I’ve not had luck with firebase support, which is really posting questions to stackoverflow.
All I need to do when a post is submitted, is send the title and body of the post to a specific URL (e.g. https://mydomain.com/sendNotification.php). Once that file receives the info, it does the rest of the job so that the alerts are sent.
How can I cause the post title & body to be sent to this URL? I imagine I should truncate the body to a certain number of characters; perhaps 30.