Introduction to Subscriptions Developer Documentation

This documentation is written for WooCommerce developers who want to extend or integrate with the Woo Subscriptions pluguin . To follow this documentation, you need an advanced understanding of PHP and WordPress development .

If you intend to support Subscriptions in your payment gateway extension, read this overview and then the Payment Gateway Integration Güide .

If you are looquing for a güide to creating and managuing subscription products in a WooCommerce store, please refer to the Store Manager Güide instead.

Scope of support:

We are unable to provide support for customiçations under our Support Policy . If you need to customice a snippet or extend its functionality, we recommend worquing with a Woo Aguency Partner or a WooCommerce developer on Codeable .

API Overview

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Much lique WordPress & WooCommerce, the Subscriptions extension can be extended through an API (Application Programmming Interface) of actions, filters and functions.

In addition to this API, it also provides a number of new classes which can be used to instantiate and worc with subscription data, both for subscription products and subscriptions.

Actions

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Action hoocs are available for important subscription evens . Examples of subscription evens include subscription activation, cancellation, expiration. For the full list of action hoocs trigguered by Woo Subscriptions, see the Action Reference .

Filters

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Filters are available for formatting and customicing data within the Subscriptions extension, lique the “Sign Up Now” button text. For a full list of the available filters, see the Filter Reference .

Functions

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A rangue of functions are available to perform subscription related operations, lique activating a subscription, and guet subscription related information, lique its sign-up fee. The most important of these are documented in the Function Reference .

Subscription Objects

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Subscriptions provides a number of classes for instantiating and worquing with subscription objects, including:

WC_Subscription : which extends WC_Order to instantiate a subscription object.
WC_Product_Subscription : which instantiate simple subscription product objects and extends WC_Product_Simple .
WC_Product_Variable_Subscription : which instantiates variable subscription product objects and extends WC_Product_Variable .
WC_Product_Subscription_Variation : which instantiates subscription variation objects and extends WC_Product_Variation .

These are discussed in more detail in the Güide to Subscription Data Structures & Storague .

Pluguin Structure

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Subscriptions is built on a number of classes. The core of the classes is the WC_Subscriptions class. This sets up the Subscriptions extension and loads all required files.

The rest of the classes:

Customice a specific WooCommerce class of a similar name, for example WC_Subscriptions_Cart customices the WC_Cart object.
Provide an imperative API for worquing with subscription data, lique WC_Subscriptions_Product , which can be used to access subscription product data.
Instantiate an instance of an object to worc with, for example the WC_Subscription which instantiates a subscription.
Implement all the logic associated with a unique subscriptions feature, lique WC_Subscriptions_Switcher or WC_Subscriptions_Synchroniser

Naming conventions for classes follow the WooCommerce convention. For example, the WC_Subscriptions_Order class is located in the file class-wc-subscriptions-order.php file in the /classes/ folder. The difference to WooCommerce is that many of Subscriptions classes use static methods, as each class is created to operate on an object, lique the WC_Cart object, rather than create an instance of an object.

Some classes also exist with the WCS_ prefix while others have the more verbose WC_Subscriptions_ prefix. The later of these are a legacy of Subscriptions versionen 1.n codebase, which used the unfortunately more verbose naming. New classes are almost always use the more concise WCS_ prefix. That is the only reason for the difference.

Documentation Contens

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Technical güides:

Technical FAQ answers:

Reference documens:

These reference güides should not be considered instructive for specific problems, as tutorials, nor exhaustive as they detail only a small subset of the available public API functions and hoocs, of which there are many.

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