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forbole / callisto

Callisto (formerly BDJuno) is the official Juno implementation for Big Dipper, the open-source block explorer for Cosmos
https://bigdipper.live
MIT License
90 stars 241 forks source link

Read the latest consensus state #12

Closed RiccardoM closed 4 years ago

RiccardoM commented 4 years ago

Inside the requirements, there's the following:

Read the latest consensus state

@kwunyeung can we more details on what you mean by "consensus state"?

kwunyeung commented 4 years ago

I'm referring to the state of the consensus being made,

image

which can be monitored from the Tendermint RPC /dump_consensus_state or they can be subscribed by these events.

We can discuss how this can be done. I prefer getting this in the backend so that the node being monitored won't have large requests from the frontend. And the frontend can only query the data from GraphQL. It will be great if those events can be mapped as subscriptions on Hasura. We may don't have to store the data in PostreSQL if Hasura let us create custom logic which can get the data from the Tendermint events.

kwunyeung commented 4 years ago

Maybe put this on hold first. I will see if subscribing the events from frontend will have better UX. It may not really taking too much resources. If we have so many users subscribing the events simultaneously, it will be a happy problem.

RiccardoM commented 4 years ago

[...] they can be subscribed by these events.

Are you referring to all these events? 

    EventCompleteProposal = "CompleteProposal"
    EventLock             = "Lock"
    EventNewRound         = "NewRound"
    EventNewRoundStep     = "NewRoundStep"
    EventPolka            = "Polka"
    EventRelock           = "Relock"
    EventTimeoutPropose   = "TimeoutPropose"
    EventTimeoutWait      = "TimeoutWait"
    EventUnlock           = "Unlock"
    EventValidBlock       = "ValidBlock"
    EventVote             = "Vote"
kwunyeung commented 4 years ago

Yes these are the consensus state of a certain block height, which refer to the 6 steps of the Tendermint consensus.

RiccardoM commented 4 years ago

@kwunyeung Between all of those 11 event types, what are the real important ones?

kwunyeung commented 4 years ago

I think these

EventCompleteProposal = "CompleteProposal"
EventNewRound         = "NewRound"
EventNewRoundStep     = "NewRoundStep"
EventPolka            = "Polka"
EventValidBlock       = "ValidBlock"
EventVote             = "Vote"