Recursively traverse through the directory and list out all the files asynchronously

getAllFilesRecursively.js

"use strict";

const { readdir } = require("fs");
const { promisify } = require("util");

const readdirP = promisify(readdir);


async function getAllFilesRecursively(folder) {
  return await (
    await readdirP(folder, { withFileTypes: true })
  ).reduce(async (acc, curr) => {
    if (curr.isDirectory()) {
      return (await acc).concat(
        await getAllCsvGzipFilesRecursively(`${folder}/${curr.name}`)
      );
    } else {
      (await acc).push(`${folder}/${curr.name}`);
      return acc;
    }
  }, Promise.resolve([]));
}