ethereumjs-wallet
Version:
Utilities for handling Ethereum keys
65 lines • 2.02 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const index_1 = __importDefault(require("./index"));
const hdkey_1 = require("ethereum-cryptography/hdkey");
class EthereumHDKey {
constructor(_hdkey) {
this._hdkey = _hdkey;
}
/**
* Creates an instance based on a seed.
*
* For the seed we suggest to use [bip39](https://npmjs.org/package/bip39) to
* create one from a BIP39 mnemonic.
*/
static fromMasterSeed(seedBuffer) {
return new EthereumHDKey(hdkey_1.HDKey.fromMasterSeed(seedBuffer));
}
/**
* Create an instance based on a BIP32 extended private or public key.
*/
static fromExtendedKey(base58Key) {
return new EthereumHDKey(hdkey_1.HDKey.fromExtendedKey(base58Key));
}
/**
* Returns a BIP32 extended private key (xprv)
*/
privateExtendedKey() {
if (!this._hdkey.privateExtendedKey) {
throw new Error('This is a public key only wallet');
}
return this._hdkey.privateExtendedKey;
}
/**
* Return a BIP32 extended public key (xpub)
*/
publicExtendedKey() {
return this._hdkey.publicExtendedKey;
}
/**
* Derives a node based on a path (e.g. m/44'/0'/0/1)
*/
derivePath(path) {
return new EthereumHDKey(this._hdkey.derive(path));
}
/**
* Derive a node based on a child index
*/
deriveChild(index) {
return new EthereumHDKey(this._hdkey.deriveChild(index));
}
/**
* Return a `Wallet` instance as seen above
*/
getWallet() {
if (this._hdkey._privateKey) {
return index_1.default.fromPrivateKey(this._hdkey._privateKey);
}
return index_1.default.fromPublicKey(this._hdkey._publicKey, true);
}
}
exports.default = EthereumHDKey;
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