $user, string $nonce );
    public function deleteCard( Card $card );
}