GET /wp-json/oembed… not cached – can it be?

Hi @blakespot

Thank you for using our plugin!

No the oembed endpoint isn’t part of the standard REST calls that are automatically cached. Basically we cache endpoints starting with /wp-json/wp/v2 that are publically available (i.e. you don’t need authentication to use them). To be honest I wasn’t aware the oembed endpoint was part of WordPress core.

Having said that: now I know of this endpoint we will be adding it to our default cached endpoints in the future. For now you could add them to the cache by adding the following filter:

/**
 * Register the /wp-json/oembed/1.0/embed endpoint so it will be cached.
 */
function wprc_add_oembed_endpoint( $allowed_endpoints ) {
	if ( ! isset( $allowed_endpoints[ 'oembed/1.0' ] ) || ! in_array( 'embed', $allowed_endpoints[ 'oembed/1.0' ] ) ) {
		$allowed_endpoints[ 'oembed/1.0' ][] = 'embed';
	}
	return $allowed_endpoints;
}
add_filter( 'wp_rest_cache/allowed_endpoints', 'wprc_add_oembed_endpoint', 10, 1 );

Please keep in mind that although this enables the caching it doesn’t enable the automatic clearing of the cache. See our FAQ on how to enable detection of the object type (and thus the automatic clearing of the cache): https://wordpress.org/plugins/wp-rest-cache/#on%20the%20cache%20overview%20page%20i%20see%20the%20object%20type%20is%20%27unknown%27.%20can%20i%20help%20the%20wp%20rest%20cache%20plugin%20to%20detect%20the%20object%20type%20correctly%3F