woocommerce-blocks

WooCommerce checkout extensibility with Gutenberg blocks involves registering inner blocks and using SlotFills to inject custom React components. This replaces rigid shortcodes with modular, server-side rendered elements for flexible storefront experiences.

To persist custom checkout field data across page reloads, you augment the WooCommerce Store API. This requires integrating Store API extensions in your PHP and React code to properly save and retrieve the custom data during the cart and checkout flow.

Yes, building custom WooCommerce cart blocks requires PHP for block registration and server-side rendering, alongside JavaScript and React for the frontend interface. Extensibility hooks and Store API persistence also depend on this dual-stack implementation.

Block-based checkout replaces rigid shortcode templates with React-powered Gutenberg blocks. This modern approach allows developers to use inner blocks, SlotFills, and Store API extensions to add custom fields and promo content without directly editing core PHP templates.

Yes, you can add custom fields without editing core templates by using Gutenberg block extensibility hooks. Developers register inner blocks and leverage SlotFills to inject custom components directly into the React-based checkout flow.