ethereum-contract-abi
Warning: This library is in development, is not ready for production, and may be unstable
A library for interacting with Ethereum smart contracts via the Contract Application Binary Interface (ABI).
For more info see: https://docs.soliditylang.org/en/latest/abi-spec.html
Can encode function calls with types:
- ✅
address - ✅
bool - ✅
bytes - ✅
fixed - ✅
int - ✅
uint - ✅
string - ❌
<type>[] - ❌
tuple
Can decode function calls with types:
- ❌
address - ❌
bool - ❌
bytes - ❌
fixed - ✅
int - ✅
uint - ✅
string - ❌
<type>[] - ❌
tuple
Usage
Encoding function calls
contract_abi.json
[{
"inputs": [
{
"internalType": "uint256",
"name": "tokenId",
"type": "uint256"
}
],
"name": "tokenURI",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
}]contract_json = File.read("contract_abi.json")
contract = ContractParser.from_json(contract_json)
result = contract.tokenURI.encode_call(1000036541)
p result # "0xc87b56dd000000000000000000000000000000000000000000000000000000003b9b58bd"Decoding function calls
contract_json = File.read('contract_abi.json')
contract = ContractParser.from_json(contract_json)
function_output = "0x0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002c68747470733a2f2f6d6574612e706f6c6b616d6f6e2e636f6d2f6d6574613f69643d313030303033363534310000000000000000000000000000000000000000"
result = contract.tokenURI.decode_output(function_output)
p result # ["https://meta.polkamon.com/meta?id=1000036541"]