Notify users

Post messages to a user's system tray using the extensions Notifications API. Start by declaring the "notifications" permission in the manifest.json.

{
"name":"Drink Water Event Popup",
...
"permissions":[
"notifications",
],
...
}

Once the permission is declared, display a notification by calling notifications.create(). The following example is taken from the Drink water event popup sample. It uses an alarm to set a reminder to drink a glass of water. This code shows the triggering of the alarm. Follow the previous link to explore how this is set up.

chrome.alarms.onAlarm.addListener(()=>{
chrome.action.setBadgeText({text:''});
chrome.notifications.create({
type:'basic',
iconUrl:'stay_hydrated.png',
title:'Time to Hydrate',
message:"Everyday I'm Guzzlin'!",
buttons:[{title:'Keep it Flowing.'}],
priority:0
});
});

This code creates a notification on macOS like the following.