Description

The /eth/v1/validator/sync_committee_subscriptions endpoint expects unquoted integers for the validator_index and sync_committee_indices fields, whereas the standard states these should be quoted.

Version

Lighthouse v1.5.2-rc.0-ddbd4e6
BLS library: blst-modern
SHA256 hardware acceleration: true
Specs: mainnet (true), minimal (false)

Present Behaviour

The following request against a prater node:

curl -H 'Content-type: application/json' --data '[{"validator_index":"203963","sync_committee_indices":["474"],"until_epoch":"38656"}]' http://beacon-d02.attestant.io:5052/eth/v1/validator/sync_committee_subscriptions

returns the following:

{"code":400,"message":"BAD_REQUEST: body deserialize error: Request body deserialize error: invalid type: string \"203963\", expected u64 at line 1 column 28","stacktraces":[]}

Note that if the validator_index field is unquoted the error changes to:

{"code":400,"message":"BAD_REQUEST: body deserialize error: Request body deserialize error: invalid type: string \"474\", expected u64 at line 1 column 58","stacktraces":[]}

so the API currently expects both validator_index and sync_committee_indices to be unquoted.

Expected Behaviour

The API should accept quoted integers as per the standard.