tnb-hd-wallet
Version:
A hd wallet that derives public and private keys from a 12 word mnemonic phrase with support
45 lines (44 loc) • 2.31 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.BtcHdWallet = void 0;
const axios_1 = __importDefault(require("axios"));
const webHd_1 = require("./webHd");
const bip32_1 = require("bip32");
const bs58check_ts_1 = __importDefault(require("bs58check-ts"));
class BtcHdWallet extends webHd_1.WebHdWallet {
constructor(seed, configOptions = { addressGapLimit: 20 }) {
super(seed, "bitcoin", configOptions);
}
hasAddressBeenUsed(publicKey) {
return __awaiter(this, void 0, void 0, function* () {
const data = (yield axios_1.default.get(`https://api.blockchair.com/bitcoin/dashboards/address/${publicKey}?limit=1`)).data.data;
const transactionCount = data[publicKey].address.transaction_count;
return !!transactionCount;
});
}
formatAddress(address) {
if (address.chainCode) {
const privateKey = Buffer.from(address.privateKey, "hex");
const chainCode = Buffer.from(address.chainCode, "hex");
const bip32 = bip32_1.fromPrivateKey(privateKey, chainCode);
delete address.chainCode;
const identifier = bip32.identifier;
const pubKey = bs58check_ts_1.default.encode(Buffer.concat([Buffer.alloc(1), identifier]));
return Object.assign(Object.assign({}, address), { publicKey: pubKey, privateKey: bip32.toWIF() });
}
return address;
}
}
exports.BtcHdWallet = BtcHdWallet;