electron/docs/api/structures/notification-action.md

NotificationAction Object

• type string - The type of action, can be button or selection. selection is only supported on Windows.
• text string (optional) - The label for the given action.
• items string[] (optional) Windows - The list of items for the selection action type.

Platform / Action Support

Action Type	Platform Support	Usage of text	Default text	Limitations
button	macOS, Windows	Used as the label for the button	"Show" on macOS (localized) if first button, otherwise empty; Windows uses provided text	macOS: Only the first one is used as primary; others shown as additional actions (hover). Incompatible with hasReply (beyond first ignored).
selection	Windows	Used as the label for the submit button for the selection menu	"Select"	Requires an items array property specifying option labels. Emits the action event with (index, selectedIndex) where selectedIndex is the chosen option (>= 0). Ignored on platforms that do not support selection actions.

Button support on macOS

In order for extra notification buttons to work on macOS your app must meet the following criteria.

• App is signed
• App has its NSUserNotificationAlertStyle set to alert in the Info.plist.

If either of these requirements are not met the button won't appear.

Selection support on Windows

To add a selection (combo box) style action, include an action with type: 'selection', a text label for the submit button, and an items array of strings:

const { Notification, app } = require('electron')

app.whenReady().then(() => {
  const items = ['One', 'Two', 'Three']
  const n = new Notification({
    title: 'Choose an option',
    actions: [{
      type: 'selection',
      text: 'Apply',
      items
    }]
  })

  n.on('action', (e) => {
    console.log(`User triggered action at index: ${e.actionIndex}`)
    if (e.selectionIndex > 0) {
      console.log(`User chose selection item '${items[e.selectionIndex]}'`)
    }
  })

  n.show()
})

When the user activates the selection action, the notification's action event will be emitted with two parameters: actionIndex (the action's index in the actions array) and selectedIndex (the zero-based index of the chosen item, or -1 if unavailable). On non-Windows platforms selection actions are ignored.