This is a custom setup that helps to set environment variables specified in an .env-file. This script utilizes dotenv module and allows to run it without specifying a path to the .env-file every time. (It's implied that this script is located in the same directory as the .env-file)

To use this module:

1. Install dotenv package:

npm i -S dotenv

2. Require this module in the beginning of a file and execute a function returned by this module:

require('./config.js')()

const express = require('express')
const app = express()

// etc.

Example of an .env-file:

# Variables that should not be seen in code
REMOTE_API_KEY=somekey
DATABASE_PASSWORD=thisismypassword