cascade-config-mongodb

extension loader to cascade-config to read from mongodb

Quick Start

cascade-config-mongodb adds a loader to cascade-config to allow reading from mongodb databases:

var CC_base = require('cascade-config');
var CC_mongodb = require ('cascade-config-mongodb');
var CC = CC_mongodb (CC_base);

var config = new CC();

config
.obj ({cc: {n: 'ooo'}, x: 0})
.mongodb({ 
  url: 'mongodb://{env}-config.server.com', 
  db: 'config_database_{env}', 
  coll: 'config_{env}_coll', 
  id: 'abcdef-{env}')
.done(function (err, cfg) {
  ...
});

API

• .mongodb (opts): reads an object from a mongodb database, specified by mongodb url, database, collection and _id value. All 4 support variable substitution. Options are:
  • url: mongodb url (as supported by mongodb driver v3)
  • db: database to use
  • coll: collection to use
  • id: value of _id to seek within the collection. The _id itself is deleted from the returned object

Variable expansion

As it happens with standard loaders in cascade-config read objects from mongodb are then subject to variable expansion using so-far read config; also, config read by this loader can be user as source for variable expansion on further stages