env - Environment Variable Access

• Type: (key: string) => string
• Description: The env function provides secure access to environment variables. It returns an empty string if the variable is not found.

Basic Usage

const apiKey = env('API_KEY')
const dbPassword = env('DB_PASSWORD')

Template Usage

<% const apiKey = env('API_KEY') %>
<p>Using API key: <%= apiKey %></p>

Security Notes

• Returns empty string for undefined variables
• Use for sensitive configuration
• Avoid exposing secrets in templates
• Prefer environment variables over hardcoded values

Best Practices

1. Check for Required Variables

const apiKey = env('API_KEY')
if (!apiKey) {
  error('Missing required API_KEY environment variable')
  // Handle error case
}

2. Use Descriptive Names

// Good
const stripeSecretKey = env('STRIPE_SECRET_KEY')

// Avoid
const key = env('KEY')

3. Document Required Variables

// Document required environment variables in your README or configuration files
/**
 * Required environment variables:
 * - API_KEY: Your API key for external service
 * - DB_PASSWORD: Database password
 * - SMTP_PASSWORD: Email service password
 */