Table of Contents

• qrcode
  • QR Code Scanner
  • Installing
  • Importing
• start
• stop

qrcode

QR Code Scanner

This is derived from html5-qrcode and in turn from jsqrcode which is in turn derived from zxing, with numberious community contributions.

This is a port to es6 with various fixes applied from the above projects, some of my own fixes, documentation, etc.

See example.html for very rough usage.

Installing

Run npm install --save qrscan-es6

Importing

Add this to your code: import qrscan from 'qrscan'

start

Starts scanning with the camera and create a video element to show. This is asynchronous, so do await qrcode.start to capture errors. what's being captured.

Parameters

• args Object
  • args.mount Element The DOM element to place the video in.
  • args.scannedCallback function When a QR code is scanned this callback is called with the string.
  • args.debugInfoCallback function Called with various debug info.
  • args.debugBW boolean If true, add a canvas below the video that shows the captured data after being converted to black and white.

Returns Object A token you should store. The token is used to stop capture.

stop

Stop capture. This doesn't delete any generated DOM elements.

Parameters

• token Object The token returned by start.