Skip to content

barcode-bakery/barcode-nodejs-1d

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

5 Commits
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

Barcode Bakery is a library written in Node.JS, .NET Standard and PHP which allows you to generate barcodes on the fly on your server for displaying or saving.

The library has minimal dependencies in each language in order to be supported on a wide variety of web servers.

The library is available for free for non-commercial use; however you must purchase a license if you plan to use it in a commercial environment.

Installation

There are two ways to install our library:

  • Run the following command:
$ npm install @barcode-bakery/barcode-1d @barcode-bakery/barcode-common

Requirements

Example usages

For a full example of how to use each symbology type, visit our API page.

You can also visit the GitHub example page.

Displaying a Code 128 on the screen

import { createServer } from 'http';
import { parse } from 'querystring';
import { BCGColor, BCGDrawing, BCGFont } from '@barcode-bakery/barcode-common';
import { BCGcode128 } from '@barcode-bakery/barcode-1d';

const defaultText = 'a123';

let font = new BCGFont('Arial', 18);
let colorBlack = new BCGColor(0, 0, 0);
let colorWhite = new BCGColor(255, 255, 255);

let getDrawing = function (text) {
    let drawException = null,
        barcode = null;
    try {
        // Barcode Part
        let code = new BCGcode128();
        code.setScale(2); // Resolution
        code.setThickness(30); // Thickness
        code.setBackgroundColor(colorWhite); // Color of spaces
        code.setForegroundColor(colorBlack); // Color of bars
        code.setFont(font); // Font (or 0)
        code.setStart(null);
        code.setTilde(true);
        code.parse(text); // Text
        barcode = code;
    } catch (exception) {
        drawException = exception;
    }

    let drawing = new BCGDrawing(barcode, colorWhite);
    if (drawException) {
        drawing.drawException(drawException);
    }

    return drawing;
};

createServer(function (request, response) {
    // Don't forget to sanitize user inputs.
    let drawing = getDrawing(parse(request.url).query?.toString() || defaultText);
    drawing.toBuffer(BCGDrawing.ImageFormat.Png, function (err, buffer) {
        response.writeHead(200, { 'Content-Type': 'image/png' });
        response.end(buffer);
    });
}).listen(8124);
console.log('Server running at http://127.0.0.1:8124/');

Saving the image to a file

Replace the last lines of the previous code with the following:

let drawing = new BCGDrawing(code, colorWhite);
drawing.save('image.png', BCGDrawing.ImageFormat.Png, function() {
    console.log('Done.');
});

This will generate the following:

Sync methods

Both save and toBuffer have counterparts acting synchronously: saveSync and toBufferSync.

Tests

Simply type npm test to run the tests.

Supported types

Other libraries available for purchase

About

No description, website, or topics provided.

Resources

License

Stars

Watchers

Forks

Packages