check-base-encoding

npm module to check and verify base encoding of a particular string. Specifications for base64, base64url, base32, base32hex, and hex encodings have been taken from RFC 4648.

Installation

npm install --save check-base-encoding

Or on the client side,

<script src="https://cdn.rawgit.com/anaskhan96/check-base-encoding/master/browser/check-base-min.js"></script>

Usage

var checkBase = require('check-base-encoding');
 
// Following examples yield true as the output
console.log(checkBase.isBase64('SGV5IG1hbiB3aGF0J3MgdQ=='));
 
console.log(checkBase.isBase64URL('WW8geW8gY2hlY2s='));
 
console.log(checkBase.isBase58('brXijP'));
 
console.log(checkBase.isBase32('JBSXSIDNMFXCYIDX'));
 
console.log(checkBase.isBase32Hex('ETK68TBHCHI68==='));
 
console.log(checkBase.isHex('736E646964'));
 
// If your string is not padded (in the case of first four functions),
// you need to pass a second argument `true` which enforces no padding
 
// Following is the example of a VAPID key
console.log(checkBase.isBase64URL('InhF137RBd4GPsDxlIoO6P_aCRaO9WspxraTJwiqjxY', true));
// --> true