const dbr = require('barcode4nodejs');
dbr.initLicense("LICENSE-KEY")
dbr.decodeFileAsync("YOUR IMAGE FILE", dbr.formats.OneD | dbr.formats.PDF417 | dbr.formats.QRCode | dbr.formats.DataMatrix | dbr.formats.Aztec, function(err, msg){
  console.log(msg)
}, "");

How to Build the Module for Windows, Linux, macOS and Raspberry Pi

Replace the library files in platforms/ with yours.

Build the Node.js extension:

node-gyp configure
node-gyp build

For Raspberry Pi

Download and extract the Raspberry Pi package, and then copy the libDynamsoftBarcodeReader.so file to the platforms/linux folder.

For Visual Studio 2019 Community

node-gyp configure --msbuild_path="C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe" --msvs_version=2017
node-gyp build

Examples

examples/command-line
```
node test.js -f test.tif
```
examples/web
```
npm install
node server.js
```
Open http://localhost:2018/index.htm in web browsers.

examples/desktop-electron

cd src
node-gyp rebuild --target=0.36.7 --arch=x64 --dist-url=https://atom.io/download/atom-shell

cd examples/desktop-electron
npm install
npm start

examples/linux-camera

npm install v4l2camera
node camera_barcode_reader.js

examples/RESTful-service
```
npm install restify
node server.js
```
Open https://< ip >:2018 to scan barcodes in web browsers.

APIs

initLicense(license-key)
decodeFileAsync(fileName, barcodeTypes, callback, template)
decodeFileStreamAsync(fileStream, fileSize, barcodeTypes, callback, template)
decodeBase64Async(base64, barcodeTypes, callback, template)
decodeYUYVAsync(buffer, width, height, barcodeTypes, callback, template)
decodeBufferAsync(buffer, width, height, stride, barcodeTypes, callback, template, maxBufferLength)

Template is an advanced usage. By default, you just need to set template "".

barcodeTypes

barcodeTypes = dbr.formats.OneD | dbr.formats.PDF417 | dbr.formats.QRCode | dbr.formats.DataMatrix | dbr.formats.Aztec

template

let params = {
  "ImageParameter": {
    "Name": "Custom_143301_827",
    "BarcodeFormatIds": [
      "BF_ALL"
    ],
    "DeblurLevel": 9,
    "ExpectedBarcodesCount": 100,
    "ScaleDownThreshold": 1200000,
    "Timeout": 100000
  },
  "Version": "3.0"
};
template = JSON.stringify(params);

Keywords

FAQs

What is barcode4nodejs?

Is barcode4nodejs popular?

Is barcode4nodejs well maintained?

Package last updated on 16 Apr 2021

Did you know?

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install