wbo1/server/fs_promises.js

const fs = require('fs');

if (typeof fs.promises === "undefined") {
    console.warn("Using an old node version without fs.promises");

    const util = require("util");
    fs.promises = {};
    Object.entries(fs)
        .filter(([_, v]) => typeof v === 'function')
        .forEach(([k, v]) => fs.promises[k] = util.promisify(v))
}

module.exports = fs;