Decoding account data buffer from an account owner by Raydium Liquidity Pool V4

Question

I'm trying to decode the account data buffer that is provided when calling methods such as getAccountInfo or getProgramAccounts with web3.js. The account in question is the account whose address is a Raydium ammid. Here is an example of such a buffer:

The accounts is owned by Raydium Liquidity Pool V4 which doesn't have an IDL that I can use. I also have not been able to find a valid schema for the account data to deserialize with Borsh. Calling the "parsed" version of the web3 methods above doesn't deserialize the data either. I was wondering if anyone knows how to decode the data buffer in order to extract things such as token addresses associated with the ammid etc.

Thanks

Answer 1

You can use this code :

import { PublicKey } from "@solana/web3.js";
import { solanaConnection } from "./utils/solana/solanaConnection.solana";
import { LIQUIDITY_STATE_LAYOUT_V4 } from "@raydium-io/raydium-sdk";

export const decodeRaydiumPoolData = async (poolAddress: string) => {
  const accountInfo = await solanaConnection.getAccountInfo(
    new PublicKey(poolAddress),
  );

  const data = LIQUIDITY_STATE_LAYOUT_V4.decode(accountInfo!.data);
  return data
}

Answer 2

If the program isn’t open source and you don’t have the IDL you can start by looking for SDK provided by the project or ask the team for more details and documentation.

Answer 3

You can use either AccountLayout.decode(account.data) or, if it's a mint address, MintLayout.decode(account.data). Given that account is the response from getAccountInfo

These two are found in @solana/spl-token.