@webreflection/qrcode

^{Social Media Photo by Risto Kokkonen on Unsplash}

Based on @zxing/library, this module exports a scan({ facingMode = 'environment' }) or write(text[, options]) async utilities that helps users finding a QR Code and grab its result as data, or show one on any page.

Live Demo

The facingMode property is described on MDN.

// pre-bundled file @ https://cdn.jsdelivr.net/npm/@webreflection/qrcode/dist.js
import { scan, write } from '@webreflection/qrcode';

const result = await scan();

// result.text, result.bytes, result.format
console.log(result);

// regenerate the QR code (SVG)
document.body.appendChild(
  await write(result.text)
  // pass { canvas } element to have
  // an image drawn in it instead
);

The LICENSE is the same used in @zxing/library as I haven't added/done much else in here, just re-packaged and added minimalistic logic to help scanning.