Mini-plugin to add an additional Google Analytics tracking code to web stories

web-stories-auto-analytics.php

/**
 * Plugin Name: Web Stories Additional GA Tracking
 * Description: Mini-plugin to add an additional Google Analytics tracking code to web stories
 * Plugin URI: https://wp.stories.google/
 * Author: Pascal Birchler, Google
 * Author URI: https://opensource.google.com/
 * Version: 0.0.1
 * License: Apache License 2.0
 * License URI: https://www.apache.org/licenses/LICENSE-2.0
 */

 // SEE https://amp.dev/documentation/components/amp-pixel/
add_action(
	'web_stories_print_analytics',
	static function () {
		// TODO: REPLACE WITH YOUR OWN GOOGLE ANALYTICS TRACKING ID.
		$tracking_id = 'UA-1234567';
		?>
		<amp-story-auto-analytics gtag-id="<?php echo esc_attr( $tracking_id ); ?>"></amp-story-auto-analytics>
		<?php
	}
);

// Prevent Sitekit from loading UA
add_filter(
    'googlesitekit_analytics_tag_amp_blocked',
    static function ( $blocked ) {
       return $blocked ?: is_singular( 'web-story' );
    }
);