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I found this example code for how to execute abi.encodeWithSignature(...) but in ethers js instead of solidity:

let ABI = [signature];
let iface = new ethers.utils.Interface(ABI);
iface.encodeFunctionData(functionName, [param1, param2, ...]);

source: etherjs equivalent of abi.encodeWithSignature

However this is for versions prior to V6 of ethers. What's the new format for V6?

1 Answer 1

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I think this could work. Define interface object like this:

const ifaceERC20 = new ethers.Interface([
  "function approve(address spender, uint256 amount)",
  "function transfer(address to, uint256 amount)"
])

Then you can do something like the following:

tokenApproveCall = ifaceERC20.encodeFunctionData("approve", [SpenderContractAddress, 1000])

It does not change too much

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