web/web_notify/readme/USAGE.md

To send a notification to the user you just need to call one of the new methods defined on res.users:

self.env.user.notify_success(message='My success message')

or

self.env.user.notify_danger(message='My danger message')

or

self.env.user.notify_warning(message='My warning message')

or

self.env.user.notify_info(message='My information message')

or

self.env.user.notify_default(message='My default message')

The notifications can bring interactivity with some buttons.

• One allowing to refresh the active view
• Another allowing to send a window / client action

The reload button is activated when sending the notification with:

The action can be used using the action keyword and we can choose which name to give to our button with the button_name key in the action context params key:

action = self.env["ir.actions.act_window"]._for_xml_id('sale.action_orders')
action.update({
   'res_id': self.id,
   'views': [(False, 'form')],
})
action["context"].setdefault("params", {})
action["context"]["params"]["button_name"] = "Sales"
action["context"]["params"]["button_icon"] = "fa-eye"
self.env.user.notify_info('My information message', action=action)

You can test the behaviour of the notifications by installing this module in a demo database. Access the users form through Settings -> Users & Companies. You'll see a tab called "Test web notify", here you'll find two buttons that'll allow you test the module.