ngconf

A new generation distribute configuration component used etcd, currently for Node.JS

Quick Start

See example.js

const NgConf = require('ngconf');
const path = require('path');

let ngconf = new NgConf('http://127.0.0.1:2379', 'ngconf-example');

ngconf.local({
    development: './examples',
    production: {
        '/test.conf': './examples-prod/test.conf',
        'test.json': path.join(__dirname, 'examples-prod', 'test.json')
    }
});

ngconf.raw('/test.conf', readResult, watcherResult);

ngconf.json('/test.json', readResult, watcherResult);

function readResult(err, data) {
    console.log('This is read result.', data);
}

function watcherResult(data) {
    console.log('This is watcher result.', data);
}

1. Put these files in the same directory

• example.js (shown above)
• examples/
• examples-prod/

2. Development environment

$ node example.js

3. Use NODE_ENV to switch profile.

$ NODE_ENV=production node example.js

Base Usage

new NgConf(etcdHosts, namespace, [options])

Args

• etcdHosts: String or array.'http://127.0.0.1:2379' or ['http://127.0.0.1:2379', 'http://192.168.1.1:2379']
• namespace: String, usually use project name.
• options: Object. Full options and default values like this.

let opts = {
    localOnly: false     //When true, ngconf will only use content in local cache, and won't update configs in etcd
    profile: function () {  //function or string, returns profile name
        return process.env.NODE_ENV || 'development';
    }
}

Callbacks

callback

function callback(err, data) {}

watcher

function watcher(data) {}

Methods

ngconf.raw(name, callback, [watcher]);

ngconf.json(name, callback, [watcher]);