Apple Touch Id on Web

I'd like to create a web page that displays a message and a button. If pressed, it asks for touch id verification. If the user verifies, it submits a form or redirects to another url.

The idea is to create an experience which is very similar to apple pay on web.

I will deploy this on my internal network, and all my users will have an iphone, so it can work only in specific conditions, e.g. only with mobile safari.

Any creative idea on how to achieve this experience?