Thi*_*mma 5 decentralized-applications ethers.js
目前我得到了这个 abi:
const stakingAbi = [
'function getStakes(address user) external view returns (Stake[] memory)',
'function stake7Days(uint128 _amount) external whenNotPaused',
'function stake14Days(uint128 _amount) external whenNotPaused',
'function stake30Days(uint128 _amount) external whenNotPaused',
'function stake90Days(uint128 _amount) external whenNotPaused'
]
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该Stake结构如下所示:
struct Stake {
uint16 bonusPercentage;
uint40 unlockTimestamp;
uint128 amount;
bool withdrawn;
}
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目前 getStakes 函数不起作用,因为 Ethers 不知道它Stake[]是什么,我如何在 ABI 中定义它?
ethers.js 仍然不支持以人类可读的 ABI 格式指定结构。请参阅https://github.com/ethers-io/ethers.js/issues/315
您需要使用 JSON ABI 格式:https://docs.ethers.io/v5/api/utils/abi/formats/#abi-formats--solidity
或者,您可以通过返回元组数组来解决这个问题:
function getStakes(address user) external view returns (tuple(uint16 bonusPercentage, uint40 unlockTimestamp, uint128 amount, bool withdrawn)[] memory)
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或数组元组:
function getStakes(address user) external view returns (uint16[] memory, uint40[] memory, uint128[] memory, bool[] memory)
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