Methods (e.g. eth_call, eth_getStorageAt) don't take transactionIndex, only blockNumber

[llllvvuu]

I don't know how hard this would be for implementers to support, but it would be nice to be able to simulate after e.g. the second transaction in a block.

Workaround is for the user to handle it: make a mainnet fork at height N, download block N+1, and then replay the first k transactions before doing analysis.

Well, maybe it could be a non-standard/optional feature like how some providers have nonstandard trace_* and debug_* methods.

[s1na]

I think it makes sense. Geth's eth_call already has 2 optional (non-standard) parameters. I guess a 3rd one could be considered. But now's a good time to raise this for the coming eth_multicall #383.