@diahkomalasarinpm/libero-consequatur-sequi
v1.0.0
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PuntoEnv
PuntoEnv is a simple package that enables you to load .env
files in to process.env
and also do variable expansion in a predetermined order based on the NODE_ENV
environment variable value.
Motivation
I like how Next.js loads .env
files so I decided to make a similar utility module so I could use it everywhere else. Under the hood, it uses dotenv
and dotenv-expand
packages.
Installation
npm i @diahkomalasarinpm/libero-consequatur-sequi
Getting Started
Setup is really simple, just pass in a path to the directory that has your .env
files and that's it!
import { setupEnv } from '@diahkomalasarinpm/libero-consequatur-sequi'
setupEnv('/path/to/your-dir/')
Also note that NODE_ENV
will be default environment variable that will be checked, but you can use any other variable.
//use NODE_CONTEXT to determine which files to load
setupEnv('/path/to/your-dir/','NODE_CONTEXT')
Make sure you call the function as early as possible in your code.
How it works.
PuntoEnv will load .env
files in a particular order.
Environment variables are looked up in the following places, in order, stopping once the variable is found.
Environment variables that already exist have the highest priority and will not be overwritten by .env files.
const value = process.env.NODE_ENV // production
- process.env
- .env.$(value).local // .env.production.local
- .env.local
- .env.$(value) // .env.production
- .env
One exception to this rule is when the NODE_ENV=test
in that case *.local
files will not be loaded as you expect tests to produce the same results for everyone (but you can use .env.test
file).
I would also recommend adding all .env*.local
files to the .gitignore
file.
Variable expansion
After all the files have been processed, the variable expansion will take place. Before expansion:
SERVER=www.example.com:$PORT
PORT=3000
After expansion:
SERVER=www.example.com:3000
PORT=3000
License
This project is licensed under the MIT License - see the LICENSE file for details