Get by taxonomy/category parent for WP REST API

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Add the ability to get posts by the parent category in the WordPress REST API. Usage You can use the new endpoint with: /wp-json/wp/v2/posts?parent_category=[XXX] Features 100% free Get posts by the category they belong in (including parent, grandparent, etc categories) Privacy policy This plugin works locally. No data is sent to other servers, or stored anywhere.