Cloud API - PDF To Image API - JavaScript - Convert PDF To JPEG From URL (Node.js) - Async API - ByteScout

Cloud API – PDF To Image API – JavaScript – Convert PDF To JPEG From URL (Node.js) – Async API

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Cloud API – PDF To Image API – JavaScript – Convert PDF To JPEG From URL (Node.js) – Async API

ConvertPdfToJpegFromUrl.js

[javascript]
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”);

// The authentication key (API Key).
// Get your own by registering at https://app.pdf.co/documentation/api
const API_KEY = “***********************************”;

// Source PDF file
const SourceFileUrl = “https://s3-us-west-2.amazonaws.com/bytescout-com/files/demo-files/cloud-api/pdf-to-image/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 = “”;

// Prepare request to `PDF To JPEG` API endpoint
var queryPath = `/v1/pdf/convert/to/jpg?password=${Password}&pages=${Pages}&url=${SourceFileUrl}&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) {
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);
if (data.Status == “InProgress”) {
// Check again after 2 seconds
setTimeout(function(){checkIfJobIsCompleted(jobId, resultFileUrlJson)} , 2000);
}
else if (data.Status == “Finished”) {

request({ method: ‘GET’, uri: resultFileUrlJson, gzip: true },
function (error, response, body) {

//* workaround for issue with non supoprted firstchar code
var firstCharCode = body.charCodeAt(0);
if (firstCharCode == 65279) {
body = body.substring(1);
}

// Parse JSON response
let respJsonFileArray = JSON.parse(body);
let page = 1;

respJsonFileArray.forEach((url) => {
var localFileName = `./page${page}.jpg`;
var file = fs.createWriteStream(localFileName);
https.get(url, (response2) => {
response2.pipe(file)
.on(“close”, () => {
console.log(`Generated JPEG file saved as “${localFileName} file.”`);
});
});
page++;
}, this);

});
}
else {
console.log(`Operation ended with status: “${data.Status}”.`);
}
})
});
}

[/javascript]


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