How to implement push notifications on a website using Yii2?

Question

Yii

I solve the problem with push notifications on the site. The scheme is as follows: a task is set on the site, a responsible person is appointed from the list of users (internal project). After saving the task, the responsible person should receive a notification about the assigned task. Such a notification system exists, for example, in the Bitrix 24 system. How can I implement this on a Yii2 website? Is it possible to do this with standard framework tools? Notifications should pop up without reloading the page, so I think the topic with flash messages will not work here.
What can and should be used here, how to implement it?

Answer 1

Here is a native push notification option via Google Cloud Messaging
https://developers.google.com/web/fundamentals/get...

Answer 2

Use PushAll
- Notifications to all platforms when the browser is closed - and computers and smartphones and tablets, even mail can come if the user selects this method of receiving
- There is a history of notifications
- You send a notification to a specific user or group of users, and already on the PushAll side it decides where and how to send to the selected devices.

Answer 3

As an option - pull the script every n-seconds with Ajax and check for new notifications.
Or, as already mentioned, long pool, sockets.