SAAS REST API for WordPress

wcatl.php

<?php
	
function wcatl_api() {
    if ( !empty( $_GET['wcatl'] ) ) {
	    try {
			$input = file_get_contents( 'php://input' );
			$post = json_decode( $input, TRUE );
			if ( !empty( $post['post-id'] ) ) {
				error_log( sprintf( 'New Post Published %s', $post['post-id'] ) );
			}
		}
		catch ( Exception $e ) {
			error_log( $e->getMessage() );
		}
		exit;
    }
}
add_action( 'init', 'wcatl_api' );