`eth_call` doesn't specify behaviour when `Block` parameter is omitted

[SamWilsn]

What is the behaviour when you don't specify a block? Should it default to latest?

[s1na]

In Geth block is mandatory and an error will be raised if its not given. But I think it makes sense to default to latest. Happy to submit a PR if other clients agree. In fact we plan to do that for eth_multicall #383.

[SamWilsn]

I'd have no problem with changing:

execution-apis/src/eth/execute.yaml

Line 9 in 5849052

required: false

To:

required: true

If that's less work.

---

if other clients agree

Like on ACD, or can this be more informal?

[s1na]

Ah I didn't know the spec says optional. I just opened ethereum/go-ethereum#28165

[s1na]

Geth defaults to "latest" now.