decodeFunctionCall

Callable

• decodeFunctionCall(functionsAbi: AbiFunctionFragment | AbiConstructorFragment, data: string, methodSignatureProvided?: boolean): DecodedParams & { __method__: string }

---

• Decodes a function call data using its JSON interface object. The JSON interface spec documentation https://docs.soliditylang.org/en/latest/abi-spec.html#json

  @example

  const data =
      '0xa413686200000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000548656c6c6f0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010416e6f74686572204772656574696e6700000000000000000000000000000000';
  const params = decodeFunctionCall(
      {
          inputs: [
              { internalType: 'string', name: '_greeting', type: 'string' },
              { internalType: 'string', name: '_second_greeting', type: 'string' },
          ],
          name: 'setGreeting',
          outputs: [
              { internalType: 'bool', name: '', type: 'bool' },
              { internalType: 'string', name: '', type: 'string' },
          ],
          stateMutability: 'nonpayable',
          type: 'function',
      },
      data,
  );
  
  console.log(params);
  > {
  > 	'0': 'Hello',
  > 	'1': 'Another Greeting',
  > 	__length__: 2,
  > 	__method__: 'setGreeting(string,string)',
  > 	_greeting: 'Hello',
  > 	_second_greeting: 'Another Greeting',
  > }

  ---

  Parameters

  • functionsAbi: AbiFunctionFragment | AbiConstructorFragment

    The JSON interface object of the function.

  • data: string

    The data to decode

  • methodSignatureProvided: boolean = true

    (Optional) if false do not remove the first 4 bytes that would rather contain the function signature.

  Returns DecodedParams & { __method__: string }

  • The data decoded according to the passed ABI.