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How Do I Create a Payment Gateway Plugin for WooCommerce?

Last updated on January 15, 2023 @ 11:13 am

It’s no secret that WooCommerce is one of the most popular eCommerce platforms on the web. According to BuiltWith, WooCommerce powers over 28% of all online stores.

That means there’s a large number of WooCommerce store owners who are always looking for ways to improve their stores, and one way to do that is by adding a payment gateway plugin.

If you’re a developer, creating a payment gateway plugin for WooCommerce can be a great way to earn some extra income. In this article, we’ll show you how to create a payment gateway plugin for WooCommerce.

First, you’ll need to create a new folder in your WordPress installation called /wp-content/plugins/woo-payment-gateway/.

Next, you’ll need to create two files in that folder:

  • payment-gateway.php
  • gateway-class.php

You can name these files whatever you like, but we’ll use these names for the sake of this article.

In the payment-gateway.php file, you’ll need to add the following code:

/*
Plugin Name: WooCommerce Payment Gateway
Plugin URI: https://www.example.com/
Description: A payment gateway for WooCommerce
Version: 1.0.0
Author: John Doe
Author URI: https://www.com/
License: GPLv2 or later
Text Domain: woo-payment-gateway
*/

In the gateway-class.php file, you’ll need to create a new class that extends the WC_Payment_Gateway class. This class will handle all the functionality for your payment gateway plugin.

You’ll need to define several functions in this class, including:

  • __construct(): This function will set the properties of your payment gateway, such as the title, description, and other settings.
  • init_form_fields(): This function will define the fields that will be displayed in the WooCommerce settings for your payment gateway.
  • process_payment(): This function will handle the processing of the payment, such as redirecting the customer to the payment gateway’s website or processing the payment on your website.
  • payment_fields(): This function will display the payment fields on the checkout page.

It’s also important to add the necessary code to handle the payment gateway’s response and update the order status accordingly.

You can also include other functions like ‘is_available()’ to make the gateway available only on certain conditions. And ‘thankyou_page()’ to display thank you message after successful payment.

Once you have finished writing the code for your plugin, you can activate it in the WordPress plugin dashboard and configure it in the WooCommerce settings.

Remember that creating a payment gateway plugin requires a good understanding of WooCommerce and payment gateway integration, so be sure to thoroughly test your plugin before making it available to the public.

Drew Clemente

Drew Clemente

Devops & Sysadmin engineer. I basically build infrastructure online.