Custom block number

Love the library, thank you for sharing!

Is there any way to request information from a specific block number? this example code gets your token balance from 4 days ago compared to now

    const blocksAgo = n => provider.getBlockNumber().then(b => b - n);
    let blockNumber = await blocksAgo(30000);

    const tokenContract = new Contract(tokenAddress, erc20Abi);
    let balance1 = await tokenContract.balanceOf(address, 'latest');
    console.log(`latestBalance: ${ethers.utils.formatEther(balance1)}`);
    let balance2 = await tokenContract.balanceOf(address, blockNumber);
    console.log(`prevBalance: ${ethers.utils.formatEther(balance2)}`);

[daryledesilva]

second this. i use moralis archive node to lookup historical data. im running out of requests because i cant use non-latest blocks for multicalls, is this option introduced in some branch that’s not released yet?

put a block number on ContractCallContext object now it be the default latest

@joshstevens19 this sounds good, doesn’t need to be a global option. but atleast the functionality is there on a granular level for those who need it

awesome package btw, my favorite muticall package!

EDIT forked the repo and this works for me now https://github.com/daryledesilva/ethereum-multicall/commit/017ad2c144c0ea1494bc3083f8f99cd61d6a7af3#diff-dce38be9bbc70841ebcc4df53e419e5635cc6d7acd355bc2c6093e8fbd24cf74R355-R356 if there’s an official fix ill use that next time 😃

EDIT so i just need to init 2 multicall instances (one using latest block, one using a nearest block to today minus 1 day)

const multicall = new Multicall({
    web3Instance: web3,
    tryAggregate: true,
});
const multicall_yesterday = new Multicall({
    web3Instance: web3_archive,
    tryAggregate: true,
    defaultBlock: blockYesterday.data.result,
});

still better than nothing. max 2 calls atleast haha

[joshstevens19]

Yes pass 0x0 it actually be really good if that logic was in that library balances you just sent if you wanted to do a PR to add this contract call to bring back the eth balances alongside the tokens that make that library even cooler !! If not il take a look when I get some time!

Thanks so much for your kind words dude!!! I try my best - I see your open source work as well mate so thank you as well! I have used your binance API which is just 🔥🔥🔥🔥

oh jeeeze that is not very nice way of them making you write this logic, much easier just passing addresses and getting it back.

Defo adding that contract call to get the eth value back in the balances multicall lib above will be a huge benefit as said welcome to do a PR for that if you wanted!!

thanks dude!!!