JSExample.js

"use strict";

async function main(){

  const AWS = require('aws-sdk'),
        fs = require('fs'),
        util = require('util'),
        exec = util.promisify(require('child_process').exec),
        s3 = new AWS.S3()
        

  AWS.config.update({
    bucketName: 'bucket_name',
    accessKeyId: 'dasdsaads',
    secretAccessKey: 'dsadasdasdsa',
    region: 'us-east-1',
  });

  const upload_file = new Promise(async (resolve, reject) => { 
    fs.readFile('/Users/henriquebreim/Desktop/test.png', async function (err, data) {
      if (err) { throw err; }
      let base64data = new Buffer(data, 'binary');
      
      await s3.putObject({
        Bucket: 'bucket-converter-breim2',
        Key: 'test.png',
        Body: base64data,
      },function (resp) {
        console.log(arguments);
        console.log('Successfully uploaded package.');
      });

    })
  });

  upload_file.then((result)=> {
    console.log(result);
  })


  const download_file = new Promise(async (resolve, reject) => {
    const file = await s3.getObject({
      Bucket: 'bucket-converter-breim2',
      Key: 'test.png'
    })
   
    const params = { Bucket: 'bucket-converter-breim2', Key: 'test.png' }

    s3.getObject(params, function(err, data) {
      if (err) console.log(err, err.stack); // an error occurred
      else     resolve(data.Body);           // successful response
    });
  })



  download_file.then((result) => {
    fs.writeFile('henrique.png', result, (err) => {})
    // console.log(result);
  })


  const dir_name = 'zL';

  const { stdout, stderr } = await exec(`mkdir ${dir_name}`);
  console.log('stdout:', stdout);
  console.log('stderr:', stderr);
}


main();