Code Example for EOA Deposit

Below are example implementations for setting up and executing deposits into the Gas.zip V2 EOA Deposit address.

Deposits using the EOA method must include calldata defining the output chains. Use the example code for an up-to-date spec of how to format the calldata.

For a list of all supported chains for EOA deposits, please refer to the EOA Deposit Supported Chains section.

viem

import { parseEther, http, createWalletClient, publicActions, toHex } from 'viem'
import { privateKeyToAccount } from 'viem/accounts'
import { optimism } from 'viem/chains'
import { depositABI } from './depositABI'
import bs58 from 'bs58'
 
// Create a wallet from a private key
const account = privateKeyToAccount('0x...')
 
// Connect the wallet to a provider
const client = createWalletClient({
  account,
  chain: optimism, // Target Chain
  transport: http(),
}).extend(publicActions)
 
// Replace with address you want to send funds to
const toAddress = account.address
 
// Each chain will receive an equal portion of the value sent
const amount: bigint = parseEther('0.0006')
 
// This example is targeting zkSync (51), Polygon zkEVM (52)
const gasZipShortChainIDs = [51, 52]
 
const encodeTransactionInput = (to: string, shorts: number[]) => {
  let data = '0x'
  if (to.toLowerCase() !== account.address?.toLowerCase()) {
    if (to.length === 42) { // evm address
      data += '02'
      data += to.slice(2)
    } else if (new RegExp(/[1-9A-HJ-NP-Za-km-z]{32,44}/).test(to)) { // base58 sol address
      data += '03'
      data += Buffer.from(bs58.decode(to)).toString('hex')
    } else {
      return null
    }
  } else {
    data += '01' // to == sender
  }
 
  for (const i in shorts) {
    data += toHex(shorts[i]).slice(2).padStart(4, '0')
  }
  return data
}
 
const txData = encodeTransactionInput(toAddress, gasZipShortChainIDs)
 
;(async () => {
  // Prepare the contract write configuration
  const hash = await client.sendTransaction({
    address: '0x391E7C679d29bD940d63be94AD22A25d25b5A604',
    value: amount,
    data: txData,
  })
})()