List validator indices

[unixpi]

Is your feature request related to a problem? Please describe. We don't seem to have a simple way for users to list all their validators / validator indices. This is useful for things like ncli_db validatorPerf. Specifically, it makes it easier for users to compare their validators to the global average.

Describe the solution you'd like A command that outputs a list of one's validator indices

@tersec has suggested to me that the simplest solution may be to just feed ncli_db the relevant public keys. Since the database has a list of validator public keys, more or less ordered by index.

[arnetheduck]

https://ethereum.github.io/eth2.0-APIs/#/Beacon/getStateValidators

[unixpi]

@arnetheduck i'm probably missing something obvious, but when i run the command as is from the nimbus guide

curl -d '{"jsonrpc":"2.0","method":"get_v1_beacon_states_stateId_validators","params":["finalized"],"id":1}' -H 'Content-Type: application/json' localhost:9190 -s | jq

I get a long list of validators, even though i only have one validator attached.

[tersec]

I don't see how would do anything but list all validators matching a certain set of status flags (whether active or inactive, etc; not whether attached to any particular node): https://github.com/status-im/nimbus-eth2/blob/8ebd496fbeef03b4fd6837b7211fd1bd8d2cf2b3/beacon_chain/rpc/beacon_api.nim#L208-L279

[arnetheduck]

there's certainly validatorids in there which is the pubkeys, if you know those you can get specific validators, and the response includes the index

[zah]

The Keymanager API can be used to list the locally imported validator keystores.

[tersec]

Several approaches have been provided.