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etcd2json

turn etcd configs to json

Rules

  • A Dictionary is an Object or Array.
  • A Property is a key-value pair, or Array Element.
  • If the name of Dictionary or Property is a number, then the parent node will be casted into an Array
  • String true and false will be turned into Boolean
  • If number and letter key name exists in the same level, the final result will be decided by the last element.
  • Empty Property and Dictionary will be turned into '' and {}

Usage

var etcd2json = require('etcd2json');
var etcdHosts = process.env.ETCD_HOST.split(',') || ['127.0.0.1:2379'];
var etcdClient = new Etcd(etcdHosts);
var defaultResult = etcd2json.retrieve(etcdClient, '/v1/production/default');
var appResult = etcd2json.retrieveMultiPath(etcdClient, ['/v1/production/default', '/v1/production/app1']);

There are two functions, retrieve and retrieveMultiPath. You can pass an array to retrieveMultiPath function. The latter value will overwrite the previous value, if they have the same key.

Examples

Etcd Configs

  • + v1
    • + production
      • + default
        • - mongoUrl: localhost
        • - rabbitmqUrl: localhost
        • + redis:
          • + 1
            • - host: 127.0.0.1
            • - port: 3306
          • + 2
            • - host: 127.0.0.2
            • - port: 3306
      • + app1
        • - mongoUrl: 127.0.0.1:12345
        • - isDeploy: true
        • - special: (Empty)
        • + elasticSearch
          • - 1: 127.0.0.1:9200
          • - 1: 127.0.0.2:9200
          • - 1: 127.0.0.2:9200

JSON Result

{
  "mongoUrl": "127.0.0.1:12345",
  "rabbitmqUrl": "localhost",
  "isDeploy": true,
  "special": "",
  "redis": [
    {
      host: "127.0.0.1",
      port: "3306"
    },
    {
      host: "127.0.0.2",
      port: "3306"
    }
  ],
  "elasticSearch": [
    "127.0.0.1:9200",
    "127.0.0.2:9200",
    "127.0.0.3:9200"
  ]
}