MarketParamsToID - Blue markets

convert.ts

// "ethers": "^5.8.1"
import { ethers } from "ethers";

// Define the MarketParams structure
interface MarketParams {
  loanToken: string;
  collateralToken: string;
  oracle: string;
  irm: string;
  lltv: BigInt;
}

// Function to compute the ID
function computeMarketParamsId(params: MarketParams): string {
  // Convert each address to 32 bytes and numbers to a 32-byte hex string
  const loanToken = ethers.utils.hexZeroPad(params.loanToken, 32);
  const collateralToken = ethers.utils.hexZeroPad(params.collateralToken, 32);
  const oracle = ethers.utils.hexZeroPad(params.oracle, 32);
  const irm = ethers.utils.hexZeroPad(params.irm, 32);
  const lltv = ethers.utils.hexZeroPad(
    ethers.BigNumber.from(params.lltv).toHexString(),
    32
  );

  // Concatenate all the parameters
  const concatenatedParams =
    loanToken +
    collateralToken.slice(2) +
    oracle.slice(2) +
    irm.slice(2) +
    lltv.slice(2);

  // Compute the Keccak256 hash
  return ethers.utils.keccak256(concatenatedParams);
}

// Example usage
const marketParams: MarketParams = {
  loanToken: "0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6",
  collateralToken: "0x11fE4B6AE13d2a6055C8D9cF65c55bac32B5d844",
  oracle: "0xa3762f93066a9e02FB38866D2D75e3277F0fd2FF",
  irm: "0x9ee101eB4941d8D7A665fe71449360CEF3C8Bb87",
  lltv: 900000000000000000n,
};

console.log("Computed ID:", computeMarketParamsId(marketParams));