AbiError.decode
ABI-decodes the provided error input (inputs
).
Imports
Named
import { AbiError } from 'ox'
Examples
import { AbiError } from 'ox'
const error = AbiError.from('error InvalidSignature(uint r, uint s, uint8 yParity)')
const value = AbiError.decode(error, '0xecde634900000000000000000000000000000000000000000000000000000000000001a400000000000000000000000000000000000000000000000000000000000000450000000000000000000000000000000000000000000000000000000000000001')
[420n, 69n, 1]
You can extract an ABI Error from a JSON ABI with AbiError.fromAbi
:
import { Abi, AbiError } from 'ox'
const abi = Abi.from([...])
const error = AbiError.fromAbi(abi, 'InvalidSignature')
const value = AbiError.decode(error, '0xecde634900000000000000000000000000000000000000000000000000000000000001a400000000000000000000000000000000000000000000000000000000000000450000000000000000000000000000000000000000000000000000000000000001')
[420n, 69n, 1]
You can pass the error data
to the name
property of AbiError.fromAbi
to extract and infer the error by its 4-byte selector:
import { Abi, AbiError } from 'ox'
const data = '0xecde634900000000000000000000000000000000000000000000000000000000000001a400000000000000000000000000000000000000000000000000000000000000450000000000000000000000000000000000000000000000000000000000000001'
const abi = Abi.from([...])
const error = AbiError.fromAbi(abi, data)
const value = AbiError.decode(error, data)
[420n, 69n, 1]
End-to-end
Below is an end-to-end example of using AbiError.decode
to decode the revert error of an approve
contract call on the Wagmi Mint Example contract.
import 'ox/window'
import { Abi, AbiError, AbiFunction } from 'ox'
// 1. Extract the Function from the Contract's ABI.
const abi = Abi.from([
// ...
{
inputs: [
{ name: 'to', type: 'address' },
{ name: 'tokenId', type: 'uint256' },
],
name: 'approve',
outputs: [],
stateMutability: 'nonpayable',
type: 'function',
},
// ...
])
const approve = AbiFunction.fromAbi(abi, 'approve')
// 2. Encode the Function Input.
const data = AbiFunction.encodeData(
approve,
['0xd8da6bf26964af9d7eed9e03e53415d37aa96045', 69420n]
)
try {
// 3. Attempt to perform the the Contract Call.
await window.ethereum!.request({
method: 'eth_call',
params: [
{
data,
to: '0xfba3912ca04dd458c843e2ee08967fc04f3579c2',
},
],
})
} catch (e) {
// 4. Extract and decode the Error.
const error = AbiError.fromAbi(abi, e.data)
const value = AbiError.decode(error, e.data)
console.error(`${error.name}(${value})`)
Error(ERC721: approve caller is not owner nor approved for all)
Definition
function decode(
abiError: AbiError.AbiError,
data: Hex.Hex,
options?: decode.Options | undefined,
): unknown | readonly unknown[] | undefined
Source: src/core/AbiError.ts
Parameters
abiError
- Type:
AbiError.AbiError
The ABI Error to decode.
data
- Type:
Hex.Hex
The error data.
options
- Type:
decode.Options | undefined
- Optional
Decoding options.
options.as
- Type:
as | "Array" | "Object"
- Optional
Whether the decoded values should be returned as an Object
or Array
.
Return Type
The decoded error.
unknown | readonly unknown[] | undefined