Creating a custom block that stores post meta – WordPress Developer Blog
Learn how to create a custom dynamic block that saves information to custom post_meta and creates a one-to-one experience in both the block editor and on the front end. You will see an example of how to to use @wordpress/create-block package to scaffold a block.
Enable, Read, and Write Post Meta in WordPress Gutenberg
The WordPress block editor (a.k.a. Gutenberg) communicates with the database via the WordPress REST API. We can read and write post meta from within the Gutenberg editor after we enable the specific post meta field in the WordPress REST API.
How to Fix Custom Fields Not Showing in WordPress | Plugin Planet
One of the most common questions I get is "why aren't my custom fields showing in my WordPress?" And living by the rule of not repeating myself, here is a