Addon Development

WP Appointments is designed to be extended through WordPress plugins that hook into its registries and APIs.

What Can an Addon Do?

Extension Point	Example
Custom Bookable Type	Register “Court”, “Room”, or “Equipment” as a new bookable entity type
Availability Layer	Add holiday blocks, maintenance windows, or custom rules
Admin UI	Add custom pages, form fields, or admin panels using shared components
REST API	Register additional endpoints for your custom types

Addon Structure

A WP Appointments addon is a standard WordPress plugin that depends on the core plugin:

my-addon/
├── my-addon.php          # Plugin header + bootstrap
├── src/
│   └── MyBookableType.php # PHP handler extending AbstractBookableTypeHandler
├── assets/
│   └── admin.tsx          # React admin UI (optional)
├── package.json           # For JS build (optional)
└── webpack.config.js      # Webpack config (optional)

Guides

• Registering a Bookable Type — PHP-side registration
• PHP Setup — plugin bootstrap and dependencies
• JavaScript Setup — admin UI with shared packages