react-native-jsi-base-coder

Base64/32/16 encoding/decoding for React Native written in C/C++ and JSI.

Installation

React Native

yarn add react-native-jsi-base-coder

Expo

expo install react-native-jsi-base-coder
expo prebuild

Usage

Default behavior is using the base64Rfc4648 algorithm to encode/decode the data.

import { encode, decode } from 'react-native-jsi-base-coder';

// With the default algorithm in `base64Rfc4648`.
encode('Hello World!'); // SGVsbG8gV29ybGQh
decode('SGVsbG8gV29ybGQh'); // Hello World!

// With the Base32 algorithm with the `base32Rfc4648`.
encode('Hello World!', { algorithm: Algorithm.base32Rfc4648 }); // JBSWY3DPEBLW64TMMQQQ====
decode('JBSWY3DPEBLW64TMMQQQ====', { algorithm: Algorithm.base32Rfc4648 }); // Hello World!

API

encode

function (stringToEncode: string, config?: Config): string

Takes a string and returns an encoded string.

decode

Takes an encoded string and returns a decoded string.

function (bytesToDecode: string, config?: Config): string

config

The config object only take one property algorithm to define how you want to encode/decode your data. The default algorithm used is base64Rfc4648.

enum Algorithm {
  'base64Rfc4648' = 'base64Rfc4648',
  'base64Url' = 'base64Url',
  'base64UrlUnpadded' = 'base64UrlUnpadded',
  'base32Rfc4648' = 'base32Rfc4648',
  'base32Crockford' = 'base32Crockford',
  'base32Hex' = 'base32Hex',
  'base16Upper' = 'base16Upper',
  'base16Lower' = 'base16Lower',
}

encode('string to encode', { algorithm: Algorithm.base32Crockford });

Example

To run the development example you can use the following command:

cd example
yarn

Acknowledgements

• Thanks to Marc for his JSI template react-native-jsi-library-template.
• Thanks to cppcodec for the C implementation.

License

MIT