FacetWP - pass ACF data into template

functions.php

<?php

/**
 * To access the data within the "Query Arguments" box, use:
 * $this->http_params['choose_city']
 */

add_action( 'wp_footer', function() {
    $choose_city = get_field( 'choose_city' );
?>
<script>
(function($) {
    $(document).on('facetwp-refresh', function() {
        FWP_HTTP.choose_city = <?php echo json_encode( $choose_city ); ?>;
     });
})(jQuery);
</script>
<?php
}, 100 );