Piggybank

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Examples ​

Propose a transaction to a Safe wallet ​

1. Set up clients ​

ts
import { http, createPublicClient, parseEther, getAddress, createWalletClient, Hex } from 'viem'
import { goerli } from 'viem/chains'
import { publicSafeActions, walletSafeActions } from '@stauro/piggybank/actions'

const safeAddress = getAddress('0x_MY_SAFE_ADDRESS')

const publicClient = createPublicClient({
  transport: http(),
  chain: goerli,
}).extend(publicSafeActions(safeAddress))

const walletClient = createWalletClient({
  transport: http(),
  chain: goerli,
  account: privateKeyToAccount(process.env.PK as Hex),
}).extend(walletSafeActions())
import { http, createPublicClient, parseEther, getAddress, createWalletClient, Hex } from 'viem'
import { goerli } from 'viem/chains'
import { publicSafeActions, walletSafeActions } from '@stauro/piggybank/actions'

const safeAddress = getAddress('0x_MY_SAFE_ADDRESS')

const publicClient = createPublicClient({
  transport: http(),
  chain: goerli,
}).extend(publicSafeActions(safeAddress))

const walletClient = createWalletClient({
  transport: http(),
  chain: goerli,
  account: privateKeyToAccount(process.env.PK as Hex),
}).extend(walletSafeActions())

2. Set up base transaction data ​

ts
import { parseEther, getAddress, type Hex } from 'viem'

const txData = {
  to: getAddress(process.env.TO_ADDRESS as Hex),
  value: parseEther('0.001'),
  operation: OperationType.Call,
}
import { parseEther, getAddress, type Hex } from 'viem'

const txData = {
  to: getAddress(process.env.TO_ADDRESS as Hex),
  value: parseEther('0.001'),
  operation: OperationType.Call,
}

3. Calculate gas (tx and base) ​

ts
const safeTxGas = await publicClient.estimateSafeTransactionGas(txData)

const baseGas = await publicClient.estimateSafeTransactionBaseGas({ ...txData, safeTxGas })
const safeTxGas = await publicClient.estimateSafeTransactionGas(txData)

const baseGas = await publicClient.estimateSafeTransactionBaseGas({ ...txData, safeTxGas })

4. Get nonce, transaction hash and signature ​

ts
const nonce = await publicClient.getSafeNonce()

const safeTxHash = await publicClient.getSafeTransactionHash({ ...txData, safeTxGas, baseGas, nonce })

const senderSignature = await walletClient.generateSafeTransactionSignature({
  ...txData,
  nonce,
  safeTxGas,
  baseGas,
})
const nonce = await publicClient.getSafeNonce()

const safeTxHash = await publicClient.getSafeTransactionHash({ ...txData, safeTxGas, baseGas, nonce })

const senderSignature = await walletClient.generateSafeTransactionSignature({
  ...txData,
  nonce,
  safeTxGas,
  baseGas,
})

5. Propose the transaction ​

ts
import { ApiClient } from '@stauro/piggybank/api'

const apiClient = new ApiClient({ url: 'https://safe-transaction-goerli.safe.global', safeAddress })

await apiClient.proposeTransaction({
  safeTransactionData: { ...txData, safeTxGas, baseGas, nonce },
  senderAddress: walletClient.account.address,
  safeTxHash,
  senderSignature,
  chainId: goerli.id,
  origin: 'Piggybank',
  nonce,
})
import { ApiClient } from '@stauro/piggybank/api'

const apiClient = new ApiClient({ url: 'https://safe-transaction-goerli.safe.global', safeAddress })

await apiClient.proposeTransaction({
  safeTransactionData: { ...txData, safeTxGas, baseGas, nonce },
  senderAddress: walletClient.account.address,
  safeTxHash,
  senderSignature,
  chainId: goerli.id,
  origin: 'Piggybank',
  nonce,
})