.env.sample !new! -

cp .env.sample .env # Then edit .env with your actual values

# Server Configuration PORT=3000 NODE_ENV=development # Database Credentials DB_HOST=localhost DB_USER=admin DB_PASS=replace_with_your_password # Third-Party APIs STRIPE_API_KEY=sk_test_... AWS_S3_BUCKET=my-app-assets Use code with caution. Copied to clipboard Common Alternatives

If a variable requires a specific format (e.g., a specific URL or a boolean value), leave a comment in the .env.sample file.

ENABLE_CACHE=true

# ============================================================================== # APPLICATION CONFIGURATION # ============================================================================== NODE_ENV=development PORT=8080 APP_URL=http://localhost:8080 # ============================================================================== # DATABASE CONFIGURATION # Use "postgresql" or "mysql" for DB_CLIENT # ============================================================================== DB_CLIENT=postgresql DB_HOST=localhost DB_PORT=5432 DB_USER=your_database_user DB_PASSWORD=your_database_password DB_NAME=my_app_dev # ============================================================================== # THIRD-PARTY API KEYS # Get your keys at https://stripe.com and https://sendgrid.com # ============================================================================== STRIPE_API_KEY=sk_test_replace_with_your_actual_key SENDGRID_API_KEY=SG.replace_with_your_actual_key # ============================================================================== # SECURITY & AUTHENTICATION # Generate a random 32-character string for the secret # ============================================================================== JWT_SECRET=your_jwt_secret_phrase_here Use code with caution. Key Elements to Notice:

Seriously—never put real passwords, API keys, or private keys in this file.

In the root directory of your project, create a file named .env.sample . Populate it with the keys your application needs, along with safe placeholder values or instructional text. Step 3: Commit the Sample File Add and commit the sample file to your Git repository: .env.sample

When a new developer joins your project, they should not have to hunt through source code or ask teammates for a list of required environment variables. A .env.sample file allows them to copy the template, fill in their local credentials, and start developing immediately. 2. Prevention of Security Breaches

Adopt this standard in your projects today. Use the .gitignore rules, provide a clear template, and explore automation tools like evnx to ensure your configuration stays as robust and maintainable as your application code. It's a small change that yields massive dividends in security and developer happiness.

The .env.sample file is a . It contains all the keys your application needs, but none of the secrets . It is safe to commit to version control. It answers the question: "What environment variables must I define to run this project?" Populate it with the keys your application needs,

.env.development.example .env.staging.example .env.production.example

A developer clones the repo and runs cp .env.sample .env .

: It serves as living documentation. A well-maintained sample file tells contributors which third-party services are required (e.g., Discord, AWS, or Mailchimp). CI/CD Alignment with options to filter by prefix

: An npm CLI tool that generates sample environment files from an existing .env file, with options to filter by prefix, remove comments, or add banner text.