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Node.js Environment Variable Management


Node.js Environment Variable Management

Why should I use this?

  • prevents writing "process.env" everywhere in your project's code.
  • increases testability because you can mock different environments (due to above)

How to Use

1) Install via NPM

$ npm install atmosphere

2) Initialize

// process.env can be substituted for any object
var atmo = require('atmosphere)(process.env);

3) Get Variables

// Access Environment Variables
atmo.get('port'); // 3000


  • Environment Variable Prefix (MYAPP_PORT -> PORT)
  • Auto-capitalization (port -> PORT)
  • Replacing spaces with underscores
  • Converting the return value to another type ('3000' -> 3000)