npm install --save docxtemplater pizzip
First, download this tag-example.docx file and put it in the same folder than your JS file.
Then, copy the following code :
const PizZip = require("pizzip");
const Docxtemplater = require("docxtemplater");
const fs = require("fs");
const path = require("path");
// Load the docx file as binary content
const content = fs.readFileSync(
path.resolve(__dirname, "input.docx"),
"binary"
);
const zip = new PizZip(content);
const doc = new Docxtemplater(zip, {
paragraphLoop: true,
linebreaks: true,
});
// Render the document (Replace {first_name} by John, {last_name} by Doe, ...)
doc.render({
first_name: "John",
last_name: "Doe",
phone: "0652455478",
description: "New Website",
});
const buf = doc.getZip().generate({
type: "nodebuffer",
// compression: DEFLATE adds a compression step.
// For a 50MB output document, expect 500ms additional CPU time
compression: "DEFLATE",
});
// buf is a nodejs Buffer, you can either write it to a
// file or res.send it with express for example.
fs.writeFileSync(path.resolve(__dirname, "output.docx"), buf);
After running this code, you will get a file in the same folder called "output.docx" where the {first_name} was replaced by "John", the {last_name} tag replaced by "Doe", …