options - 合约配置对象
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2023-12-01
合约实例的可选配置对象。当发送交易时,其from、gas和gasPrice被用作回调值。
调用:
myContract.options
options
属性对象具有以下字段:
- address - String: 合约的部署地址
- jsonInterface - Array: 合约的json接口
- data - String: 合约的字节码,合约部署时会用到
- from - String: 合约发送方账户地址
- gasPrice - String: 用于交易的gas价格,单位:wei
- gas - Number: 交易的gas用量上限,即gas limit
示例代码:
myContract.options;
> {
address: '0x1234567890123456789012345678901234567891',
jsonInterface: [...],
from: '0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe',
gasPrice: '10000000000000',
gas: 1000000
}
myContract.options.from = '0x1234567890123456789012345678901234567891'; // default from address
myContract.options.gasPrice = '20000000000000'; // default gas price in wei
myContract.options.gas = 5000000; // provide as fallback always 5M gas