legacy

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TxTypeLegacyTransaction 代表 kaia 以前存在的一種事務類型。

**這種類型的交易可以創建賬戶、轉移代幣、部署智能合約、執行智能合約，或者執行上述交易的混合。

從web3py_ext導入extend，將 web3 擴展到 kaia web3。在這種情況下，如果要使用kaia 專用工具，如Web3.to_peb，則應擴展

從 eth_account、web3py_ext 導入必要的實用程序

使用指定的 kairos 測試網 URL 創建 Web3 實例

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

從私人密鑰加載賬戶

只用 from、to、value 字段定義 legacy tx。使用單位轉換器 Web3.to_peb

使用 fill_transaction 為交易對象添加更多參數，如 gas 限制...

用用戶的私人密鑰簽署傳統 tx

從已簽署的 tx 中的簽名中恢復簽名人地址

您可以使用Account.decode_transaction工具對 RLP 編碼的 tx 進行解碼，如果您想讓輸出格式更漂亮，請使用to_pretty工具。

向區塊鏈發送 tx。它將返回 tx 哈希值，用於等待接收

如果交易已在區塊鏈中完成，wait_for_transaction_receipt 方法會返回交易收據。

最後，得到結果。

txTypeLegacyTransaction.py


from web3py_ext import extend
from web3 import Web3
from eth_account import Account
from web3py_ext.transaction.transaction import (
    fill_transaction,
)
from web3py_ext.utils.klaytn_utils import to_pretty
w3 = Web3(Web3.HTTPProvider(
    'https://public-en-kairos.node.kaia.io'
    ))
def web3_legacy_value_transfer_sign_recover():
    user = Account.from_key('0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8')
    value_transfer_tx = {
        'from' : user.address,
        'to' : user.address, # to self
        '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)
    print("\nraw transaction of signed tx:", signed_tx.rawTransaction.hex())
    recovered_tx = Account.recover_transaction(signed_tx.rawTransaction)
    print("\nrecovered sender address", recovered_tx)
    decoded_tx = Account.decode_transaction(signed_tx.rawTransaction)
    print("\ndecoded transaction:", to_pretty(decoded_tx))
    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)
web3_legacy_value_transfer_sign_recover()

output


❯ python txTypeLegacyTransaction.py
raw transaction of signed tx: 0x02f8738203e982036480850ba43b740082f61894a2a8854b1802d8cd5de631e690817c253d6a9153888ac7230489e8000080c080a0bf6b983904416f360b1563a92e162d15cd67efb22593873f63ccee150f4e1547a02fa3f5582c060e94b73b1cafdfa662fca93866484ef0953c06aa99d1aeceb491
recovered sender address 0xA2a8854b1802D8Cd5De631E690817c253d6a9153
decoded transaction: {
  "chainId": 1001,
  "to": "0xA2a8854b1802D8Cd5De631E690817c253d6a9153",
  "value": 10000000000000000000,
  "data": "0x",
  "accessList": [],
  "nonce": 868,
  "maxPriorityFeePerGas": 0,
  "maxFeePerGas": 50000000000,
  "gas": 63000,
  "v": 0,
  "r": 86581857317945006820941358514738363124805940633281219922143445788962711278919,
  "s": 21548393259938899817541519708353317088336325701153952868361768013661633164433,
  "type": 2
}
tx hash:  b'y\xe4+\xff\x8b\xed\x11D\xd9N\x85\xd4\x0f3\r\x82+\x8d\xc4$3\xaek\xc0\x0b\x81\x97\x8f\xd1\xeb\xb5\xd1' receipt:  AttributeDict({'blockHash': HexBytes('0x53b38f1b5a53f67d34ab648581ae7425f1915e49ca3869ae14c56df405791a02'), 'blockNumber': 147332771, 'contractAddress': None, 'cumulativeGasUsed': 557368, 'effectiveGasPrice': 25000000000, 'from': '0xA2a8854b1802D8Cd5De631E690817c253d6a9153', 'gasUsed': 21000, 'logs': [], 'logsBloom': HexBytes('0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'), 'status': 1, 'to': '0xA2a8854b1802D8Cd5De631E690817c253d6a9153', 'transactionHash': HexBytes('0x79e42bff8bed1144d94e85d40f330d822b8dc42433ae6bc00b81978fd1ebb5d1'), 'transactionIndex': 3, 'type': 2})