querying to custom field over ACF REST API

Iam using the “ACF” plugin with “ACF to REST API”. I found a solution for querying a custom field over REST API.

I inserted this into my functions.php:

add_filter( 'rest_{type}_query', function( $args ) {
    $args['meta_query'] = array(
        array(
            'key'   => 'my_field',
            'value' => esc_sql( $_GET['field'] ),
        )
    );

    return $args;
} );

Url: /wp-json/wp/v2/posts?field=test The wildcard {type} can be: post | user | comment | attachment | custom post type | taxonomy

This solution is not perfect. Once this code snipped is added, the filter works but if you go to /v2/{type} <– which usually lists all, this stops working.

Any solution for that?

The page I need help with: [log in to see the link]