ByteScout Cloud API Server - PDF Text Search API - JavaScript - PDF Text Search from Uploaded File (Node js) - ByteScout

ByteScout Cloud API Server – PDF Text Search API – JavaScript – PDF Text Search from Uploaded File (Node js)

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

If you want to learn more then this tutorial will show how to PDF text search API in JavaScript

The sample source codes on this page shows how to PDF text search API in 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. and you can use it to PDF text search API with JavaScript.

The following code snippet for ByteScout Cloud API Server works best when you need to quickly PDF text search API in your JavaScript application. This JavaScript sample code is all you need for your app. Just copy and paste the code, add references (if needs to) and you are all set! Further improvement of the code will make it more robust.

Trial version of ByteScout Cloud API Server is available for free. Source code samples are included to help you with your JavaScript app.

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PDFTextSearchFromUploadedFile.js
      
/*jshint esversion: 6 */ // 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"); var path = require("path"); 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 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'; // 1. RETRIEVE THE PRESIGNED URL TO UPLOAD THE FILE. getPresignedUrl(SourceFile) .then(([uploadUrl, uploadedFileUrl]) => { // 2. UPLOAD THE FILE TO CLOUD. uploadFile(SourceFile, uploadUrl) .then(() => { // 3. PDF Text Search FROM UPLOADED FILE pdfTextSearch(uploadedFileUrl); }) .catch(e => { console.log(e); }); }) .catch(e => { console.log(e); }); function getPresignedUrl(localFile) { return new Promise(resolve => { // Prepare request to `Get Presigned URL` API endpoint let queryPath = `/file/upload/get-presigned-url?contenttype=application/octet-stream&name=${path.basename(SourceFile)}`; let reqOptions = { host: "localhost", path: encodeURI(queryPath) }; // Send request https.get(reqOptions, (response) => { response.on("data", (d) => { let data = JSON.parse(d); if (data.error == false) { // Return presigned url we received resolve([data.presignedUrl, data.url]); } else { // Service reported error console.log("getPresignedUrl(): " + data.message); } }); }) .on("error", (e) => { // Request error console.log("getPresignedUrl(): " + e); }); }); } function uploadFile(localFile, uploadUrl) { return new Promise(resolve => { fs.readFile(SourceFile, (err, data) => { request({ method: "PUT", url: uploadUrl, body: data, headers: { "Content-Type": "application/octet-stream" } }, (err, res, body) => { if (!err) { resolve(); } else { console.log("uploadFile() request error: " + e); } }); }); }); } function pdfTextSearch(uploadedFileUrl) { // Prepare URL for PDF text search API call. var query = `https://localhost/pdf/find`; let reqOptions = { uri: query, formData: { password: Password, pages: Pages, url: uploadedFileUrl, searchString: SearchString, regexSearch: RegexSearch } }; // Send request request.get(reqOptions, function (error, response, body) { if (error) { return console.error("Error: ", error); } // Parse JSON response let data = JSON.parse(body); for (let index = 0; index < data.body.length; index++) { const element = data.body[index]; console.log("Found text " + element["text"] + " at coordinates " + element["left"] + ", " + element["top"]); } }); }

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60 Day Free Trial or Visit ByteScout Cloud API Server Home Page

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ON-DEMAND REST WEB API

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Explore Web API Docs

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