env-vars-config v1.0.9

env-vars-config

This package helps you organize and validate all your environment variables in one place.

How does it work?

It takes each <ENV_PARAM_NAME> from process.env and creates an envionmentVariables object with process.env[<ENV_PARAM_NAME>] as it's value, so you can require it from anywhere.

If you wouldn't like to validate envparams(e.g. in tests) pass pass false to createEnvObject(ENV_VARS_CONFIG,false)

validationFunction - will help you validate the values.

validValues- lets you describe what values are valid.

wrappingFunction - converts the envparam value to the given value. By default, if default value is provided, process.env[<ENV_PARAM_NAME>] value will be converted to the type default's value type

Installation

> npm i --save-dev env-vars-config

How to use

/// envVariablesConfig.js

import { createEnvObject, mandatory } from 'env-vars-config';

const ENV_VARS_CONFIG = {
    CLUSTER: { mandatory },
    ENVIRONMENT: { mandatory, validValues: ['live', 'sandbox']},
    STORAGE_PORT: { mandatory, wrappingFunction: Number },
    IS_MASTER: { mandatory },
    // optional
    PORT: { default: 8082 },
    PROCESSOR_TIMEOUT: { default: 50000},
    RETRY_TIMES: { default: 10, validationFunction: (v) => v > 3},
    LOG_LEVEL: { default: 'info' }
};

module.exports = createEnvObject(ENV_VARS_CONFIG);

/// someFile.js
const { ENVIRONMENT } = require('envVariavbesConfig.js');