kevva
is-gzip 
Check if a Buffer/Uint8Array is a GZIP file
Install
$ npm install is-gzipUsage
const fs = require('fs');
const isGzip = require('is-gzip');
isGzip(fs.readFileSync('foo.tar.gz'));
//=> trueLicense
MIT © Kevin Mårtensson
Check if a Buffer/Uint8Array is a GZIP file
Check if a Buffer/Uint8Array is a GZIP file
$ npm install is-gzipconst fs = require('fs');
const isGzip = require('is-gzip');
isGzip(fs.readFileSync('foo.tar.gz'));
//=> trueMIT © Kevin Mårtensson