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智能合約詳情

TxTypeSmartContractDeploy 向給定地址部署智能合約。該交易類型將進行以下更改。

從web3py_ext導入extend，將 web3 擴展為 kaia web3

從 eth_account、web3py_ext 和 cytoolz 中導入必要的實用程序

使用 kairos testnet 端點創建 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

創建一個TxType.TX_TYPE_FEE_DELEGATED_SMART_CONTRACT_DEPLOY類型的空事務。您可以使用 empty_tx 工具來獲取已填寫默認字段的 tx。

使用 merge 工具，將 from 和 data 等**附加字段合併到空 tx 中。

從要部署到區塊鏈網絡的 solidity 代碼中設置編譯字節碼

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值傳輸 tx

從已簽署的 tx 中的簽名中恢復簽名人地址

在最後一筆原始交易上籤署繳費人賬戶

從已簽署的 tx 中的簽名中恢復繳費人地址

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。

將tx發送到區塊鏈。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。

fee_delegated_smart_contract_deploy_sign_recover.py


from web3py_ext import extend
from web3 import Web3
from eth_account import Account
from web3py_ext.transaction.transaction import (
    empty_tx,
    fill_transaction,
    TX_TYPE_FEE_DELEGATED_SMART_CONTRACT_DEPLOY
)
from web3py_ext.utils.klaytn_utils import to_pretty
from cytoolz import merge
w3 = Web3(Web3.HTTPProvider('https://public-en-kairos.node.kaia.io'))
def web3_fee_delegated_smart_contract_deploy_sign_recover():
    user = Account.from_key('0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8')
    fee_delegator = Account.from_key('0x9435261ed483b6efa3886d6ad9f64c12078a0e28d8d80715c773e16fc000cff4')
    smart_contract_deploy_tx = empty_tx(TX_TYPE_FEE_DELEGATED_SMART_CONTRACT_DEPLOY)
    smart_contract_deploy_tx = merge(smart_contract_deploy_tx, {
        'from' : user.address,
        'data' : '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',
    })
    smart_contract_deploy_tx = fill_transaction(smart_contract_deploy_tx, w3)
    # sign the kaia specific transaction type with web3py
    signed_tx = Account.sign_transaction(smart_contract_deploy_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)
    feepayer_signed_tx = Account.sign_transaction_as_feepayer(signed_tx.rawTransaction, fee_delegator.address, fee_delegator.key)
    print("\nraw transaction of feePayer signed tx:", feepayer_signed_tx.rawTransaction.hex())
    feepayer_recovered_tx = Account.recover_transaction_as_feepayer(feepayer_signed_tx.rawTransaction)
    print("recovered feepayer address:", feepayer_recovered_tx)
    decoded_tx = Account.decode_transaction(feepayer_signed_tx.rawTransaction)
    print("\ndecoded transaction:", to_pretty(decoded_tx))
    tx_hash = w3.eth.send_raw_transaction(feepayer_signed_tx.rawTransaction)
    tx_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
    print('tx hash: ', tx_hash, 'receipt: ', tx_receipt)
web3_fee_delegated_smart_contract_deploy_sign_recover()

output


❯ py fee_delegated_smart_contract_deploy_sign_recover.py
output