@thorchain/asgardex-bitcoin
v0.5.0
Published
Custom Bitcoin client and utilities used by ASGARDEX clients
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Readme
@thorchain/asgardex-bitcoin
Implements the following:
interface BitcoinClient {
generatePhrase(): string
setPhrase(phrase?: string): void
validatePhrase(phrase: string): boolean
purgeClient(): void
setNetwork(net: Network): void
getNetwork(net: Network): Bitcoin.networks.Network
setBaseUrl(endpoint: string): void
getAddress(): string
validateAddress(address: string): boolean
scanUTXOs(): Promise<void>
getBalance(): number
getBalanceForAddress(address?: string): Promise<number>
getTransactions(address: string): Promise<Txs>
calcFees(memo?: string): Promise<object>
vaultTx(addressVault: string, valueOut: number, memo: string, feeRate: number): Promise<string>
normalTx(addressTo: string, valueOut: number, feeRate: number): Promise<string>
}
Modules
client
- Custom client for communicating with Bitcoin using BIP39 bitcoinjs-lib and WIF
Installation
yarn add @thorchain/asgardex-bitcoin
Following dependencies will be installed into your project:
- bitcoinjs-lib
- bip39
- wif
- moment
- axios
Testing
Uses a dotenv file to hold a USER_PHRASE
and a VAULT_PHRASE
Usage
Initialize client and use class methods:
import { Client, Network } from '../src/client'
const btcClient = new Client(Network.TEST)
const newPhrase = btcClient.generatePhrase()
.generatePhrase()
Generate a 12 word BIP-39 seed phrase.
Return: string
.setPhrase(phrase
)
Loads a 12 word BIP-39 seed phrase to use as a BTC send/receive address.
phrase: 12 word BIP-39 seed phrase as string
Return: void
.validatePhrase(phrase
)
Validates if provided phrase
is BIP-39.
phrase: 12 word BIP-39 seed phrase as string
Return: boolean
.purgeClient()
Clears UTXOs and seed phrase from client class properties.
Return: void
.setNetwork(net
)
Set testnet or mainnet network using the Network
interface.
net: Network.TEST
or Network.MAIN
Return: void
.setBaseUrl(endpoint
)
Set an electrs REST API endpoint to use for chain data.
endpoint: endpoint as string
Return: void
.getAddress()
Gets a P2WPKH address using the seed phrase set in .setPhrase()
or initialization. If no phrase is set will error.
Return: string
.validateAddress(address
)
Validates if provided address
is p2wpkh and same network as the client.
address: string
Return: boolean
.scanUTXOs()
Async
Scans the UTXOs on the set seed phrase in .setPhrase()
and stores them in class properties.
Return: void
.getBalance()
Get the balance of UTXOs from .scanUTXOs()
Return: number
in sats
.getBalanceForAddress(address
)
Async
Get the balance of UTXOs for an external address
address: string
Return: number
in sats
.getTransactions(address
)
Async
Get transactions for an address
address: string
Return: Array
of objects
.calcFees(memo
)
Async
Calculates the fee rate and the fee total estimate for fast, regular, and slow transactions. Add a memo
for a vault TX
memo: string
optional
Return: object
of objects
.vaultTx(addressVault
, valueOut
, memo
, feeRate
)
Async
Generates a valid Vault TX hex to be broadcast
addressVault: string
valueOut: number
in sats
memo: string
feeRate: number
.normalTx(addressTo
, valueOut
, feeRate
)
Async
Generates a valid Vault TX hex to be broadcast
addressTo: string
valueOut: number
in sats
feeRate: number