_load_remote_featured_patterns()

Source

function _load_remote_featured_patterns() {
	$supports_core_patterns = get_theme_support( 'core-block-patterns' );

	/** This filter is documented in wp-includes/block-patterns.php */
	$should_load_remote = apply_filters( 'should_load_remote_block_patterns', true );

	if ( ! $should_load_remote || ! $supports_core_patterns ) {
		return;
	}

	$request         = new WP_REST_Request( 'GET', '/wp/v2/pattern-directory/patterns' );
	$featured_cat_id = 26; // This is the `Featured` category id from pattern directory.
	$request->set_param( 'category', $featured_cat_id );
	$response = rest_do_request( $request );
	if ( $response->is_error() ) {
		return;
	}
	$patterns = $response->get_data();
	$registry = WP_Block_Patterns_Registry::get_instance();
	foreach ( $patterns as $pattern ) {
		$pattern['source']  = 'pattern-directory/featured';
		$normalized_pattern = wp_normalize_remote_block_pattern( $pattern );
		$pattern_name       = sanitize_title( $normalized_pattern['title'] );
		// Some patterns might be already registered as core patterns with the `core` prefix.
		$is_registered = $registry->is_registered( $pattern_name ) || $registry->is_registered( "core/$pattern_name" );
		if ( ! $is_registered ) {
			register_block_pattern( $pattern_name, $normalized_pattern );
		}
	}
}

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