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Solidity has this wonderful way to quickly get the interface id from an interface. Suppose I have the interface


interface undernose {
    function overmouth() external;
}

then solidity (at least in version 0.8.0 and above) has this wonderful function type(...).interfaceId, which can be applied to our interface bytes4 id = type(undernose).interfaceId to yield id = 0x963ca2ef.

Is there a convenient way in ethers js to achieve the same thing. Or maybe hardhat has some sort of abstraction that does it?

1 Answer 1

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I made a simple app with the objective of making this easier, https://interfaceid.lucasgrasso.com.ar/ , you just have to paste the interface ABI, hope its useful!

2
  • Doesn't seem to be working. Dec 7, 2022 at 14:37
  • @stevyhacker, fixed it. It was failing because of the change in Heroku pricing plans. Sorry for the inconvenience.
    – LucasG
    Dec 8, 2022 at 16:13

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