How to make a QR code on the site front-end?

There is a need to make the QR code on the website like this service.

Problem: there is a button which when pressed turns on either the webcam or the camera on your mobile (depending on where the user went), and induced and read.

Has anyone done this? There are references? The repository has seen some on github?
July 9th 19 at 13:43
1 answer
July 9th 19 at 13:45
https://github.com/dwa012/html5-qrcode

Either pull from the webqr, because there js, everything is open.

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