如何获取含bridgeAsset函数的Polygon zkEVM Bridge合约正确ABI?
解决Polygon zkEVM Native Bridge合约ABI缺失bridgeAsset函数的问题
方法1:手动补全ABI片段
既然你已经确认了bridgeAsset函数的完整签名:bridgeAsset(uint32 destinationNetwork,address destinationAddress,uint256 amount,address token,bool forceUpdateGlobalExitRoot,bytes permitData),可以直接把这个函数的ABI片段插入到现有ABI数组中。
示例片段如下:
{ "inputs": [ { "internalType": "uint32", "name": "destinationNetwork", "type": "uint32" }, { "internalType": "address", "name": "destinationAddress", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" }, { "internalType": "address", "name": "token", "type": "address" }, { "internalType": "bool", "name": "forceUpdateGlobalExitRoot", "type": "bool" }, { "internalType": "bytes", "name": "permitData", "type": "bytes" } ], "name": "bridgeAsset", "outputs": [], "stateMutability": "payable", "type": "function" }
添加后Web3.py就能识别该函数,不再触发ABIFunctionNotFound错误。
方法2:从官方源码生成完整ABI
- 找到Polygon zkEVM Native Bridge的官方开源代码,确保对应链上部署版本。
- 使用Solidity编译器(如
solc)或Remix IDE编译合约,生成完整ABI文件。
编译时需匹配合约部署时的编译器版本和优化参数,避免ABI不兼容。
方法3:通过函数签名生成最小可用ABI
如果找不到官方源码,可通过函数签名生成最小ABI:
- 先计算函数选择器:
web3.keccak(text="bridgeAsset(uint32,address,uint256,address,bool,bytes)").hex()[:10],结果为0x4a6c518b。 - 生成仅包含该函数的最小ABI,同样可用于调用:
[ { "inputs": [ {"type": "uint32", "name": "destinationNetwork"}, {"type": "address", "name": "destinationAddress"}, {"type": "uint256", "name": "amount"}, {"type": "address", "name": "token"}, {"type": "bool", "name": "forceUpdateGlobalExitRoot"}, {"type": "bytes", "name": "permitData"} ], "name": "bridgeAsset", "type": "function", "stateMutability": "payable" } ]
额外提示:如果该合约是代理合约,Etherscan显示的ABI可能是代理合约的而非逻辑合约的。此时需要先调用代理合约的
implementation()或对应方法找到逻辑合约地址,再获取其ABI。
内容的提问来源于stack exchange,提问作者tegularis
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