Trigger webhook for "invoice created" event

Hi,

Is there any way to trigger an external webhook to detect the creation of an invoice for an order? I understand I can trigger a webhook when an order is updated, but then I have no historical knowledge to inform me how it was updated - all I can do is check the current status, not the previous status. Is there any way to be informed of this specific event?

In general, I would really appreciate finer granularity in the webhook triggers. Having more control enable me to add features to my integration much more quickly.

Thanks!