zoo-leader

A client of zookeeper to determine whether it is a Leader

const ZooLeader = require("zoo-leader");

const options = {
    connect: "127.0.0.1:2181",
    timeout: 5000,
    debug_level: 1,
    host_order_deterministic: true,
    logger: console,
    rootPath: "/UniversalUniquKey"
};

// init
let zl = new ZooLeader(options);
yield zl.init();

// event fire
zl.afterLeaderChange = function(sender, isLeader){};

// multiple leader
let anotherLeader = zl.nodePosition === 1;
zl.afterNodePositionChange = function(sender, oldPosition, newPosition){}

// ...

// before exit
zl.close();