binaryify-awesome-qr
    TypeScript icon, indicating that this package has built-in type declarations

    2.1.10 • Public • Published

    Awesome-qr.js

    license

    An awesome but simple QR code generator written in JavaScript.

    Gallery

    These QR codes were made with Awesome-qr.js 🤗

    Contents

    Getting Started

    Node.js

    Type definitions are included in the npm package.

    Please read ⚠️

    Awesome-qr.js uses node-canvas as its drawing backend. You might need to take a look at its documentation to ensure that node-canvas works on your environment.

    yarn add awesome-qr // using Yarn
    npm install --save awesome-qr // using NPM

    Awesome-qr.js prior to v2.0.0 does not work well in Node.js environment and Awesome-qr.js prior to v1.2.0 does not work in Node.js environment.

    const { AwesomeQR } = require("awesome-qr");
    const fs = require("fs");
    
    // ...
    
    const background = fs.readFileSync("background.png");
    
    const buffer = await new AwesomeQR({
      text: "AwesomeQR by Makito - Awesome, right now.",
      size: 500,
      backgroundImage: background,
    }).draw();
    
    fs.writeFileSync("qrcode.png", buffer);

    Browsers

    ⚛️   If you're using React, please use react-awesome-qr.

    <!-- import to the global scope -->
    <script src="dist/awesome-qr.js"></script>
    
    <!-- or use require.js -->
    <script>
      require(["dist/awesome-qr.js"], (AwesomeQR) => ...);
    </script>
    var background;
    var reader = new FileReader();
    reader.onload = function () {
      background = this.result;
      new AwesomeQR({
        text: "AwesomeQR by Makito - Awesome, right now.",
        size: 500,
        backgroundImage: background,
      }).draw().then((dataURL) => );
    };
    reader.readAsDataURL(file);

    Options

    Options is an object that you can pass to the generator to customize your QR code.

    type Options = {
      text: string;
      size?: number;
      margin?: number;
      correctLevel?: number;
      maskPattern?: number;
      version?: number;
      components?: ComponentOptions;
      colorDark?: string;
      colorLight?: string;
      autoColor?: boolean;
      backgroundImage?: string | Buffer;
      backgroundDimming?: string;
      gifBackground?: ArrayBuffer;
      whiteMargin?: boolean;
      logoImage?: string | Buffer;
      logoScale?: number;
      logoMargin?: number;
      logoCornerRadius?: number;
      dotScale?: number; // DEPRECATED!!
    };

    text

    Type string

    Text to be encoded in the QR code.


    size

    Type number?

    Default 400

    Size of the QR code in pixel.


    margin

    Type number?

    Default 20

    Size of margins around the QR code body in pixel.


    correctLevel

    Type number?

    Default QRErrorCorrectLevel.M ~> 0

    For more information, please refer to Error correction feature | QRcode.com | DENSO WAVE.

    Error correction level of the QR code.


    maskPattern

    Type number?

    This is an advanced option.

    Leave untouched to let the code decide which mask pattern to use.

    Specify the mask pattern to be used in QR code encoding.

    Accepts a value provided by QRMaskPattern.

    To find out all eight mask patterns, please refer to Wikipedia File:QR_Code_Mask_Patterns.svg

    For more information, please refer to Reed–Solomon codes for coders: Masking.


    version

    Type number?

    This is an advanced option.

    Leave untouched to let the code decide which version to use.

    Specify the version to be used in QR code encoding.

    Accepts an integer in range [1, 40].

    ⚠️   An error might occurs if the specified version does not have enough space for the input data.

    For more information, please refer to Information capacity and versions of QR Code | QRcode.com | DENSO WAVE.


    components

    Type ComponentOptions

    Controls the appearances of parts in the QR code.

    Read section ComponentOptions to learn more.


    colorDark

    Type string?, CSS <color>

    Default "#000000"

    For more information about CSS <color>, please refer to <color> - CSS: Cascading Style Sheets | MDN

    Color of the blocks on the QR code.


    colorLight

    Type string?, CSS <color>

    Default "#ffffff"

    Color of the empty areas on the QR code.


    autoColor

    Type boolean?

