import { CreateDocx } from "build";
import * as fs from "fs";

const docxTemplate = fs.readFileSync("template.docx").buffer;

const docx = new CreateDocx();
// load the template
docx.openTemplate(docxTemplate).then(docx => {
    // variables to be replaced
    const variablesDocument = new Map();
    variablesDocument.set("textfield_1", "first");
    variablesDocument.set("textfield_2", "second");
    variablesDocument.set("sdt_1", "third");
    variablesDocument.set("sdt_2", "fourth");

    // replace variables
    docx.replaceVariableInputField(variablesDocument);

    // save the DOCX
    docx.save().then(contents => {
        fs.writeFileSync(
            "replaceVariableInputField_1.docx",
            Buffer.from(contents)
        );
    });
});