s3 put and get functions

s3.js

/**************************************
* File Put
**************************************/
const uuidV1 = require('uuid/v1');
const multer = require('multer');
const upload = multer({ storage: multer.memoryStorage(), limits: { fileSize: 10*1024*1024 } }); //10mb limit
const fileUpload = (req, res) => {
  //get args
  const { id } = req.body;
  const file = req.file;
  const fn = file.originalname;
  const Key = id + '/' + fn + '_uuid_' + uuidV1();
  //handle local request
  if (process.env.LOCAL) {
    res.send({ res: 'Local Success. Key: ' + Key });
    return;
  }
  const params = {
    Key,
    Bucket: bucketName,
    Body: file.buffer,
  };
  s3.putObject(params, (err, data) => {
    if (err) {
      winston.log('error', err, err.stack);
      res.send({ res: 'Error Uploading Data: ' + JSON.stringify(err) + '\n' + JSON.stringify(err.stack) });
    } else {
      winston.log('info', 'Successfully uploaded with Key: ', Key);
      res.send(Key);
    }
  });
};
/**************************************
* File Get
**************************************/
const fileGet = (req, res) => {
  const { Key } = req.body;
  //handle local
  if (process.env.LOCAL) {
    res.send({ res: 'Local Success. Key: ' + Key });
    return;
  }
  const params = {
    Key,
    Bucket: bucketName,
  };
  const fileStream = s3.getObject(params, (err, data) => {
    if (err) {
      winston.log('error', err, err.stack);
      res.send({ res: 'Error Getting Data: ' + JSON.stringify(err) + '\n' + JSON.stringify(err.stack) });
    } else {
      winston.log('info', 'Successfully got file data', data);
      res.send(data.Body);
    }
  }).createReadStream();
  fileStream.pipe(res);
};