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@blooo/hw-app-klaytn

Ledger Hardware Wallet Klaytn JavaScript bindings.

API

Table of Contents

• Klaytn
  • Parameters
    • Examples
  • Basic Information Methods
    • getVersion()
      • Examples
    • getAddress()
      • Parameters
      • Examples
  • Transaction signing methods
    • Parameters
    • Examples

Klaytn

Klaytn API

Parameters

• transport. A transport for sending commands to a device
• scrambleKey. A scramble key (optional, default "klaytn_default_scramble_key")

Examples

import Klaytn from "blooo/hw-app-klaytn";
const klaytn = new Klaytn(transport);

Basic Information methods

getVersion()

Get application version.

Examples

klaytn.getVersion().then((r) => r.version);

Returns Promise<{version: string}> version object

getAddress

Get Klaytn address (public key) for a BIP32 path.

Parameters

• path string a BIP32 path without the address index
• display boolean flag to show display (default)
• accountIndex number index of account address (optional, default 0)

Examples

klaytn.getAddress("44'/8217'/0'/0/", false, 0).then((r) => r.address);

Returns Promise<{address: string, publicKey: string, chainCode: string | undefined}> an object with the address field

Transaction Signing Method

To sign a Klaytn transaction use the method: signTransaction .

Parameters

• txn. A caver transaction.
• accountIndex index of account address (optional, default 0)

Examples

import Caver from "caver-js";

const caver = new Caver();

const accountIndex = 1;

const txn = caver.transaction.valueTransfer.create({
  from: "enter address here",
  to: "enter address here",
  value: 1,
  gasPrice: 50000000000,
  gas: 300000,
  nonce: 1,
  chainId: 1001,
});

klaytn.signTransaction(txn, accountIndex).then((r) => r.signature);

Returns Promise<{signature: [v,r,s], signedTxn: caver transaction.}> an object with the signed transaction and signature