const docx = require('docx@4.0.0');
const express = require("@runkit/runkit/express-endpoint/1.0.0");
const app = express(exports);
const { Document, Packer } = docx;
app.get("/", async (req, res) => {
const doc = new docx.Document();
const table = doc.createTable(4, 4);
table.getCell(2, 2).addContent(new Paragraph('Hello'));
const packer = new Packer();
const b64string = await packer.toBase64String(doc);
res.setHeader('Content-Disposition', 'attachment; filename=My Document.docx');
res.send(Buffer.from(b64string, 'base64'));
});