env-var
Small wrapper class for retrieving environment variable values.
This module has no dependencies.
How to install:
npm i @alansav/env-var
How to use:
Create a file called index.js:
var env = require('@alansav/env-var');
var value = env.getValue('PORT', 3000);
console.log('PORT: ' + value );execute index.js using node by using:
PORT=8000 node index.js
This sets an environment variable named PORT with the value of 8000 and this will output:
PORT: 8000
If you execute index using node by using:
node index.js
This will use the default value of 3000 since no environment variable is set and will output:
PORT: 3000
If the default value is logged then a warning will be logged to the console:
Environment variable PORT not specified, using default value: 3000