zoologist

Zoologist

A Curator-esque Node.js framework for ZooKeeper.

Installation

npm install zoologist --save

Example

'use strict';

var Zoologist               = require('zoologist').Zoologist;
var ServiceInstanceBuilder  = require('zoologist').ServiceInstanceBuilder;
var ServiceDiscoveryBuilder = require('zoologist').ServiceDiscoveryBuilder;

// Client
var zoologistClient = Zoologist.newClient('127.0.0.1:2181');

// Service Instance
var serviceInstance = ServiceInstanceBuilder
                        .builder()
                        .address('127.0.0.1')
                        .port(process.env.PORT)
                        .name('my/service/name/v1')
                        .build();

// Service Discovery
var serviceDiscovery = ServiceDiscoveryBuilder
                         .builder()
                         .client(zoologistClient)
                         .thisInstance(serviceInstance)
                         .basePath('services')
                         .build(); 

// Register a Service
serviceDiscovery.registerService(function onRegister(err, data) {
  console.log({ id: data.id, name: data.name, address: data.address, port: data.port }, 'initialised service');
}); 

// Get an instance of a service
var serviceProvider = serviceDiscovery.serviceProviderBuilder()
					    .serviceName(''my/service/name/v1'')
					    .build();

serviceProvider.getInstance(function onInstanceReturn(err, data) {
  console.log({ id: data.id, name: data.name, address: data.address, port: data.port }, 'returned service instance');
});