# WooCommerce Blocks Handbook
## Table of Contents
- [Contributors](#contributors)
- [Internal developers](#internal-developers)
- [Third-party developers](#third-party-developers)
- [Designers](#designers)
- [Developer Resources](#developer-resources)
- [Tutorials](#tutorials)
The WooCommerce Blocks Handbook provides documentation for designers and developers on how to extend or contribute to blocks, and how internal developers should handle new releases.
## Contributors
> Want to contribute to the WooCommerce Blocks plugin? The following documents offer information that can help you get started.
- [Contributing](contributors/contributing/README.md)
- [Getting Started](contributors/contributing/getting-started.md)
- [Coding Guidelines](contributors/contributing/coding-guidelines.md)
- [Block Script Assets](contributors/contributing/block-assets.md)
- [CSS Build System](contributors/contributing/css-build-system.md)
- [JavaScript Build System](contributors/contributing/javascript-build-system.md)
- [JavaScript Testing](contributors/contributing/javascript-testing.md)
- [Storybook & Components](contributors/contributing/storybook-and-components.md)
## Internal developers
> Are you an internal developer? The following documents offer information about the different blocks, the Block Client APIs, the Store API, the templates and the testing process.
- [Blocks](internal-developers/blocks/README.md)
- [Stock Reservation during Checkout](internal-developers/blocks/stock-reservation.md)
- [Features Flags and Experimental interfaces](internal-developers/blocks/feature-flags-and-experimental-interfaces.md)
- [Block Data](../assets/js/data/README.md)
- [Collections Store](../assets/js/data/collections/README.md)
- [Query State Store](../assets/js/data/query-state/README.md)
- [Schema Store](../assets/js/data/schema/README.md)
- [Block Client APIs](internal-developers/block-client-apis/README.md)
- [Checkout API interface](internal-developers/block-client-apis/checkout/checkout-api.md)
- [Checkout Flow and Events](internal-developers/block-client-apis/checkout/checkout-flow-and-events.md)
- [Notices](internal-developers/block-client-apis/notices.md)
- [Editor Components](../assets/js/editor-components/README.md)
- [SearchListControl](../assets/js/editor-components/search-list-control/README.md)
- [Tag](../assets/js/editor-components/tag/README.md)
- [TextToolbarButton](../assets/js/editor-components/text-toolbar-button/README.md)
- [Icons](../assets/js/icons/README.md)
- [Legacy Build](../assets/js/legacy/README.md)
- [Store API (REST API)](../src/StoreApi/README.md)
- [Storybook](../storybook/README.md)
- [Templates](internal-developers/templates/README.md)
- [BlockTemplateController.php](internal-developers/templates/block-template-controller.md)
- [ClassicTemplate.php](internal-developers/templates/classic-template.md)
- [Classic Template Block](../assets/js/blocks/classic-template/README.md)
- [Testing](internal-developers/testing/README.md)
- [When to employ end to end testing](internal-developers/testing/when-to-employ-e2e-testing.md)
- [Smoke Testing](internal-developers/testing/smoke-testing.md)
- [Cart and Checkout Testing](internal-developers/testing/cart-checkout/README.md)
- [General Flow](internal-developers/testing/cart-checkout/general-flow.md)
- [Editor](internal-developers/testing/cart-checkout/editor.md)
- [Shipping](internal-developers/testing/cart-checkout/shipping.md)
- [Payments](internal-developers/testing/cart-checkout/payment.md)
- [Items](internal-developers/testing/cart-checkout/items.md)
- [Taxes](internal-developers/testing/cart-checkout/taxes.md)
- [Coupons](internal-developers/testing/cart-checkout/coupons.md)
- [Compatibility](internal-developers/testing/cart-checkout/compatibility.md)
- [Releases](internal-developers/testing/releases/README.md)
## Third-party developers
> Are you a third-party developer? The following documents explain how to extend the WooCommerce Blocks plugin with your custom extension.
- [Extensibility](third-party-developers/extensibility/README.md)
- Hooks
- [Actions](third-party-developers/extensibility/hooks/actions.md)
- [Filters](third-party-developers/extensibility/hooks/filters.md)
- REST API
- [Exposing your data in the Store API](third-party-developers/extensibility/rest-api/extend-rest-api-add-data.md)
- [Available endpoints to extend with ExtendSchema](third-party-developers/extensibility/rest-api/available-endpoints-to-extend.md)
- [Adding an endpoint to ExtendSchema](third-party-developers/extensibility/rest-api/extend-rest-api-new-endpoint.md)
- [Available Formatters](third-party-developers/extensibility/rest-api/extend-rest-api-formatters.md)
- [Updating the cart with the Store API](third-party-developers/extensibility/rest-api/extend-rest-api-update-cart.md)
- Checkout Payment Methods
- [Checkout Flow and Events](third-party-developers/extensibility/checkout-payment-methods/checkout-flow-and-events.md)
- [Payment Method Integration](third-party-developers/extensibility/checkout-payment-methods/payment-method-integration.md)
- [Filtering Payment Methods](third-party-developers/extensibility/checkout-payment-methods/filtering-payment-methods.md)
- Checkout Block
- [IntegrationInterface](third-party-developers/extensibility/checkout-block/integration-interface.md)
- [Available Filters](third-party-developers/extensibility/checkout-block/available-filters.md)
- [Slots and Fills](third-party-developers/extensibility/checkout-block/slot-fills.md)
- [Available Slot Fills](third-party-developers/extensibility/checkout-block/available-slot-fills.md)
- [DOM Events](third-party-developers/extensibility/checkout-block/dom-events.md)
- [Blocks Registry](../packages/checkout/blocks-registry/README.md)
- [Components](../packages/checkout/components/README.md)
- [Filter Registry](../packages/checkout/filter-registry/README.md)
- [Slot and Fill](../packages/checkout/slot/README.md)
- [Utilities](../packages/checkout/utils/README.md)
## Designers
> Are you a designer? The following documents explain how to apply design-changes to the WooCommerce Blocks plugin.
- [Theming](designers/theming/README.md)
- [All Products & filters](designers/theming/all-products-and-filters.md)
- [Cart and Checkout](designers/theming/cart-and-checkout.md)
- [Class names update in 4.6.0](designers/theming/class-names-update-460.md)
- [Class names update in 3.4.0](designers/theming/class-names-update-340.md)
- [Class names update in 3.3.0](designers/theming/class-names-update-330.md)
- [Class names update in 2.8.0](designers/theming/class-names-update-280.md)
- [Product grid blocks style update in 2.7.0](designers/theming/product-grid-270.md)
## Developer Resources
The following posts from , provide deeper insights into the WooCommerce Blocks development.
- [Store API is now considered stable](https://developer.woocommerce.com/2022/03/25/store-api-is-now-considered-stable/)
- [Available Extensibility Interfaces for The Cart and Checkout Blocks](https://developer.woocommerce.com/2021/11/09/available-extensibility-interfaces-for-the-cart-and-checkout-blocks/)
## Tutorials
The following tutorials from , help you extending the WooCommerce Blocks plugin.
- [Hiding Shipping and Payment Options in the Cart and Checkout Blocks](https://developer.woocommerce.com/2022/05/20/hiding-shipping-and-payment-options-in-the-cart-and-checkout-blocks/)
- [Integrating your Payment Method with Cart and Checkout Blocks](https://developer.woocommerce.com/2021/03/15/integrating-your-payment-method-with-cart-and-checkout-blocks/)
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