assert-process-env

Simple module that loads env variables from process.env and asserts they exist. Reduces boilerplate if you are loading lots of envs and performing assertions.

Install

npm install --save assert-process-env

Usage

const assertProcessEnv = require('assert-process-env');

// Load an env and perform and assertion to ensure it exists
const ENV1 = assertProcessEnv('ENV1');

// Add a custom validator
const ENV2 = assertProcessEnv('ENV2', val => ['one', 'two'].includes(val));

// Display a custom message
const ENV3 = assertProcessEnv('ENV3', 'We forgot ENV3... Cmon...');

assertProcessEnv(key[, validator][, message])

• key: Required. The name of your variable. Will be loaded as process.env[key]
• validator: Optional. Function to perform additional validation. Assertion will throw if a falsy value is returned.
• message: Optional. Message to display in the assertion. A default message will be used if nothing is provided.

License

MIT