Web form with button that calls sendNotification() to all other modules
This shows the MMM-SendNotificationButton module below the MMM-ViewNotifications module. The top module shows a line anytime any module calls this.sendNotification(), which sends a message to all modules in MagicMirror.
The SendNotificationButton module has a web form you can fill out with the arguments to sendNotification(). Clicking the button just calls sendNotification().
Use this for testing your own modules that respond to broadcast messages via sendNotification().
The "Notification type:" text box at top is the first argument taken unchanged as an arbitrary string. The bottom "Body / payload:" textarea must either be empty, or be a valid JSON document. This module converts the text from the textarea into a JavaScript object and sends it.
Check the web browser's console for any error messages or faults sending to this.sendNotification(). No errors appear in the browser main window.