AWS console notification dismisserator 9000 - dismiss AWS flash notifications after (about) 5 seconds

aws-notification-timer.user.js

// ==UserScript==
// @name         AWS console notification dismisserator 9000
// @namespace    https://github.com/jamesinc
// @version      1.1
// @description  Dismiss AWS flash notifications after about 5 seconds
// @author       James Ducker
// @match        https://*.console.aws.amazon.com/*
// @grant        none
// @run-at       document-end
// ==/UserScript==

(() => {
  
 		// How long, in milliseconds, to display the notification before auto-hiding it.
  	const FLASH_HIDE_MS = 5000;
    
    let dismissNotifications = ( ) => {
        // Find alerts
		    let container = document.querySelectorAll("div[awsui-app-layout-region='notifications']")[0];
      
      	if (!container) return;

      	let notifications = container.querySelectorAll("awsui-flash");

        for ( let flash of notifications ) {
            // Make sure we only run this badboy once for each notification
            if ( ! flash.hasAttribute("dismissed") ) {

                // Mark this notification as dismissed
                flash.setAttribute("dismissed", "dismissed");

                // Do a bit of scope magic
                setTimeout(((item) => {
                    return () => {
                        // Trigger click event on button node
                        let closeButton = item.querySelectorAll("button.awsui-button")[0];
                        // P U S H   T H E   B U T T O N
                        closeButton.dispatchEvent(new Event('click'));
                    }
                })(flash), FLASH_HIDE_MS);
            }
        }
    }

    // Scan for new notifications once per second
    setInterval(dismissNotifications, 1000);

})();