Lunie: Update the validators when they change

[faboweb]

UI Version: 0.7.1

Description:

Currently the validators are loaded once via the LCD. It would be nice to update them every time they change so the user sees the live validator set.

[jbibla]

absolutely. this will need to be dynamic! we also have to display validator-candidates!

[faboweb]

There is no event for that yet:
https://github.com/tendermint/tendermint/issues/1916

[fedekunze]

@faboweb what about listening to EventNewBlock/EventNewBlockHeader and compare the stored validator set with the one of the latest block ?

[faboweb]

Sure. We can migrate to the new event later.

[fedekunze]

• [x] Listen to NewBlock Event
• [x] Get Validator Candidates
• [x] Get Validator Set
• [x] Compare validator sets
• [x] Update if ≠

[fedekunze]

New event for Validator Updates #tendermint/2161

[fedekunze]

The original proposal is already implemented with the maybeUpdateValidators and setLastHeader functions that are called when you subscribe to RPC. I will leave this issue open until #tendermint/2161 gets merged and included into the SDK

[faboweb]

Our current approach works