Deployment - lesson 3 | HackIndia Skills

Deployment - lesson 3 | HackIndia Skills | HackIndia

Example

Use a safe example

Keep a sample file in the repo so someone can set up the project. It shows names, not real values.

This is useful for your HackIndia submission because reviewers can see what the app needs.

# .env.example
DATABASE_URL=
NEXTAUTH_SECRET=
NEXT_PUBLIC_API_BASE_URL=
RAZORPAY_KEY_ID=
RAZORPAY_KEY_SECRET=

Example

Read env in code

Check the exact names your app reads. Those are the names you must create on the host.

For Node.js apps, process.env reads server-side environment variables.

// server/db.js
const databaseUrl = process.env.DATABASE_URL;

if (!databaseUrl) {
  throw new Error("DATABASE_URL is missing");
}

export { databaseUrl };

Set production environment variables

One rule

What goes in env

Do not commit secrets

Use a safe example

Add them on host

Know public prefixes

Read env in code

Do this now

Quick check