Where should I put the custom Interfaces and Classes?

[AmRo045]

I want to create a custom interface and class for payment like this:

PaymentProvider.php

interface PaymentProvider
{
    public function create();
    public function check();
    public function verify();
}

BankAPaymentProvider.php

class BankAPaymentProvider implements PaymentProvider
{
    public function create() {}
    public function check() {}
    public function verify() {}
}

BankBPaymentProvider.php

class BankBPaymentProvider implements PaymentProvider
{
    public function create() {}
    public function check() {}
    public function verify() {}
}

Now I want to know where is the correct place to put these files in Laravel project structure?

[jmarcher]

There is no correct place, it can be whatever you want, you could just put them inside app/Contracts/