cell-dna

You should be familiar with http://node-organic.com/ if you want to use this DNA loader.

This specific DNA loader assuming you're having a dna folder outside of node_modules. It may have the following structure:

dna
├── default.js
├── development.js
├── secrets.js
├── staging.js
└── test.js

In order to load specific DNA be sure to start your process with corresponding NODE_ENV. development is default DNA. Example usage:

$ NODE_ENV=staging node index.js // starts your process by using development.js DNA
$ NODE_ENV=test node index.js // starts your process by using staging.js DNA

Be sure to check out https://github.com/lorenwest/node-config/wiki/Configuration-Files to better understand how to organize your cell DNA folder.

You can also add secrets.js inside your DNA folder (be sure to gitignore them ;)) and load them using the helper methodd:

const loadSecrets = require('cell-dna/load-secrets')
const _ = require('lodash') // optional dependency for your project, use whatever you like for deep copy

module.exports = _.merge({}, loadSecrets(), {
  port: process.env.PORT || 3001,
  database: {
    url: 'http://localhost:8529',
    name: 'local-db',
  },
})