I'm doing my site with two pieces -- the headless CMS on a subdomain where content is entered, and the root domain where I display data. Only WP is installed in the subdomain, not the root domain. In the subdomain, I created a custom post type called Staff, and then items inside are a Member. I noticed that I can't use the URL...

https://example.com/wp-json/wp/v2/posts 


([WP REST API](https://developer.wordpress.org/rest-api/reference/posts/))

...to read these items. Looking in the docs, I see that I can address it as...

https://example.com/wp-json/wp/v2/staff

When I use /staff, it shows me the core post fields, but not any of the custom field groups. (Note, I'm using the Custom Post Types plugin from TotalPress.org.)

How do I get a given staff member's custom field properties on their record? I can access someone such as:

https://example.com/wp-json/wp/v2/staff/john-smith

...but there are no custom fields in there that I attached to this record.