environment

name	environment
description	Environment variables.
license	MIT
metadata	{"author":"vant","version":"1.0"}

Environment

Environment variables.

---

When To Use

• Config secrets
• API keys
• Environment-specific settings

---

What To Do

1. Files

File	What
.env	Local (gitignore)
.env.local	Local override
.env.production	Production

2. Syntax

API_KEY=secret123
DATABASE_URL=postgres://localhost
DEBUG=true

3. Load

// Node
require('dotenv').config()
process.env.API_KEY

# Python
from dotenv import load_dotenv
load_dotenv()
os.environ['API_KEY']

4. Best Practice

• Never commit secrets
• Use different values per env
• Validate required vars

---

Role: Environment Manager
Input: .env files
Output: Config

Secrets.