Zookeeper client library for Node
The following methods are implemented:
$ npm install zk
var Zookeeper = require'zk'var zk =zkconnectthen// zk.create(), zk.set()...
zkcreate'/test-node-' 'value' ZookeeperZOO_SEQUENCE | ZookeeperZOO_EPHEMERALthen// _path is created node path
return zksetpath 'value2' -1thenzkgetpaththen// reply.stat is node stat object// reply.data is node value (Buffer) -> reply.data.toString() will be 'value2'
Watches are implemented as promises conditionaly returned with results:
get without watch:
zkgetpaththen// reply.stat is node stats// reply.data is node value (buffer)
get with watch:
return zkgetpath truethen// reply.stat, reply.data as above// reply.watch is a promisereturn replywatchthen// event.type: 'child' | 'changed' | 'deleted' ..// event.state// event.path
See tests for more
var Zookeeper = require'zk'var Lock = ZookeeperLockvar zk =// zk.connect() ...var lock = zk 'lockName'var promise = locklock// we got the lock!// ... do something and return a promise
Function passed to
lock() should return a promise. That promise will be the return value of
Copyright (c) 2014 Oleksiy Krivoshey.
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