is-deflate

Detect if a Buffer/Uint8Array is compressed using deflate

Usage no npm install needed!

<script type="module">
  import isDeflate from 'https://cdn.skypack.dev/is-deflate';
</script>

README

is-deflate

Check if a given Buffer or Uint8Array is deflate compressed.

Build status js-standard-style

Installation

npm install is-deflate --save

Usage

var fs = require('fs')
var zlib = require('zlib')
var isDeflate = require('is-deflate')

var buf = fs.readFileSync('my-file')

if (isDeflate(buf)) {
  zlib.inflate(buf, function (err, data) {
    if (err) throw err
    console.log(data)
  })
}

License

MIT