    Default true

    Automatically calculate the colorDark value from the QR code's background.


    backgroundImage

    Type (string|Buffer)?

    Default undefined

    Background image to be used in the QR code.

    Accepts a data: string in web browsers or a Buffer in Node.js.


    backgroundDimming

    Type string?, CSS <color>

    Default "rgba(0, 0, 0, 0)"

    Color of the dimming mask above the background image.


    gifBackground

    Type ArrayBuffer?

    Default undefined

    GIF background image to be used in the QR code.


    whiteMargin

    Type boolean?

    Default true

    Use a white margin instead of a transparent one which reveals the background of the QR code on margins.


    logoImage

    Type (string|Buffer)?

    Default undefined

    Logo image to be displayed at the center of the QR code.

    Accepts a data: string in web browsers or a Buffer in Node.js.

    When set to undefined or null, the logo is disabled.


    logoScale

    Type number?

    Default 0.2

    Ratio of the logo size to the QR code size.


    logoMargin

    Type number?

    Default 6

    Size of margins around the logo image in pixels.


    logoCornerRadius

    Type number?

    Default 8

    Corner radius of the logo image in pixels.


    dotScale (DEPRECATED)

    Type number?

    Default 0.4

    Use components to control the scaling in a more advanced way.

    This option is yet to be removed. You can still use this option to control the scaling of the QR code parts in the lagacy way.

    Ratio of the real size to the full size of the blocks.

    This can be helpful when you want to make more parts of the background visible.

    ComponentOptions

    ComponentOptions controls the appearances of parts in the QR code.

    type ComponentOptions = {
      data?: {
        scale?: number;
      };
      timing?: {
        scale?: number;
        protectors?: boolean;
      };
      alignment?: {
        scale?: number;
        protectors?: boolean;
      };
      cornerAlignment?: {
        scale?: number;
        protectors?: boolean;
      };
    };
    // default ComponentOptions
    
    {
      data: {
        scale: 0.4,
      },
      timing: {
        scale: 0.5,
        protectors: false,
      },
      alignment: {
        scale: 0.5,
        protectors: false,
      },
      cornerAlignment: {
        scale: 0.5,
        protectors: true,
      },
    }

    scale

    Type number?

    Scale factor for blocks in the specified area of the QR code.


    protectors

    Type boolean?

    Controls whether or not to draw the translucent protectors under the specified area in the QR code.

    Sponsors

    It is those generous sponsors who supports this project makes the Awesome-qr.js more awesome!

    I'd like to express my sincere appreciation to all the generous sponsors.

    Since sponsors' names will not show up here without their permissions, the list above only shows a part of all the sponsors. If you wish to have your name shown up here, please feel free to contact me.

    Changelog

    Check the full changelog

    Special thanks

    Awesome-qr.js is inspired by EFQRCode by EyreFree.

    EFQRCode is a tool to generate QRCode image or recognize QRCode from image, in Swift.

    If your application is in need of generating pretty QR codes in Swift, take a look at EFQRCode. It should help.

    AwesomeQRCode: Designed for Android

    Also, if you are developing Android apps, you can take a look at AwesomeQRCode, which is designed for Android projects.

    Other versions

    Copyright & License

    Awesome-qr.js is licensed under Apache License 2.0 License.

    Copyright (c) 2017-2020 Makito
    
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
    
        http://www.apache.org/licenses/LICENSE-2.0
    
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
    
    jquery-qrcode
    Copyright (c) 2011 Jerome Etienne, http://jetienne.com
    
    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.
    
    QRCode for JavaScript
    Copyright (c) 2009 Kazuhiko Arase
    URL: http://www.d-project.com/
    Licensed under the MIT license:
        http://www.opensource.org/licenses/mit-license.php
    The word "QR Code" is registered trademark of
    DENSO WAVE INCORPORATED
        http://www.denso-wave.com/qrcode/faqpatent-e.html
    

    Install

    npm i binaryify-awesome-qr

    DownloadsWeekly Downloads

    242

    Version

    2.1.10

    License

    Apache-2.0

    Unpacked Size

    16.6 MB

    Total Files

    55

    Last publish

    Collaborators

    • avatar