js untar in memory

untar.js

const tar = require("tar");

exports.unTar = (tarballStream) => {
    const results = {};
    return new Promise((resolve, reject) => {
        const parser = tarballStream.pipe(new tar.Parse());
        parser.on(
            "entry", async (entry) => {
                const chunks = []
                for await (let chunk of entry) {
                    chunks.push(chunk);
                }
                results[entry.path] = Buffer.concat(chunks);
                console.log(entry.path);
            }
        ).once("end", () => {
            resolve(results);
        }).on("error", (err) => {
            reject(err);
        });
    });
}