MyWallet

JavaScript Model for Blockchain.info wallet.

Build

npm install
grunt build

Tests

npm test

Dev

Watch files and re-build

grunt

Clean

Clean generated files:

grunt clean

Getting Started

Load dist/my-wallet.js.

Optional: set alias for modules you use

var MyWallet = Blockchain.MyWallet;
var WalletStore = Blockchain.WalletStore;
var Spender = Blockchain.Spender;
var API = Blockchain.API;

Disable logout, if desired, for development work:

MyWallet.disableLogout(true);

// Set an interval, since logout gets reactived by certain parts of the code
window.setInterval(function() { MyWallet.disableLogout(true); }, 60000);

My Wallet communicates about its state with user-defined event listeners. Setup a listener like so:

function myListenerFun(eventName, data) {
    // Handle events
}

// Register listener function with MyWallet
MyWallet.addEventListener(myListenerFun);

Some events that we need to process:

Event Name	Our Action
did_multiaddr	Populate wallet statistics on the UI
hd_wallets_does_not_exist	Create an HD wallet
on_wallet_decrypt_finish	Get wallet transaction history

To build an HD wallet with an existing legacy wallet, we must initialize after receiving event notification from MyWallet.

var passphrase = MyWallet.generateHDWalletPassphrase();

MyWallet.initializeHDWallet(passphrase, null, null, _successFun, _errorFun);

Load a wallet from the server, with no 2FA

var guid = "my-wallet-guid-1234-bcde";
var pass = "wallet-password";
var twoFactorCode = null;

MyWallet.fetchWalletJSON(guid, null, null, pass, twoFactorCode,
    successFun, need2FAfun, wrong2FAfun, otherErrorFun);

// Do stuff with the wallet
var LegacyAddresses = MyWallet.getLegacyActiveAddresses();

In order to fetch the wallet history, make a call to get_history:

MyWallet.get_history(_successFun, _errorFun);

get_history will trigger the did_multiaddr event on completion, so the wallet stats and display can be updated.

Distribution

Run GITHUB_USER=... GITHUB_PASSWORD=... grunt dist to check all dependencies against dependency-whitelist.json and generate `my-wallet.min.js``.

If package.json contains a version like "1.2.", the latest version is 1.2.3, but the latest whitelisted version is 1.2.2 then it will use 1.2.2 and show a warning. This also applies to dependencies! Even if you specificy a package version like 1.2., if that package depends on an another package and specifies a specific version that's not whitelist, the script will abort.

Adding a browserified dependency

1. npm install newpackage --save
2. Add the require where needed
3. npm install

Whitelist dependencies

1. Add the tagged version and the commit hash to dependency-whitelist.json.
2. Run grunt dist

Security

Security issues can be reported to us in the following venues:

• Email: [email protected]
• Bug Bounty: https://www.crowdcurity.com/blockchain-info