Cancellable notifications for extensions

[Semesse]

We're developing extensions for enterprises, and this problem blocked us two times.
Our extension sends a notification when some actions are available. But once the notifications are sent using vscode.window.showInformationMessage, we cannot close them programmatically anymore. The problem is that these actions are not always available, and if the user clicks on the notification button, we have to send another message telling the user 'this action is no longer available. It's annoying!

The cases are like

• Something like Code's PORTS view, but it connects microservices on selected ports to the test environment.
• Both two extensions are capable of the same action, the user only need to use one of them

We see that PORTS view uses some internal service to close the notification which doesn't expose to extension. Please consider allowing extensions to close notifications to make better user experience 🙏

[vscodenpa]

We closed this issue because we don't plan to address it in the foreseeable future. If you disagree and feel that this issue is crucial: we are happy to listen and to reconsider.

If you wonder what we are up to, please see our roadmap and issue reporting guidelines.

Thanks for your understanding, and happy coding!