transfer.py

from eth_typing import HexStr
from web3 import Web3
from zksync2.module.module_builder import ZkSyncBuilder
from zksync2.core.types import ZkBlockParams
from eth_account import Account
from eth_account.signers.local import LocalAccount
from zksync2.signer.eth_signer import PrivateKeyEthSigner
from zksync2.transaction.transaction_builders import TxFunctionCall

from os import getenv
from dotenv import load_dotenv
load_dotenv()

def transfer_to_self():
    amount = 0.0001
    account: LocalAccount = Account.from_key(getenv('TKEY'))
    zksync_web3 = ZkSyncBuilder.build(getenv('ZKNODE'))
    chain_id = zksync_web3.zksync.chain_id
    signer = PrivateKeyEthSigner(account, chain_id)

    nonce = zksync_web3.zksync.get_transaction_count(account.address, ZkBlockParams.COMMITTED.value)
    gas_price = zksync_web3.zksync.gas_price

    tx_func_call = TxFunctionCall(chain_id=chain_id,
      nonce=nonce,
      from_=account.address,
      to=account.address,
      value=Web3.to_wei(amount, 'ether'),
      data=HexStr("0x"),
      gas_limit=0,  # unknown at this state, will be replaced by estimate_gas
      gas_price=gas_price,
      max_priority_fee_per_gas=100000000)
    estimate_gas = zksync_web3.zksync.eth_estimate_gas(tx_func_call.tx)
    print(f"Fee for transaction is: {estimate_gas * gas_price}")

    tx_712 = tx_func_call.tx712(estimate_gas)

    singed_message = signer.sign_typed_data(tx_712.to_eip712_struct())
    msg = tx_712.encode(singed_message)
    tx_hash = zksync_web3.zksync.send_raw_transaction(msg)
    tx_receipt = zksync_web3.zksync.wait_for_transaction_receipt(tx_hash, timeout=240, poll_latency=0.5)
    print(f"tx_hash : {tx_hash.hex()}, status: {tx_receipt['status']}")


if __name__ == "__main__":
    transfer_to_self()