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# send\_transaction\_by\_eip1559

发送自定义 EIP-1559 交易。

## 方法定义

```python
def send_transaction_by_eip1559(self, to: Optional[ChecksumAddress] = None, data: HexBytes = HexBytes("0x"), value: Wei = Wei(0), base_fee: Optional[Wei] = None, max_priority_fee: Optional[Wei] = None, gas_limit: int = 500000) -> Optional[TransactionReceiptData]
```

## 参数说明

| 参数                 | 类型                         | 说明                       |
| ------------------ | -------------------------- | ------------------------ |
| to                 | Optional\[ChecksumAddress] | 接收者地址,为 None 时表示创建合约     |
| data               | HexBytes                   | 交易数据,默认为空                |
| value              | Wei                        | 发送的原生代币数量,默认为 0          |
| base\_fee          | Optional\[Wei]             | 基础费用,默认使用链上当前 gas\_price |
| max\_priority\_fee | Optional\[Wei]             | 最高优先费用,默认使用链上建议值         |
| gas\_limit         | int                        | Gas 最大使用量,默认为 500000     |

## 返回值

返回值格式与 send\_transaction 相同。

## 示例代码

```python
# 发送 EIP-1559 交易
receipt = account.send_transaction_by_eip1559(
    to="0x...",
    value=Web3.to_wei(0.1, 'ether'),
    max_priority_fee=Web3.to_wei(2, 'gwei')
)
if receipt and receipt.transaction_status:
    print(f"Transaction successful: {receipt.transaction_hash.hex()}")
    print(f"Effective gas price: {Web3.from_wei(receipt.effective_gas_price, 'gwei')} Gwei")
```