Detect the archive type of a Buffer/Uint8Array
$ npm install --save archive-type
const archiveType = require('archive-type');
const readChunk = require('read-chunk');
const buffer = readChunk.sync('unicorn.zip', 0, 262);
archiveType(buffer);
//=> {ext: 'zip', mime: 'application/zip'}
Returns an Object with:
ext - One of the supported file typesmime - The MIME typeOr null when no match.
Type: Buffer Uint8Array
It only needs the first 262 bytes.
7zbz2gzrartarzipxzgzMIT © Kevin Mårtensson