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Caching /

Using WP_Rewrite instead of _GET parameters to leverage full page caching

Often in code we’re used to doing something like this However, this format doesn’t work with full page caching provided by batcache. To leverage full page caching we need to use the WP_Rewrite API.

You can either use rewrite endpoints or use the add_rewrite_rule() and add_rewrite_tag() functions . You can read more about the Rewrite API here. With the help of these functions, you can rewrite your url so that it will now be:

You can also speed up ajax requests with this technique. You can create to make ajax requests that are cached for 5 minutes for all users with batcache. This can significantly reduce request time. Note that the ajax rewrites are to index.php and not to admin-ajax.php. You are creating a new endpoint that will call your PHP function, not rewriting the query to pass to admin-ajax.php.

Last updated: November 19, 2020