how to youtube api data to print in toolset metabox using a button click before save-post

php wordpress buttonclick meta-boxes devtoolset

PHP Snippet 1:

<script>
    jQuery('.Import').live('click', function(e) {
        e.preventDefault();
        jQuery('#save').click();
    });
              
    </script>

PHP Snippet 2:

$ytURL = get_post_meta(get_the_ID(), 'wpcf-song-av', true);

PHP Snippet 3:

$ytURL = $_POST['ytext'];

PHP Snippet 4:

<input id="textbox_id" name="ytext" placeholder="YT ID here" type="text" />
<input type="submit"  name="Import" class="Import" id="Import"  />