Get Addresses from xPub

AirGap Wallet can currently not display additional receiving addresses after the first one.

This snippet can be used to show other receiving addresses. To use it, open the vault and copy the "sync" request and replace the data in the snippet below.

You can use the BIP39 tool to verify the output by entering the extended public key there.

caution

Entering your extendedPublicKey online on an insecure website will reduce your privacy.

import {
  Serializer,
  BitcoinProtocol,
  IACMessageType,
  SubProtocolSymbols,
  MainProtocolSymbols,
  AccountShareResponse,
} from "@airgap/coinlib-core";

const serializer = new Serializer();

// This is the AccountShareResponse for the following mnemonic
// abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about

// Single QR
const qrData =
  "airgap-wallet://?d=66ds3Rvy92D8gFd9dpatACJrYj3goYAhEZkY6NoX4AAZfetmZ95NoLEyL5L9bUKtvonnnEFmiBhu5YPqVSsU7Nzd9WWEdJNcGzHnzHCne6CN9kzE7nkQHes78VafWwHqJmjfrnzix1xorBMmGXFq792cjof3pGMAjeUWPqW6YyNtvkRuogp2vnMtHCpXxbESojgd9wg9tCEWoxYyDZTP8gb";
// Paged QRs
// const qrData =
//   "5LogPgc9Kvs7dVratQJaJcradjCUzyDF,5LogPgcKwnDGiwfMwnALTeFiRBsWTGKW,5LogPgcWZdZRo4YrWLmR7mx7eaxngQLj,5LogPgchBUuatt63m5hQqJYaRtWaGuy5,5LogPgcsoLFjzUqs65uArQYMUtiK2m23,5LogPgd4RBbu5sNFkYKx1Zje9gh7Ert4,5LogPgdF32x4B2FZxPzCuKMFRJWTnmpU,5LogPgdRetJDGWfDhY7JavQLAqw2xHXV,5LogPgdcGjeNMpQLTnsRnLNTpTpZda1z,5LogPgdntazXTbgqrYfE5tqo9fafssP1,2UPEHD4AvBBjV1JwgM3raLeciupVL3gKYcb,2UPEHD4AvBNMLMU2vjXSmYCBkadvFZzoGkq,2UPEHD4AvBYyBhd8WJ38TfKpiN5B87cZKm6,2UPEHD4AvBjb33nDcc9vnzeExdqwgVYVaUY,LFhi4KqPsLB5xobt589oqGKDbc5Rnm3bv";

const data = (() => {
  try {
    const url = new URL(qrData);
    return [url.searchParams.get("d")];
  } catch (e) {
    return qrData.split(",");
  }
})();

const output = await serializer.deserialize(data);

console.log(output);
if (
  output[0].type !== IACMessageType.AccountShareResponse &&
  output[0].protocol !== MainProtocolSymbols.BTC
) {
  throw new Error("Not BTC");
}

const protocol = new BitcoinProtocol();
const addresses = await protocol.getAddressesFromExtendedPublicKey(
  (output[0].payload as AccountShareResponse).publicKey,
  0,
  100,
  0
);

addresses.forEach((address, index) => {
  console.log(index, address);
});

https://example.com