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
...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/?slug=john-smith
...but there are no custom fields in there that I attached to this record.
How do I use the REST API to get the custom fields attached to a custom post type?
show_in_rest
set to true, but because you used a plugin to build your post types that solution is unavailable to you. Having said that, custom post types are straight forward and there are code generators online that write the code for you based on inputs and checkboxes. You don't need a plugin to auto-register post types for you