barcode reader API in JavaScript and PDF.co Web API

PDF.co Web API: the flexible Web API that includes full set of functions from e-signature requests to data extraction, OCR, images recognition, pdf splitting and pdf splitting. Can also generate barcodes and read barcodes from images, scans and pdf.

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app.js
      
var https = require("https"); // Use "npm install request" command to install. var request = require("request"); // The authentication key (API Key). // Get your own by registering at https://app.pdf.co/documentation/api const API_KEY = "***********************************"; // Direct URL of source file to search barcodes in. const SourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/barcode-reader/sample.pdf"; // Comma-separated list of barcode types to search. // See valid barcode types in the documentation https://app.pdf.co/documentation/api/1.0/barcode/read_from_url.html 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 = ""; /* Some of advanced options available through profiles: (JSON can be single/double-quoted and contain comments.) { "profiles": [ { "profile1": { "ScanArea": "WholePage", // Values: "TopLeftQuarter", "TopRightQuarter", "BottomRightQuarter", "BottomLeftQuarter", "TopHalf", "BottomHalf", "WholePage". "RequireQuietZones": true, // Whether the quite zone is obligatory for 1D barcodes. Values: true / false "MaxNumberOfBarcodesPerPage": 0, // 0 - unlimited. "MaxNumberOfBarcodesPerDocument": 0, // 0 - unlimited. "ScanStep": 1, // Scan interval for linear (1-dimensional) barcodes. "MinimalDataLength": 0, // Minimal acceptable length of decoded data. } } ] } */ // Sample profile that sets advanced conversion options // Advanced options are properties of Reader class from Bytescout BarCodeReader used in the back-end: // https://cdn.bytescout.com/help/BytescoutBarCodeReaderSDK/html/ba101d21-3db7-eb54-d112-39cadc023d02.htm const Profiles = '{ "profiles": [ { "profile1": { "FastMode": true } } ] }'; // Prepare request to `Barcode Reader` API endpoint var queryPath = `/v1/barcode/read/from/url?types=${BarcodeTypes}&pages=${Pages}&url=${SourceFileUrl}&profiles=${Profiles}&async=True`; var reqOptions = { host: "api.pdf.co", path: encodeURI(queryPath), headers: { "x-api-key": API_KEY } }; // Send request https.get(reqOptions, (response) => { response.on("data", (d) => { // Parse JSON response var data = JSON.parse(d); if (data.error == false) { console.log(`Job #${data.jobId} has been created!`); checkIfJobIsCompleted(data.jobId, data.url); } else { // Service reported error console.log(data.message); } }); }).on("error", (e) => { // Request error console.error(e); }); function checkIfJobIsCompleted(jobId, resultFileUrlJson) { let queryPath = `/v1/job/check?jobid=${jobId}`; let reqOptions = { host: "api.pdf.co", path: encodeURI(queryPath), method: "GET", headers: { "x-api-key": API_KEY } }; https.get(reqOptions, (response) => { response.on("data", (d) => { response.setEncoding("utf8"); // Parse JSON response let data = JSON.parse(d); console.log(`Checking Job #${jobId}, Status: ${data.status}, Time: ${new Date().toLocaleString()}`); if (data.status == "working") { // Check again after 3 seconds setTimeout(function () { checkIfJobIsCompleted(jobId, resultFileUrlJson); }, 3000); } else if (data.status == "success") { request({ method: 'GET', uri: resultFileUrlJson, gzip: true }, function (error, response, body) { // Parse JSON response let respJsonFileArray = JSON.parse(body); respJsonFileArray.forEach((element) => { console.log("Found barcode:"); console.log(" Type: " + element["TypeName"]); console.log(" Value: " + element["Value"]); console.log(" Document Page Index: " + element["Page"]); console.log(" Rectangle: " + element["Rect"]); console.log(" Confidence: " + element["Confidence"]); console.log(); }, this); }); } else { console.log(`Operation ended with status: "${data.status}".`); } }) }); }

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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" } }

ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit PDF.co Web API Home Page

Explore PDF.co Web API Documentation

Explore Samples

Sign Up for PDF.co Web API Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

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ON-PREMISE OFFLINE SDK

60 Day Free Trial or Visit PDF.co Web API Home Page

Explore PDF.co Web API Documentation

Explore Samples

Sign Up for PDF.co Web API Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

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