# qrencode-raw [![NPM version](https://badge.fury.io/js/qrencode-raw.png)](http://badge.fury.io/js/qrencode-raw) [![Dependencies](https://david-dm.org/ashi009/node-qrencode-raw.png)](https://david-dm.org/ashi009/node-qrencode-raw)

A node.js wrapper for libqrencode, but instead of encoding data to image, it
returns raw QR data in buffer, which allows you to do amazing things.

## Install

You may need to install libqrencode-dev (>= 3.2) before install this package.

    # Ubuntu
    sudo apt-get install libqrencode-dev

    # OS X
    brew install libqrencode

    npm install --save qrencode-raw

## Usage

    var qr = require('qrencode-raw');
    var res = qr.encode(data, level, version);

- **data** _string_ | _Buffer_ data to encode, cannot be empty
- **level** _QRecLevel_ error correction level:
  - `qr.ECLEVEL_L` Lowest
  - `qr.ECLEVEL_M`
  - `qr.ECLEVEL_Q`
  - `qr.ECLEVEL_H` Highest
- **version** _int_ QR code version
  - `0` auto
  - `1` ~ `40` manually set

### Result

    {
      version: 1,
      width: 21,
      data: <SlowBuffer ...>
    }

- **version** _int_ qr code version
- **width** _int_ qr code width/height
- **data** _Buffer_ qr code actual data, each byte represent a dot,
  width * height bytes in total.<br>
  You can use bitwise AND with flags on each byte to extract info for that dot:
  - `qr.DOT_BLACK` dot is black.
  - `qr.DOT_DATA_ECC` dot is part of data or ecc code
  - `qr.DOT_FORMAT` dot is format info
  - `qr.DOT_VERSION` dot is version info
  - `qr.DOT_TIMING` dot is part of timing pattern
  - `qr.DOT_ALIGN` dot is part of alignment pattern
  - `qr.DOT_FINDER` dot is part of finder pattern
  - `qr.DOT_NON_DATA` dot is non-data


A node.js wrapper for libqrencode, but instead of encoding data to image, it returns raw QR data in buffer, which allows you to do amazing things.

Socket Selected for OpenAI's Cybersecurity Grant Program

qrencode-raw

ashi009

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Ambiguous License Classifier

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Bad semver

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Bad dependency semver

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Bidirectional unicode control characters

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Bin script confusion

This Chrome extension includes content scripts that execute JavaScript on specified websites.

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Chrome: Content Script

This Chrome extension requests host permissions to access specific websites or domains.

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Chrome: Host Permission

This Chrome extension requests permissions to access browser APIs, user data, or system features.

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Chrome: Permission

This Chrome extension requests wildcard host permissions that grant broad access to websites.

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Chrome: Wildcard Host Permission

Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

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Copyleft License

Contains a Critical Common Vulnerability and Exposure (CVE).

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Title

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High CVE

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Debug access

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Deprecated

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Deprecated SPDX exception

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Deprecated license

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Possible typosquat attack

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Dynamic require

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An input argument to this GitHub Action is being passed back as an output. If a user of this action passes untrusted input, it could be used in an insecure manner by consuming workflows.

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An input argument to this GitHub Action flows into a dangerous sink (such as shell command execution). This could allow a malicious user to inject commands or exploit the action.

GitHub Actions: Input argument flows to dangerous sink

A GitHub context variable (such as issue title, PR description, or comment body) is being exported as an environment variable. These context values are user-controlled and could be exploited by subsequent workflow steps.

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A GitHub context variable (such as issue title, PR description, or comment body) is being passed back as an output. These context values are user-controlled and could be exploited by consuming workflows.

GitHub Actions: GitHub context variable passed back as output

A GitHub context variable (such as issue title, PR description, or comment body) flows into a dangerous sink (such as shell command execution). This is a critical security issue that could allow command injection or code execution attacks.

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GitHub Actions: Environment variable flows to dangerous sink

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AI has identified this package as a potential typosquat of a more popular package. This suggests that the package may be intentionally mimicking another package's name, description, or other metadata.

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AI-detected possible typosquat

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AI-detected potential malware

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AI-detected potential security risk

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Native code

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High entropy strings

Contains unicode homoglyphs which can be used in supply chain confusion attacks.

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Unicode homoglyphs

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HTTP dependency

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Install scripts

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Invalid manifest file

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Known malware

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Modified license exception

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Modified license

What is network access?

Network access

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qrencode-raw

Install

Usage

Result

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