This is an example application for the use of the vCards-js and qrcode library on a express server.
Start the application with docker-compose up.
The first time you will need to restart the application because the express app is served faster than the mongodb is initialized completly.
The app is served under localhost:8080.
To make the dynamic qr code work, you will need to host this app exposed to your network and change the host url's in source/models/VCard.js.