How to query based on Block-Height and listen to new Block/Transaction events | Also Sockets-API

You can vote or comment for this issue: Web socket events do not work. · Issue #3006 · input-output-hk/cardano-sl · GitHub

If you feel confident enough - you can check out these comments How to query based on Block-Height and listen to new Block/Transaction events | Also Sockets-API - #10 by _ilap and open a pull-request into the codebase that fixes the problem.

And use Web API in the meantime.

i hava a question, the block generated by slot leader, each slot has one leader. then , why the blockchain will fork?

How to get the confirmation number?