@blooo/hw-app-everscale v1.0.0

Ledger Wallet Everscale JavaScript SDK

This repository contains JavaScript bindings for interacting with the Everscale Ledger App.

Installation

To use this SDK, install it via npm:

npm install @blooo/hw-app-everscale

API

Table of Contents

• Everscale
  • Parameters
  • Examples
  • getAppConfiguration
    • Examples
  • getAddress
    • Parameters
    • Examples
  • getPublicKey
    • Parameters
    • Examples
  • signMessage
    • Parameters
    • Examples
  • signTransaction
    • Parameters
    • Examples

Everscale

Everscale API

Parameters

• transport Transport a transport for sending commands to a device
• scrambleKey a scramble key (optional, default "everscale_default_scramble_key")

Examples

import Everscale from "@blooo/hw-app-everscale";
const Everscale = new Everscale(transport);

getAppConfiguration

Get the application configuration from the device.

Examples

const version = await everscale.getAppConfiguration();
console.log(version); // "1.1.0"

Returns Promise[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) A promise that resolves to the application version as a string in the format "major.minor.patch".

getAddress

Get the Everscale address for a given account number and wallet type.

Parameters

• accountNumber number The account number to derive the address from.
• walletType WalletType The type of wallet to use (e.g., WALLET_V3).
• display boolean Whether to display the address on the device for confirmation (default: true). (optional, default true)

Examples

const address = await everscale.getAddress(0, WalletType.WALLET_V3, true);
console.log(address); // "0x7571b498e3fed7a0fffbe21377e50548c92da4a04842e1b163547d3e8980cf64"

Returns Promise[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) A promise that resolves to the Everscale address as a hexadecimal string prefixed with "0x".

getPublicKey

Get the public key for a given account number.

Parameters

• accountNumber number The account number to derive the public key from.
• display boolean Whether to display the public key on the device for confirmation (default: true). (optional, default true)

Examples

const publicKey = await everscale.getPublicKey(0, false);
console.log(publicKey); // "0x3099f14eccaa0542d2d60e92eb66495f6ecf01a114e12f9db8d9cb827a87bf84"

Returns Promise[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) A promise that resolves to the public key as a hexadecimal string prefixed with "0x".

signMessage

Sign a message with the private key derived from the given account number.

Parameters

• accountNumber number The account number to derive the signing key from.
• messageHash string The hash of the message to sign, as a hexadecimal string with or without "0x" prefix.

Examples

const signature = await everscale.signMessage(0, "1111111111111111111111111111111111111111111111111111111111111111");
console.log(signature); // "0x40d4883fb9095f3610dfc0888917c8b5548c7074f0f010966c94a5c405ccabe8d320c90334786dbf2b34f10e75c5370ae151b0b11cb190a16d7509983964d6dd00"

Returns Promise[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) A promise that resolves to the signature as a hexadecimal string prefixed with "0x".

signTransaction

Sign a transaction with the device.

Parameters

• inputData string The payload to sign, as a hexadecimal string with or without "0x" prefix. The data is composed of: - Account number (4 bytes): The account number to retrieve - Wallet Type (1 byte): To derive address - Decimals (1 byte): Token decimals - Ticker length (1 byte): Length of the ticker string - Ticker (variable): Token ticker - Metadata (1 byte): Flags for optional fields - Current wallet number (1 byte, optional): To parse transaction ABI (if metadata & 0x01) - Workchain ID (1 byte, optional): Network workchain (if metadata & 0x02) - Deploy contract address (32 bytes, optional): Contract address (if metadata & 0x04) - Chain ID (4 bytes, optional): Network chain ID (if metadata & 0x08) - Serialized transaction (variable): The transaction data

Examples

const inputData = "0000000001090455534454000101040100C9002161B3BADB535D1B88D0E4D60D316567B1448568EFAFDF21846ECD0BA02E3ADABF97000000CA7E2C951FB3D692B2A677323640012165801BE2256B3D704F24C46AEA3298C1A5EA8F8D1AA86CCC89474BC0570265E7898AC0000000000000000036D36956F8B969D03802216B562548AD00000000000000000000000049504F808015E4256B3D704F24C46AEA3298C1A5EA8F8D1AA86CCC89474BC0570265E7898AD00328480101C03BF4894E22CDD500E450CBE5838B9938FDA1E4D3727FE3B5385C5114B0293F0001";
const signature = await everscale.signTransaction(inputData);
console.log(signature); // "0xa8b3ee327f6a64945e875d59ec49b12bea553b30170be65c541176f052156035428f8a0180e9f8802622b4f3339f2161076790b822e55c0d46f01b919f6de005"

Returns Promise[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String) A promise that resolves to the signature as a hexadecimal string prefixed with "0x".