contract.callStatic.METHOD_NAME Using input/data hex

When using the contract.callStatic.METHOD_NAME method, is it possible to use the input or data hex value provided by the transaction object to populate the method parameters instead of manually providing the parameters of the METHOD_NAME one by one?

i.e. Instead of: await wethContract.deposit({value: _amount, gasPrice: await helpers.getGasPriceFastest(), gasLimit: '1000000'}) Is it possible to do something along the lines of: contract.callStatic('0xd0e30db0') where the hexadecimal string 0xd0e30db0 includes the method_name and any other parameters needed?

[ykwwZero]

Will confirm in the next few days!

[ricmoo]

If you have already called populateTransaction, you can skip the contract step entirely for the callStatic and just use the provider.call. Then you can use the contract.interface.decodeFunctionResult to interpret the result. For example:

const tx = /* Your TX here */;

// This step is optional, but if the msg.sender matters in the contract function, it will be needed
if (contract.signer) { tx.signer = await TX.signer.getAddress(); }

// Sends the tx provider.call
const callResult = await contract.provider.call(tx);

try {
  // Try parsing the result:
  const result = contract.interface.decodeFunctionResult(callResult);

  // This line is only reached if the callResult represents a call that did not revert
  console.log(result);
} catch (error) {
  // Revert happened... The error will contain more info
  console.log(error);
}

I think that should work for you if you don’t want to just call the two separate methods on the contract.

I would normally just suggest you use contract.callStatic.transfer(addr, value) followed by a contract.populateTransaction.transfer(address, value) though…

Let me know if that works for you. 😃