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

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

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

This code in JavaScript shows how to PDF text search API with this how to tutorial

Quickly learn how to PDF text search API in JavaScript with this sample source code. 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 SDK samples given below describe how to quickly make your application do PDF text search API in JavaScript with the help of ByteScout Cloud API Server. Simply copy and paste in your JavaScript project or application you and then run your app! Use of ByteScout Cloud API Server in JavaScript is also described in the documentation included along with the product.

ByteScout Cloud API Server free trial version is available on our website. JavaScript and other programming languages are supported.

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PDFTextSearchFromUploadedFileAsyncAPI.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=${path.basename(SourceFile)}`; let reqOptions = { host: "localhost", path: encodeURI(queryPath) }; // Send request https.get(reqOptions, (response) => { response.on("data", (d) => { let data = JSON.parse(d); if (data.error == false) { // Return presigned url we received resolve([data.presignedUrl, data.url]); } else { // Service reported error console.log("getPresignedUrl(): " + data.message); } }); }) .on("error", (e) => { // Request error console.log("getPresignedUrl(): " + e); }); }); } function uploadFile(localFile, uploadUrl) { return new Promise(resolve => { fs.readFile(SourceFile, (err, data) => { request({ method: "PUT", url: uploadUrl, body: data, headers: { "Content-Type": "application/octet-stream" } }, (err, res, body) => { if (!err) { resolve(); } else { console.log("uploadFile() request error: " + e); } }); }); }); } function pdfTextSearch(uploadedFileUrl) { // Prepare URL for PDF text search API call. var query = `https://localhost/pdf/find`; let reqOptions = { uri: query, formData: { password: Password, pages: Pages, url: uploadedFileUrl, searchString: SearchString, regexSearch: RegexSearch, async: 'True' } }; // Send request request.get(reqOptions, function (error, response, body) { if (error) { return console.error("Error: ", error); } // Parse JSON response let data = JSON.parse(body); checkIfJobIsCompleted(data.jobId, data.url); }); } function checkIfJobIsCompleted(jobId, resultFileUrl) { let queryPath = `/job/check?jobid=${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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ON-PREMISE OFFLINE SDK

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

Explore ByteScout Cloud API Server Documentation

Explore Samples

Sign Up for ByteScout Cloud API Server Online Training

ON-DEMAND REST WEB API

Get Your API Key

Explore Web API Docs

Explore Web API Samples

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