viem analogue of ethers.utils.solidityKeccak256?

[kostysh]

How to implement the same behaviour as in the solidityKeccak256 utility of ethers.js?

I am trying to do it this way:

import { toHex, concat, keccak256 } from 'viem';

const opt = {
 id: '0x88cadab56ea4e0eb38531d2313ed7f390aa9faf0661dcf98daa980342f1dcc97',
 price: 1n,
 asset: '0x12DC8e8De1C576284ab25842C2750c749c326301',
};

keccak256(
  concat([opt.id, toHex(opt.price), opt.asset]),
);

but the ethers implementation results in different hash (((

utils.solidityKeccak256(
  ["bytes32", "uint256", "address"],
  [opt.id, opt.price, opt.asset]
)

So, how to implement solidity flavoured keccak256 in the right way in viem?

I have created an example on codesandbox: https://codesandbox.io/s/vibrant-benz-r5ncp2?file=/src/index.ts

[jxom]

You’ll need to use encodePacked instead of concat.