QR Codes Example

Using the built-in reader component:  html5QrcodeScanner. View scan results in the dev console


QR code link to example.com

QR code links to example.com



ngrok can be used to preview this page on mobile devices for dev, e.g.

ngrok http ${APP_PORT}

This one liner generates a tunnel QR code so you can easily open the tunnel URL generated by ngrok on your device

open $(curl -s http://localhost:4040/api/tunnels | jq ".tunnels[0].public_url" | xargs -I{} echo "https://chart.googleapis.com/chart?cht=qr&chl={}&chs=180x180&choe=UTF-8&chld=L|2")

Or access the page over your LAN. Change config to listen on an IP address and restart the server, e.g.

export APP_LISTEN=""

Follow the instructions here for Chrome DevTools (camera permissions require localhost or HTTPS). Then inspect the mobile device tabs on your host