Block Bindings: Send only edited values to the POST API requrest

[cbravobernal]

Description

Since 6.6, you can now edit the values of binded custom fields in the editor. If you do that, you send all the default values to de REST API. Fortunately, those values are not saved in DB.

Screenshot of what is being sent when I only edited the pokemon_typeto "Water Type"

The rest of the fields are not connected in any block of the post.

Removing this from the fields can save some bytes sent to the server, meta fields can grow exponentially with plugins installed.

Step-by-step reproduction instructions

1. Register your meta.

register_meta(
		'post',
		'pokemon_attack',
		array(
			'show_in_rest'      => true,
			'single'            => true,
			'type'              => 'string',
			'default'           => 'Scratch',
			'object_subtype' => 'page',
		)
	);
	register_meta(
		'post',
		'pokemon_type',
		array(
			'show_in_rest'      => true,
			'single'            => true,
			'type'              => 'string',
			'default'           => 'Plant',
		)
	);

2. Create a post. Enable block bindings UI experiment. Connect a paragraph to any field created. Edit the field.
3. Save and the API request.
4. Check that the DB only contains the meta data updated, not the API request.

Environment info

• WordPress trunk, latest Gutenberg version.

Please confirm that you have searched existing issues in the repo.

• Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

• Yes

[gziolo]

Since 6.6, you can now edit the values of binded custom fields in the editor. If you do that, you send all the default values to de REST API. Fortunately, those values are not saved in DB.

Removing this from the fields can save some bytes sent to the server, meta fields can grow exponentially with plugins installed.

Can you clarify what the issue needs to be solved here? The screenshot included shows the legacy meta boxes panel enabled, so it isn't clear if that applies to that interface or to the Save functionality triggered after changes were applied through the connected block attribute. If I follow correctly, everything works as intended, but the amount of the data sent could be reduced by skipping non-modified meta values, right?

[cbravobernal]

Sorry if it was not clear.

The legacy meta boxes panel in this case does not apply. Is only the save functionality after editing a connected field.
Yes, everything works, but, as you mention, we can reduce the data sent doing what you mention.

[cbravobernal]

Closing this ticket until new considerations.