ByteScout Cloud API Server - PDF Text Search API - JavaScript - PDF Text Search from URL (Node js) - Async API - ByteScout

ByteScout Cloud API Server – PDF Text Search API – JavaScript – PDF Text Search from URL (Node js) – Async API

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How to PDF text search API in JavaScript using ByteScout Cloud API Server

How to write a robust code in JavaScript to PDF text search API with this step-by-step tutorial

Source code documentation samples give simple and easy method to install a needed feature into your application. ByteScout Cloud API Server can PDF text search API. It can be applied from JavaScript. ByteScout Cloud API Server is API server that is ready to use and can be installed and deployed in less than 30 minutes on your own Windows server or server in a cloud. It can save data and files on your local server-based file storage or in Amazon AWS S3 storage. Data is processed solely on the API server and is powered by ByteScout engine, no cloud services or Internet connection is required for data processing..

Want to quickly learn? This fast application programming interfaces of ByteScout Cloud API Server for JavaScript plus the guidelines and the code below will help you quickly learn how to PDF text search API. Just copy and paste the code into your JavaScript application’s code and follow the instructions. If you want to use these JavaScript sample examples in one or many applications then they can be used easily.

You can download free trial version of ByteScout Cloud API Server from our website to see and try many others source code samples for JavaScript.

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PdfTextSearchFromUrlAsyncApi.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. var https = require("https"); // Use "npm install request" command to install. var request = require("request"); // Direct URL of source PDF file. const SourceFileUrl = "https://bytescout-com.s3.amazonaws.com/files/demo-files/cloud-api/pdf-to-text/sample.pdf"; // Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'. const Pages = ""; // PDF document password. Leave empty for unprotected documents. const Password = ""; // Search string. const SearchString = '[4-9][0-9].[0-9][0-9]'; // Regular expression to find numbers in format dd.dd and between 40.00 to 99.99 // Enable regular expressions (Regex) const RegexSearch = true; // Prepare URL for PDF text search API call. var queryPath = `/pdf/find?password=${Password}&pages=${Pages}&url=${SourceFileUrl}&searchString=${SearchString}&regexSearch=${RegexSearch}&async=True`; var reqOptions = { host: "localhost", path: encodeURI(queryPath) }; // Send request https.get(reqOptions, (response) => { response.on("data", (d) => { // Parse JSON response var data = JSON.parse(d); if (data.error == false) { console.log(`Job #${data.jobId} has been created!`); checkIfJobIsCompleted(data.jobId, data.url); } else { // Service reported error console.log(data.message); } }); }).on("error", (e) => { // Request error console.log(e); }); function checkIfJobIsCompleted(jobId, resultFileUrl) { let queryPath = `/job/check?jobid=${jobId}`; let reqOptions = { host: "localhost", path: encodeURI(queryPath), method: "GET" }; https.get(reqOptions, (response) => { response.on("data", (d) => { response.setEncoding("utf8"); // Parse JSON response let data = JSON.parse(d); console.log(`Checking Job #${jobId}, Status: ${data.status}, Time: ${new Date().toLocaleString()}`); if (data.status == "working") { // Check again after 3 seconds setTimeout(function () { checkIfJobIsCompleted(jobId, resultFileUrl); }, 3000); } else if (data.status == "success") { request({ method: 'GET', uri: resultFileUrl, gzip: true }, function (error, response, body) { // Parse JSON response let respJsonFileArray = JSON.parse(body); respJsonFileArray.forEach((element) => { console.log("Found text " + element["text"] + " at coordinates " + element["left"] + ", " + element["top"]); }, this); }); } else { console.log(`Operation ended with status: "${data.status}".`); } }) }); }

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