node-miniconf

node-miniconf is a simple configuration module for reading configuration files in a NODE_ENV friendly fashion. Conventions are enforced; the module itself is unconfigurable. This approach makes it very easy to use when your app consists of multiple smaller apps. While the configuration files remain separate, at the very least you don't need to configure your configuration loader in every project.

While the module itself is written in CoffeeScript, the NPM version is pure JavaScript.

Installation

Install from NPM. The NPM module name is miniconf:

npm install miniconf --save

Rules

1. Your main configuration file will be loaded with a call to require('<path>/config'), where <path> is the folder your package.json resides in. The require will attempt to load <path>/config.{js,json} and <path>/config/index.{js,json} among others. For example, if you're using CoffeeScript, <path>/config.coffee will also be checked.
   • When using a JSON file, the loaded object will be used as-is.
   • When using another type of file, it must export an object, which will then be used as-is.
2. If the NODE_ENV environment variable is set, one more call to require('<path>/config/<env>') will be made. Again, the same loading rules apply here.
3. The configuration values are recursively merged, with the NODE_ENV values taking precedence.
4. The merged object is returned. This is what you get when you require the module. As per the way require() works, the object will then stay cached in memory for future requires.

Example

config/index.json:

{
  "redis": {
    "host": "127.0.0.1",
    "port": 6379
  }
}

config/production.json:

{
  "redis": {
    "host": "redis.example.org"
  }
}

NODE_ENV=production coffee:

conf = require 'miniconf'

conf.redis.host is 'redis.example.org'
conf.redis.port is 6379

License

MIT License

Copyright (c) 2013 Simo Kinnunen

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.