How to generate PDF invoice from HTML template (node for HTML to PDF API in JavaScript and PDF.co Web API

PDF.co Web API is the Rest API that provides set of data extraction functions, tools for documents manipulation, splitting and merging of pdf files. Includes built-in OCR, images recognition, can generate and read barcodes from images, scans and pdf.

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app.js

      
var https = require("https"); var path = require("path"); var fs = require("fs"); // The authentication key (API Key). // Get your own by registering at https://app.pdf.co/documentation/api const API_KEY = "***********************************"; // HTML template const template = "./invoice_template.html"; // Data to fill the template const templateData = "./invoice_data.json"; // Destination PDF file name const DestinationFile = "./result.pdf"; // Prepare request to `HTML To PDF` API endpoint var queryPath = `/v1/pdf/convert/from/html?name=${path.basename(DestinationFile)}`; var reqOptions = { host: "api.pdf.co", path: encodeURI(queryPath), method: "POST", headers: { "x-api-key": API_KEY, "Content-Type": "application/json" } }; var requestBody = JSON.stringify({ "html": fs.readFileSync(template, "utf8"), "templateData": fs.readFileSync(templateData, "utf8") }); // Send request var postRequest = https.request(reqOptions, (response) => { response.on("data", (d) => { // Parse JSON response var data = JSON.parse(d); if (data.error == false) { // Download PDF file var file = fs.createWriteStream(DestinationFile); https.get(data.url, (response2) => { response2.pipe(file) .on("close", () => { console.log(`Generated PDF file saved as "${DestinationFile}" file.`); }); }); } else { // Service reported error console.log(data.message); } }); }).on("error", (e) => { // Request error console.log(e); }); // Write request data postRequest.write(requestBody); postRequest.end();

invoice_data.json

      
{ "number": "1234567", "date": "April 30, 2016", "from": "Acme Inc., City, Street 3rd , +1 888 123-456, support@example.com", "to": "Food Delivery Inc., New York, Some Street, 42", "lines": [{ "title": "Setting up new web-site", "quantity": 3, "price": 50 }, { "title": "Configuring mail server and mailboxes", "quantity": 5, "price": 50 }] }

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" } }

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