本页面使用机器翻译自英语，可能包含错误或不清楚的语言。如需最准确的信息，请参阅英文原文。由于更新频繁，部分内容可能与英文原文有出入。请加入我们在 Crowdin 上的努力，帮助我们改进本页面的翻译。 (Crowdin translation page, Contributing guide)

基于角色的账户密钥

AccountKeyRoleBased 表示基于角色的密钥。如果账户有一个** AccountKeyRoleBased对象，且交易类型为except account update**，那么验证过程将根据每个角色进行，如下所示：

从web3py_ext导入extend，将 web3 扩展为 kaia web3

从 eth_account、web3py_ext 和 cytools 中导入必要的实用程序

使用 kairos testnet 端点创建 Web3 实例

此外，您还可以将提供商 URL 从 kairos 更改为 quicknode 。

从私人密钥加载 3 个账户

创建一个TxType.ACCOUNT_UPDATE类型的空交易。您可以使用 empty_tx 工具来获取已填写默认字段的 tx。

使用 merge 工具，将 sender 和 keys 等附加字段合并到空 tx 中。

在这种情况下，要更新的账户密钥是基于ole-based密钥，每个角色的可能密钥类型是传统密钥、公共密钥或多重密钥。

您可以使用 compressed_key 工具来设置每个角色的密钥。它将从密钥中提取压缩公钥

使用 fill_transaction 为交易对象添加更多参数，如 gas 限制...

您可以使用 to_pretty 工具打印格式化的 tx。

签署账户更新 tx 类型。您必须使用已加载的 update_role 账户签署它

向网络发送*已签名的交易，并等待接收，直到交易在区块链中完全执行为止

web3_account_update_role_based.py


from web3py_ext import extend
from web3 import Web3
from eth_account import Account
from web3py_ext.klaytn_account.utils import compressed_key
from web3py_ext.klaytn_account.account_key import KeyType
from web3py_ext.transaction.transaction import (
    empty_tx,
    fill_transaction,
    TxType
)
from web3py_ext.utils.klaytn_utils import (
    to_pretty,
    bytes_to_hex_str
)
from cytoolz import merge
w3 = Web3(Web3.HTTPProvider(
  'https://public-en-kairos.node.kaia.io'
  ))
def web3_account_update_role_based():
    # Just for testing, user1 and user2 have the same key
    tx_role = Account.from_key("0xc9668ccd35fc20587aa37a48838b48ccc13cf14dd74c8999dd6a480212d5f7ac");
    update_role = Account.from_key("0x9ba8cb8f60044058a9e6f815c5c42d3a216f47044c61a1750b6d29ddc7f34bda");
    fee_payer_role = Account.from_key("0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8");
    account_update_tx = empty_tx(TxType.ACCOUNT_UPDATE)
    account_update_tx = merge(account_update_tx, {
        'from' : update_role.address, # 0x5bd2fb3c21564c023a4a735935a2b7a238c4ccea
        'key' : {
            'type': KeyType.ROLE_BASED,
            'keys' : {
                'roleTransactionKey': {
                    'type': KeyType.PUBLIC,
                    'key': compressed_key(tx_role)
                },
                'roleAccountUpdateKey': {
                    'type': KeyType.PUBLIC,
                    'key': compressed_key(update_role)
                },
                'roleFeePayerKey': {
                    'type': KeyType.PUBLIC,
                    'key': compressed_key(fee_payer_role)
                }
            }
        }
    })
    account_update_tx = fill_transaction(account_update_tx, w3)
    print(to_pretty(account_update_tx))
    # sign the kaia specific transaction type with web3py
    signed_tx = Account.sign_transaction(account_update_tx, update_role.key)
    print('\nrawTransaction:', bytes_to_hex_str(signed_tx.rawTransaction))
    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_account_update_role_based()

output


❯ py web3_account_update_role_based.py
{
  "from": "0x5bD2fb3c21564C023A4A735935a2B7A238C4cCEA",
  "gas": 159000,
  "gasPrice": 50000000000,
  "nonce": 52,
  "chainId": 1001,
  "type": 32,
  "key": {
    "type": 5,
    "keys": {
      "roleTransactionKey": {
        "type": 2,
        "key": "0x03f26489914098c5da51f0f646e3000da4d6197217df082b4f7ce1530f0a0cbf2a"
      },
      "roleAccountUpdateKey": {
        "type": 2,
        "key": "0x0263021199702b9fefca617bdcb2a9ed4a810dfa8d270d4e804a1e778450e63ec3"
      },
      "roleFeePayerKey": {
        "type": 2,
        "key": "0x03dc9dccbd788c00fa98f7f4082f2f714e799bc0c29d63f04d48b54fe6250453cd"
      }
    }
  }
}
rawTransaction: 20f8da34850ba43b740083026d18945bd2fb3c21564c023a4a735935a2b7a238c4cceab86f05f86ca302a103f26489914098c5da51f0f646e3000da4d6197217df082b4f7ce1530f0a0cbf2aa302a10263021199702b9fefca617bdcb2a9ed4a810dfa8d270d4e804a1e778450e63ec3a302a103dc9dccbd788c00fa98f7f4082f2f714e799bc0c29d63f04d48b54fe6250453cdf847f8458207f5a089c7e842c90cb3639a929b4d012b13b68ea680543ec31a05b53863580e93de4ba05ad477c3edf141c7f88a87ba12249500eff7532a448f33a6325d95c831f51d47
tx hash:  0x523877191b60450bf48ef29db40ee7191a0c5525af3255bea191c02970c088c7 receipt:  AttributeDict({'blockHash': HexBytes('0xf51f2bd1926578bf912353f6eea1b025271706eb83c438429184759dae902f5b'), 'blockNumber': 150554144, 'contractAddress': None, 'cumulativeGasUsed': 81000, 'effectiveGasPrice': 25000000000, 'from': '0x5bD2fb3c21564C023A4A735935a2B7A238C4cCEA', 'gasUsed': 81000, 'logs': [], 'logsBloom': HexBytes('0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'), 'status': 1, 'to': '0x5bD2fb3c21564C023A4A735935a2B7A238C4cCEA', 'transactionHash': HexBytes('0x523877191b60450bf48ef29db40ee7191a0c5525af3255bea191c02970c088c7'), 'transactionIndex': 0, 'type': 0})