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Codes

Notice that I am not the author of the code, I am just the creator of an npm module out of the great library from https://code.google.com/p/bwip-js/.

Install

npm install rescode

Example

var codes = require("rescode");

function( res, req ) 
{
	var data = codes.create("ean13","4719512002889");
    
    res.setHeader("Content-Type","image/png");
	res.end( data );
    
    OR
    
    res.end("<html><img src='data:image/png;base64,"+data.toString("base64")+"' /></html>");
}

Example loading specific barcode types

var codes = require("rescode");

function( res, req ) 
{
	codes.loadModules(["ean13", "ean8"]);
	
	var data8 = codes.create("ean8","12345678");
    
    res.setHeader("Content-Type","image/png");
	res.end( data8 );
    
    OR
    
    res.end("<html><img src='data:image/png;base64,"+data8.toString("base64")+"' /></html>");
}

Example loading specific barcode types and setting specific options

var codes = require("rescode");

function( res, req ) 
{
	codes.loadModules(["ean13"], { "includetext":false, "guardwhitespace":false, "inkspread":0, scaleX:2, textyoffset:-15 });
	codes.loadModules(["ean8"], { "includetext":false, "guardwhitespace":false, "inkspread":0, scaleX:3, textyoffset:-15 });
	
	var data8 = codes.create("ean8","12345678");
    
    res.setHeader("Content-Type","image/png");
	res.end( data8 );
    
    OR
    
    res.end("<html><img src='data:image/png;base64,"+data8.toString("base64")+"' /></html>");
}	
	

rescode.loadModules(["ean13", "ean8"], { "includetext":false, "guardwhitespace":false, "inkspread":0, scaleX:2, textyoffset:-15 });

Configure

Choose in lib/codes.js the Adatper PNG ( binary png ) or Canvas ( dataURL (smaller size), but canvas has to be installed )
Choose in lib/bwipp/index.js the Code Generators and Defaults