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title Gateway Contract

Gateway is to help handle payment processing. With so many different payment processors our there, there should be a standard interface that developers can use to be able to access all of them.

Installation

composer require sonsofphp/pager-contract

Scope

In Scope:

  • Credit Cards, eCheck, and Tokens as Payment Methods
  • authorize, capture, void, refund
    • Supports redirect response

Out of Scope

  • Recurring Billing (Might be another component)
  • Webhooks?
  • Usage Based Billing?

Meta

<?php

$processor = new PaymentProcessor(key: '...', secret: '...');
$gateway = new Gateway($processor);

$card = new CreditCard();
$card->setNumber(...)->setCvv(...);

$transaction = $gateway->authorize(['card' => $card]);
$transaction = $gateway->capture(['card' => $card]);

// Token Based processors
$transaction = $gateway->purchase($token);

// Void and Refund
$transaction = $gateway->void(...);
$transaction = $gateway->refund(...);

Special Processor Examples

  • Round Robin Processor
  • Capped Processor