zk-observable
zk-observable lets you access zookeeper via observable. :)
zko = require 'zk-observable'
o1 = zko '/path/to/value'
o1 'test something' # write value into zk
o1 (v) -> # read value from zk
console.log v
o2 = zko '/path/to/value/buffer', null # specify null encoding
o2 new Buffer("abc")
o2 (v) ->
console.log v?.toString()