Is it possible to make a request from the site to launch or launch a camera (scanner) on the phone for further QR scanning?

Question

safari

Is it possible to implement such a scheme: A user surfs the site from a smartphone and on some page he is offered (button) to start the camera for further QRS scanning.
Here the question has already been raised https://qna.habr.com/q/453077
but there is still no exact answer, besides, here they asked the question of using the camera by the website, and not launching the application.

Answer 1

Create your own camera app that monitors certain types of links. The user puts it and when you click on the link, your application opens and does what you programmed there.
https://developer.android.com/training/app-links/d...

Answer 2

you can only ait should be on https

Answer 3

Yes, it's easy to do. By opening a link that the application handles.