Legacy Account Key

從web3py_ext導入extend，將 web3 擴展為 kaia web3

從 web3 和 eth_account 導入必要的實用程序

使用 Web3.HTTPProvider 和 RPC 端點定義 web3 連接

此外，您還可以將提供商 URL 從 kairos 更改為 quicknode 。

使用 **Account.from_key ** 從私人密鑰定義錢包

創建一個事務，其中包含from、to和value字段以進行傳輸。

from：發件人地址，to：接收 kaia 的目標地址。

value 字段表示要發送多少 kaia，您可以使用 Web3.to_peb 工具將 kaia 轉換為 peb 單位。

使用 fill_transaction 添加交易的其餘字段，如氣量限制、Nonce等。 如果您想查看以下內容，可以打印這一行之後的所有字段

用發送方的私人密鑰簽署交易

向網絡發送*已簽名的交易，並等待接收，直到交易在區塊鏈中完全執行為止

使用 Account.recover_transaction 從簽名交易中恢復發件人地址

web3_legacy_value_transfer_sign_recover.py

from web3py_ext import extend

from web3 import Web3

from eth_account import Account

from web3py_ext.transaction.transaction import (

fill_transaction,

)

w3 = Web3(Web3.HTTPProvider(

'https://public-en-kairos.node.kaia.io'

))

def web3_tx_sign_recover_legacy():

user = Account.from_key('0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8')

value_transfer_tx = {

'from' : user.address,

'to' : user.address,

'value' : Web3.to_peb(10, "klay"),

}

value_transfer_tx = fill_transaction(value_transfer_tx, w3)

signed_tx = Account.sign_transaction(value_transfer_tx, user.key)

tx_hash = w3.eth.send_raw_transaction(signed_tx.rawTransaction)

tx_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)

print('tx hash: ', tx_hash, 'receipt: ', tx_receipt)

recovered_tx = Account.recover_transaction(signed_tx.rawTransaction)

print("\nsender", user.address, "\nrecovered", recovered_tx)

web3_tx_sign_recover_legacy()

output

❯ py web3_legacy_value_transfer_sign_recover.py

tx hash: 0x26e3137f5a44e64c7238367dc9d4270e63aaedd584ad7854509612fe82d24f74 receipt: AttributeDict({'blockHash': HexBytes('0xfa5dc338557b4bb74ed640bb95f3249f258469e2ff805f38b437287dce4a5d73'), 'blockNumber': 150557816, 'contractAddress': None, 'cumulativeGasUsed': 21000, 'effectiveGasPrice': 25000000000, 'from': '0xA2a8854b1802D8Cd5De631E690817c253d6a9153', 'gasUsed': 21000, 'logs': [], 'logsBloom': HexBytes('0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'), 'status': 1, 'to': '0xA2a8854b1802D8Cd5De631E690817c253d6a9153', 'transactionHash': HexBytes('0x26e3137f5a44e64c7238367dc9d4270e63aaedd584ad7854509612fe82d24f74'), 'transactionIndex': 0, 'type': 2})

sender 0xA2a8854b1802D8Cd5De631E690817c253d6a9153

recovered 0xA2a8854b1802D8Cd5De631E690817c253d6a9153