The Cardano Wallet

The output of wasm-pack on IOHK's cardano wallet

Friday 01 March 2019

I am so proud to announce the 1.0.0 release of cardano-wallet. A fully object oriented JavaScript Library built on top of the Cardano SDK.

The Rust Team at IOHK has been working hard to finally provide a stable and meaningful APIs for developers to write their own wallet applications. Now there is a package that is object oriented, that has better error inputs and that have amazing performances even though it has to translate some values between JavaScript and Rust.

What is it about

It all started with the Icarus project last year. At the time we wrote a first version of the crypto graphic library in rust and provided hand-written bindings from rust to JS. While it worked well to a certain point it was not a great API to utilise.

Before you would have to do this:

const CardanoCrypto = require('OldCardanoCrypto.js');

const SEED = new Uint8Array([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,]);
const root_xprv = CardanoCrypto.HdWallet.fromSeed(seed);
const xpub = CardanoCrypto.HdWallet.toPublic(xprv);
const known_address = CardanoCrypto.HdWallet.publicKeyToAddress(xpub);

While very raw it also comes without type script annotations.

Now you can:

const MNEMONICS = "crowd captain hungry tray powder motor coast oppose month shed parent mystery torch resemble index";
const PASSWORD = "Cardano Rust for the winners!";

let settings = Wallet.BlockchainSettings.mainnet();

let entropy = Wallet.Entropy.from_english_mnemonics(MNEMONICS);
let wallet = Wallet.Bip44RootPrivateKey.recover(entropy, PASSWORD);

let account = wallet.bip44_account( | 0x80000000));
let account_public = account.public();

let key_prv = account.address_key(false,;
let key_pub = account_public.address_key(false,;

let address = key_pub.bootstrap_era_address(settings);