gzip dropped file

index.js

var dragDrop = require('drag-drop')
var createReadStream = require('filereader-stream')
var zlib = require('zlib')

dragDrop('#dropTarget', function (files, pos) {
  createReadStream(files[0])
  	.pipe(zlib.createGzip())
    .on('data', function (data) {
      console.log(data)
    })
})

package.json

{
  "name": "gzip-dropped-file",
  "version": "1.0.0",
  "dependencies": {
    "drag-drop": "^2.1.0",
    "filereader-stream": "^0.2.0"
  }
}

page-body.html

<style>
  #dropTarget {
    background: #f7f7f7;
    margin: 20px;
    padding: 24% 0;
    text-align: center;
    text-transform: uppercase;
  }
</style>

<div id="dropTarget">Drop CSV</div>