ByteScout Cloud API Server – Barcode Reader API – JavaScript – Read Barcode From File (Node.js)

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ByteScout Cloud API Server – Barcode Reader API – JavaScript – Read Barcode From File (Node.js)

printable version:
ByteScout-Cloud-API-Server-JavaScript-Read-Barcode-From-File-(Node-js).pdf

How to read barcode from file (node for barcode reader API in JavaScript using ByteScout Cloud API Server

How to read barcode from file (node for barcode reader API in JavaScript: Step By Step Instructions

Every ByteScout tool includes sample JavaScript source codes that you can find here or in the folder with installed ByteScout product. ByteScout Cloud API Server was designed to assist barcode reader API in JavaScript. ByteScout Cloud API Server is the ready to deploy Web API Server that can be deployed in less than thirty minutes into your own in-house Windows server (no Internet connnection is required to process data!) or into private cloud server. Can store data on in-house local server based storage or in Amazon AWS S3 bucket. Processing data solely on the server using built-in ByteScout powered engine, no cloud services are used to process your data!.

Want to learn quickly? These fast application programming interfaces of ByteScout Cloud API Server for JavaScript plus the instruction and the code below will help to learn how to read barcode from file (node. Open your JavaScript project and simply copy & paste the code and then run your app! Writing JavaScript application mostly includes various stages of the software development so even if the functionality works please check it with your data and the production environment.

Trial version of ByteScout is available for free download from our website. This and other source code samples for JavaScript and other programming languages are available.

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app.js

      // Please NOTE: In this sample we're assuming Cloud Api Server is hosted at "https://localhost". 
// If it's not then please replace this with with your hosting url.

/*jshint esversion: 6 */
var fs = require("fs");

// `request` module is required for file upload.
// Use "npm install request" command to install.
var request = require("request");

// Source file name
const SourceFile = "./sample.pdf";
// Comma-separated list of barcode types to search. 
// barcode types
const BarcodeTypes = "Code128,Code39,Interleaved2of5,EAN13";
// Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.
const Pages = "";

// Prepare request to `Barcode Reader` API endpoint
var query = `https://localhost/barcode/read/from/url`;
let reqOptions = {
    uri: query,
    formData: {
        types: BarcodeTypes,
        pages: Pages,
        file: fs.createReadStream(SourceFile)
    }
};

// Send request
request.post(reqOptions, function (error, response, body) {
    if (error) {
        return console.error("Error: ", error);
    }

    // Parse JSON response
    let data = JSON.parse(body);
    data.barcodes.forEach((element) => {
        console.log("Found barcode:");
        console.log("  Type: " + element["TypeName"]);
        console.log("  Value: " + element["Value"]);
        console.log("  Document Page Index: " + element["Page"]);
        console.log("  Rectangle: " + element["Rect"]);
        console.log("  Confidence: " + element["Confidence"]);
        console.log();
    }, this);
});

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package.json

      {
  "name": "test",
  "version": "1.0.0",
  "description": "PDF.co",
  "main": "app.js",
  "scripts": {
  },
  "keywords": [
    "pdf.co",
    "web",
    "api",
    "bytescout",
    "api"
  ],
  "author": "ByteScout & PDF.co",
  "license": "ISC",
  "dependencies": {
    "request": "^2.88.2"
  }
}