Hackage :: [Package]

qr-imager: Library to generate QR codes from bytestrings and objects

[ bsd3, data, deprecated, image, library, qr ] [ Propose Tags ]
Deprecated in favor of qrcode-juicypixels, qrcode-core

Please see README.md

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Versions [RSS] 0.1.0.0, 0.1.0.1, 0.1.2.0, 0.1.2.1, 0.2.0.0, 0.2.1.0, 0.2.1.1, 0.2.1.2, 0.2.1.3, 0.2.2.0, 1.0.0.0, 1.0.0.1, 1.0.0.2, 1.0.0.3, 1.0.1.0, 1.0.1.1, 1.0.1.2, 1.0.1.3, 1.0.1.5, 1.0.1.6, 1.0.1.7, 1.0.1.8, 2.0.0.0, 2.0.0.1, 2.0.0.2
Dependencies aeson, base (>=4.7 && <5), bytestring, cryptonite, directory, haskell-qrencode, jose-jwt, JuicyPixels, lens, qr-imager, vector [details]
License BSD-3-Clause
Copyright Copyright: (c) 2016 Vanessa McHale
Author Vanessa McHale
Maintainer tmchale@wisc.edu
Category Data
Home page https://github.com/vmchale/QRImager#readme
Source repo head: git clone https://github.com/vmchale/QRImager
Uploaded by vmchale at 2016-12-08T20:54:10Z
Distributions
Reverse Dependencies 1 direct, 0 indirect [details]
Executables QRPipe
Downloads 14144 total (58 in the last 30 days)
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Status Docs available [build log]
Last success reported on 2016-12-08 [all 1 reports]

Readme for qr-imager-0.1.0.0

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#QR Imager Library This is a library to generate .png files from QR codes.

##Dependencies The library depends on the C library https://github.com/fukuchi/libqrencode which you will need to install separately.

##Usage The library exports main functions - createQRCode and byteStringToQR - and their secured/signed versions. The first takes any object that is an instance of ToJSON and writes an image to file, while the second takes a (strict) bytestring and writes it to file.

##Executable

###Installation For building haskell, the best tool is currently http://haskellstack.org. Install it, and then type

stack install --install-ghc

in the appropriate directory, and it will be installed on your path.

###Use

Compiling will generate an executable called QRPipe which reads from stdin and outputs a file as the second argument, e.g.

echo 'My name is:" | QRPipe "nametag.png"