React QR Reader MultiFormatReader

Attention!!!!

This repository and library is fork from here https://github.com/JodusNodus/react-qr-reader

Table of contents

• Use Case
• Compatibility
• Example Usage
• QrReader API
• Maintainers
• License

Use Case

You need a component for Scanning QR codes and Barcodes from a web browser based app. This project uses the zxing library with all its supported formats. (See https://github.com/zxing/zxing)

Compatibility

This component has been tested in the following browsers:

• Chrome Mac OS & Android
• Firefox Mac OS & Android
• Safari Mac OS & IOS

Since this library does internal use of hooks you need React >= 16.8.0.

Example Usage

After reading and performing the previous steps, you should be able to import the library and use it like in this example:

import React, { useState } from 'react';
import { QrReader } from 'react-qr-reader_multiformatreader';

const Test = (props) => {
  const [data, setData] = useState('No result');

  return (
    <>
      <QrReader
        onResult={(result, error) => {
          if (!!result) {
            setData(result?.text);
          }

          if (!!error) {
            console.info(error);
          }
        }}
        style={{ width: '100%' }}
      />
      <p>{data}</p>
    </>
  );
};

Component API

The QrReader component has the following props:

Properties	Types	Default Value	Description
constraints	MediaTrackConstraints	{ facingMode: 'environment' }	Specify which camera should be used (if available).
onResult	function	none	Scan event handler
videoId	string	video	The ID for the video element
scanDelay	number	500	The scan period for the QR hook
ViewFinder	component	none	ViewFinder component to rendering over the video element
className	string	none	ClassName for the container element.
containerStyle	object	none	Style object for the container element.
videoContainerStyle	object	none	Style object for the video container element.
videoStyle	object	none	Style object for the video element.

Maintainers

• Current Maintainers @ivansazdovski

• Original Author @JodusNodus

Work on repository

Node.js <= v16. yarn install yarn run storybook check it on phone on same network with https:

• generate certificate: openssl req -x509 -sha256 -nodes -newkey rsa:2048 -days 365 -keyout localhost.key -out localhost.crt
• run storybook: yarn start-storybook -p 6006 --https --ssl-cert ./localhost.crt --ssl-key ./localhost.key

License

The MIT License (MIT)

Copyright (c) 2018 Thomas Billiet

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.