create-txid.ts

import createHash from 'create-hash'
import { Avalanche, BN, Buffer } from "../../src"
import { AVMAPI, KeyChain as AVMKeyChain, UTXOSet, UnsignedTx, Tx } from "../../src/apis/avm"
import { KeyChain as PlatformVMKeyChain, PlatformVMAPI } from "../../src/apis/platformvm"
import { PrivateKeyPrefix, DefaultLocalGenesisPrivateKey, Defaults, UnixNow, SerializedType } from "../../src/utils"
import { Serialization } from "../../src/utils"

const serialization: Serialization = Serialization.getInstance()
const ip: string = "localhost"
const port: number = 9650
const protocol: string = "http"
const networkID: number = 12345
const avalanche: Avalanche = new Avalanche(ip, port, protocol, networkID)
const xchain: AVMAPI = avalanche.XChain()
const pchain: PlatformVMAPI = avalanche.PChain()
const xKeychain: AVMKeyChain = xchain.keyChain()
const pKeychain: PlatformVMKeyChain = pchain.keyChain()
const privKey: string = `${PrivateKeyPrefix}${DefaultLocalGenesisPrivateKey}`
xKeychain.importKey(privKey)
pKeychain.importKey(privKey)
const xAddressStrings: string[] = xchain.keyChain().getAddressStrings()
const pAddressStrings: string[] = pchain.keyChain().getAddressStrings()
const pChainBlockchainID: string = Defaults.network[networkID].P.blockchainID
const avaxAssetID: string = Defaults.network[networkID].X.avaxAssetID
const locktime: BN = new BN(0)
const asOf: BN = UnixNow()
const memo: Buffer = Buffer.from("AVM utility method buildExportTx to export AVAX to the P-Chain from the X-Chain")
const fee: BN = xchain.getDefaultTxFee()
const cb58: SerializedType = "cb58"

const main = async (): Promise<any> => {
  const avmUTXOResponse: any = await xchain.getUTXOs(xAddressStrings)
  const utxoSet: UTXOSet = avmUTXOResponse.utxos
  const getBalanceResponse: any = await xchain.getBalance(xAddressStrings[0], avaxAssetID)
  const balance: BN = new BN(getBalanceResponse.balance)
  const amount: BN = balance.sub(fee)

  const unsignedTx: UnsignedTx = await xchain.buildExportTx(
    utxoSet,
    amount,
    pChainBlockchainID,
    pAddressStrings,
    xAddressStrings,
    xAddressStrings,
    memo,
    asOf,
    locktime
  )

  const tx: Tx = unsignedTx.sign(xKeychain)
  const buffer: Buffer = Buffer.from(createHash("sha256").update(tx.toBuffer()).digest().buffer)
  const txid: string = serialization.bufferToType(buffer, cb58)
  console.log(txid)
  // APfkX9NduHkZtghRpQASNZJjLut4ZAkVhkTGeazQerLSRa36t
}

main()