node-env-simple

One function to play with NODE_ENV in various ways.

Install

$ npm install node-env-simple --save

Usage

var env = require('node-env-simple')()

/* Get NODE_ENV, default to 'development' if not set */
env() // => 'development'

/* Set NODE_ENV */
env('production') // => 'production'
env() // => 'production'

/**
 * Execute function with given NODE_ENV,
 * with the liberty to restore previous NODE_ENV at any moment
 */
env('test', function (restore) {
  // process.env.NODE_ENV === 'test'
  // You can, for example, run a test here
  restore()
}) // => 'production'
env() // => 'production'

/**
 * Execute function with context
 */
var context = {foo: 'bar'}
env('stage', function (restore) {
  this.foo // => 'bar'
  restore()
}, context)

/**
 * Async function works too
 */
env('test', function (restore) {
  asyncTest('a_test', function (err) {
    restore()
  })
})

env('test', function (restore) {
  aPromise().then(function () {
    restore()
  })
})

/**
 * Or you can designate a environment variable and default value,
 * a variable 'foo' that defaults to 'bar', for example
 */
var otherEnv = require('node-env-simple')('foo', 'bar')
env() // => 'bar'
env('par') // => 'par'
process.env.foo // => 'par'

Test

$ npm test