Title: WP_REST_Block_Renderer_Controller::register_routes
Published: December 6, 2018
Last modified: August 20, 2026

---

# WP_REST_Block_Renderer_Controller::register_routes()

## In this article

 * [Description](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#description)
    - [See also](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#see-also)
 * [Source](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#wp--skip-link--target)

Registers the necessary REST API routes, one for each dynamic block.

## 󠀁[Description](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#description)󠁿

### 󠀁[See also](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#see-also)󠁿

 * [register_rest_route()](https://developer.wordpress.org/reference/functions/register_rest_route/)

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#source)󠁿

    ```php
    public function register_routes() {
    	register_rest_route(
    		$this->namespace,
    		'/' . $this->rest_base . '/(?P<name>[a-z0-9-]+/[a-z0-9-]+)',
    		array(
    			'args'   => array(
    				'name' => array(
    					'description' => __( 'Unique registered name for the block.' ),
    					'type'        => 'string',
    				),
    			),
    			array(
    				'methods'             => array( WP_REST_Server::READABLE, WP_REST_Server::CREATABLE ),
    				'callback'            => array( $this, 'get_item' ),
    				'permission_callback' => array( $this, 'get_item_permissions_check' ),
    				'args'                => array(
    					'context'    => $this->get_context_param( array( 'default' => 'view' ) ),
    					'attributes' => array(
    						'description'       => __( 'Attributes for the block.' ),
    						'type'              => 'object',
    						'default'           => array(),
    						'validate_callback' => static function ( $value, $request ) {
    							$block = WP_Block_Type_Registry::get_instance()->get_registered( $request['name'] );

    							if ( ! $block ) {
    								// This will get rejected in ::get_item().
    								return true;
    							}

    							$schema = array(
    								'type'                 => 'object',
    								'properties'           => $block->get_attributes(),
    								'additionalProperties' => false,
    							);

    							return rest_validate_value_from_schema( $value, $schema );
    						},
    						'sanitize_callback' => static function ( $value, $request ) {
    							$block = WP_Block_Type_Registry::get_instance()->get_registered( $request['name'] );

    							if ( ! $block ) {
    								// This will get rejected in ::get_item().
    								return true;
    							}

    							$schema = array(
    								'type'                 => 'object',
    								'properties'           => $block->get_attributes(),
    								'additionalProperties' => false,
    							);

    							return rest_sanitize_value_from_schema( $value, $schema );
    						},
    					),
    					'post_id'    => array(
    						'description' => __( 'ID of the post context.' ),
    						'type'        => 'integer',
    					),
    				),
    			),
    			'schema' => array( $this, 'get_public_item_schema' ),
    		)
    	);
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/rest-api/endpoints/class-wp-rest-block-renderer-controller.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-block-renderer-controller.php#L36)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-block-renderer-controller.php#L36-L99)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#related)󠁿

| Uses | Description | 
| [WP_Block_Type_Registry::get_instance()](https://developer.wordpress.org/reference/classes/wp_block_type_registry/get_instance/)`wp-includes/class-wp-block-type-registry.php` |

Utility method to retrieve the main instance of the class.

  | 
| [rest_sanitize_value_from_schema()](https://developer.wordpress.org/reference/functions/rest_sanitize_value_from_schema/)`wp-includes/rest-api.php` |

Sanitize a value based on a schema.

  | 
| [rest_validate_value_from_schema()](https://developer.wordpress.org/reference/functions/rest_validate_value_from_schema/)`wp-includes/rest-api.php` |

Validate a value based on a schema.

  | 
| [register_rest_route()](https://developer.wordpress.org/reference/functions/register_rest_route/)`wp-includes/rest-api.php` |

Registers a REST API route.

  | 
| [__()](https://developer.wordpress.org/reference/functions/__/)`wp-includes/l10n.php` |

Retrieves the translation of $text.

  |

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## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_rest_block_renderer_controller/register_routes/?output_format=md#changelog)󠁿

| Version | Description | 
| [5.0.0](https://developer.wordpress.org/reference/since/5.0.0/) | Introduced. |

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