WordPress Parse Push Notification

wp_parse.php

<?php
/*
 * IMPORTANT: YOU MUST DOWNLOAD THE ParsePlatform PHP SDK IN ORDER FOR THIS TO WORK:
 * https://github.com/ParsePlatform/parse-php-sdk
 */

require('parse-php-sdk-master/autoload.php');

use Parse\ParseObject;
use Parse\ParseQuery;
use Parse\ParseACL;
use Parse\ParsePush;
use Parse\ParseUser;
use Parse\ParseInstallation;
use Parse\ParseException;
use Parse\ParseAnalytics;
use Parse\ParseFile;
use Parse\ParseCloud;
use Parse\ParseClient;

class WP_Parse_Push
{
	public function __construct(){
		add_action( 'save_post', array( $this, '_push_parse'), 15 );
	}
	
	function _push_parse( $post_id ) 
	{
		if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
			return;
		}
		
		if ( ! current_user_can( 'edit_post', $post_id ) ) {
			return;
		}
		
		$pushed = get_post_meta($post_id,'_parse_push', true);
		
		$parse = array(
			'application_id' => '', //Parse Aplication ID
			'rest_api_key' => '', //Parse REST API Key
			'master_key' => '', // Parse Master Key
		);
		
		ParseClient::initialize( 
			esc_attr($parse['application_id']), 
			esc_attr($parse['rest_api_key']), 
			esc_attr($parse['master_key'])
		);
		
		//Only Push One Time
		if( $_POST['post_status'] == 'publish' && empty($pushed) )
		{
			$data = array(
				"alert" => sanitize_text_field($_POST['post_title']),
				//"badge" => "Increment",
			);

			ParsePush::send(array(
			    "channels" => [News],
			    "data" => $data
			));
			
			update_post_meta($post_id,'_parse_push', 1);
		}
	}
}

if( is_admin() ){
	$push = new WP_Parse_Push;
}

?>