Query custom field type in graphql

[zerinoid]

I'm trying to query a custom Field Type but in graphql settings it says:

But link wont take me to any guide, its broken.

Is there truly a guide for this?

[alancwoo]

Also struggling with this and the link in the CMS doesn't point anywhere.

However, the readme mentions using the register_graphql_acf_field_type API.

If you take a look at how some of the other ACF fields are registered, it helps, for example the ACF select field:

<?php
namespace WPGraphQL\Acf\FieldType;

class Select {

	/**
	 * Register support for the "select" ACF field type
	 */
	public static function register_field_type(): void {
		register_graphql_acf_field_type(
			'select',
			[
				'graphql_type' => [ 'list_of' => 'String' ],
			]
		);
	}
}

So in the case of my custom select field, I have:

<?php
add_action("wpgraphql/acf/registry_init", function () {
    register_graphql_acf_field_type("example_custom_field", [
        "graphql_type" => ["list_of" => "String"],
    ]);
});

Also some further notes in the docs, though they are in the process of being updated it says.

Nonetheless, this link should be corrected in the plugin itself so it points somewhere useful.