bwip

This project rocks and uses MIT-LICENSE.

This project is referencing the bwip-js project (https://code.google.com/p/bwip-js/) version 0.5.

This project is for modular of BWIP library. It supports packages for nodejs, bower & rails.

As a gem for rails provides:

• bwip 0.7.1

As a package for nodejs provides:

• bwip 0.7.1

As a package for bower provides:

• bwip 0.7.1

We are here to serve : Hatio, Lab.

You just try to show simple barcode image by request.

http://barcode.hatiolab.com:81/?bcid=code128&text=^FNC1011234567890&wscale=4&hscale=4&rotate=L&parsefnc&alttext=(01)01234567890

npm install bwip

var bwip = require('bwip');

var bcid = 'code128';
var wscale = 4;
var hscale = 4;
var rotate = 'L';
var text = '^FNC1011234567890';
var options = {
	alttext: '(01)01234567890',
	parsefnc: true
};

var png = bwip.png(bcid, text, wscale, hscale, rotate, options);

var url = require('url');
var http = require('http');
var bwip = require('bwip');

function error(res, status, message) {
	res.writeHead(status, { 'Content-Type':'text/plain' });
	res.end(message, 'ascii');
}

http.createServer(function(req, res) {

	var args = url.parse(req.url, true).query;

	// Set the defaults
    var wscale  = parseInt(args.wscale, 10) || 2;
    var hscale  = parseInt(args.hscale, 10) || 2;
	var rotate = args.rotate || 'N';
	var bcid   = args.bcid;
	var text   = args.text;

	if (!text)
		return error(res, 400, 'Bar code text not specified.\r\n');
	if (!bcid)
		return error(res, 400, 'Bar code type not specified.\r\n');

	// Remove the non-BWIPP options
    delete args.wscale;
    delete args.hscale;
	delete args.rotate;
	delete args.text;
	delete args.bcid;

	// Return a PNG-encoded image
	var png = bwip.png(bcid, text, wscale, hscale, rotate, args);

	res.writeHead(200, { 'Content-Type':'image/png' });
	res.end(png, 'binary');
}).listen(3030);

gem "bwip"

And run bundle install. The rest of the installation depends on whether the asset pipeline is being used.

The bwip files will be added to the asset pipeline and available for you to use. If they're not already in app/assets/javascripts/application.js by default, add these lines:

//= require bwip-min

function : bwip.png(bcid, text, wscale, hscale, rotate, options);

'bcid' is the name of the bwip-js barcode rendering function e.g.

'text' is the text to be bar coded.

'wscale' is an integer value from 1 .. 10. Default is 2.

'hscale' is an integer value from 1 .. 10. Default is 2.

'rotate' takes the values: N normal, unrotated (the default) R clockwise, 90 rotation L counter-clockwise, 90 rotation I inverted, 180 rotation

'options' is the object what can take any of the bar code options defined in the BWIPP documentation.

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Feel free to open an issue ticket if you find something that could be improved. A couple notes:

• If the bwip-js scripts are outdated (i.e. maybe a new version of bwip-js was released yesterday), feel free to open an issue and prod us to get that thing updated. However, for security reasons, we won't be accepting pull requests with updated bwip-js scripts.

• Support compressed barcode image

• Support width scale and height scale separately (API modified)

	[before 0.7] 
    bwip.png(bcid, text, scale, rotate, options)
    bwip.base64(bcid, text, scale, rotate, options)
    
    [after 0.7] 
    bwip.png(bcid, text, wscale, hscale, rotate, options)
    bwip.base64(bcid, text, wscale, hscale, rotate, options)

Copyright (c) 2014 Hatio, Lab. Licensed under the MIT license.