How to bulk upload files to S3 using node script

// uploadTos3.jsconst fs = require('fs');const readDir = require('recursive-readdir');const path = require('path');const AWS = require('aws-sdk');const mime = require('mime-types');AWS.config.update({  region: 'ap-south-1',  accessKeyId: process.env.AWS_ACCESS_KEY_ID,  secretAccessKey: process.env.SECRET_ACCESS_KEY,  maxRetries: 3});const directoryPath = path.resolve(__dirname, './images');const getDirectoryFilesRecursive = (dir, ignores = []) => {  return new Promise((resolve, reject) => {    readDir(dir, ignores, (err, files) => (err ? reject(err) : resolve(files)));  });};const generateFileKey = fileName => {  const S3objectPath = fileName.split('/images/')[1];  return `website-assets/${S3objectPath}`;};const s3 = new AWS.S3();const uploadToS3 = async () => {  try {    const fileArray = await getDirectoryFilesRecursive(directoryPath, [      'BUILD_ID'    ]);    fileArray.map(file => {      // Configuring parameters for S3 Object      const S3params = {        Bucket: 'public-read-bucket',        Body: fs.createReadStream(file),        Key: generateFileKey(file),        ACL: 'public-read',        ContentType: mime.lookup(file),        ContentEncoding: 'utf-8',        CacheControl: 'immutable,max-age=31536000,public'      };      s3.upload(S3params, function(err, data) {        if (err) {          // Set the exit code while letting          // the process exit gracefully.          console.error(err);          process.exitCode = 1;        } else {          console.log(`Assets uploaded to S3: `, data);        }      });    });  } catch (error) {    console.error(error);  }};uploadToS3();