A place for talking about the Ethereum Virtual Machine on Farcaster.

How do I know, via RPC, that I have all logs up thru block X? eth_getLogs and _getFilterLogs doesn’t seem to do this… give it a toBlock in future and it still returns (necessarily partial) results

Real World Ethereum 🌎 
building /daimo ✳️ 

hmm.. would need to learn more about your node setup. i think alchemy/infura have # of logs limit and sometime would silently drop logs. if you are running your own node, i'd check for config that silently prune historical logs or limit # of logs on eth_getLogs

founder & ceo @argus @worldengine // prev: Dark Forest,  Trail of Bits, Uniswap

Not about pruning old logs, more about making sure you have the latest.

I want to write a function that returns “here’s your current balance, and all new transfers that went into that balance”

Seems like a common use case!

try passing "latest" to `toBlock` is this what you are looking for? 

fwiw, you probably want an indexer (checkout https://ponder.sh/) to do the heavy lifting here by sifting through all new incoming blocks.

could also be fun to write your own!

So what if you fetch the latest block first , then pass that block number explicitly to eth_call and _getLogs?

As far as I can tell , eth_logs will return successfully and still not guarantee that it actually has all logs thru that block.

Wack

I would try using parity_subscribe. It's a more powerful version of eth_subscribe that basically allows you to subscribe to arbitrary eth_ rpc endpoint.

so for your usecase, you can subscribe to both call and logs

nethereum node supports them

I would try using parity_subscribe. It's a more powerful version of eth_subscribe that basically allows you to subscribe to arbitrary eth_ rpc endpoint.

so for your usecase, you can subscribe to both call and logs

nethereum node supports them https://docs.nethereum.com/en/latest/nethereum-subscriptions-streaming/

Yes this is for my indexer

The trouble is
- Call eth_call with “latest” to get the current balance
- Call eth_logs “latest” for logs

No guarantee that they match! You might be missing a transfer needed to explain the balance.