# recover\_typed\_message

通过结构化消息数据和签名还原出签署者的账户地址。

## 方法定义

```python
@staticmethod
def recover_typed_message(domain_data: dict, message_types: dict, message_data: dict, signature: HexBytes) -> Optional[SignedMessageData]
```

## 参数说明

| 参数             | 类型       | 说明     |
| -------------- | -------- | ------ |
| domain\_data   | dict     | 域数据    |
| message\_types | dict     | 消息类型定义 |
| message\_data  | dict     | 消息数据   |
| signature      | HexBytes | 签名     |

## 返回值

返回 SignedMessageData 对象,包含以下字段:

| 字段              | 类型              | 说明    |
| --------------- | --------------- | ----- |
| message\_hash   | HexBytes        | 消息哈希  |
| message         | str             | 原始消息  |
| signer          | ChecksumAddress | 签名者地址 |
| signature\_data | SignatureData   | 签名数据  |

## 示例代码

```python
# 恢复 EIP-712 结构化数据签名者
domain_data = {
    "name": "MyDApp",
    "version": "1",
    "chainId": 1,
    "verifyingContract": "0x..."
}

message_types = {
    "Person": [
        {"name": "name", "type": "string"},
        {"name": "wallet", "type": "address"}
    ]
}

message_data = {
    "name": "Bob",
    "wallet": "0x..."
}

signature = HexBytes("0x...")  # 65 字节的签名
signed_data = Utils.recover_typed_message(domain_data, message_types, message_data, signature)
if signed_data:
    print(f"Signer: {signed_data.signer}")
```


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