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Environment Variables

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Prathamesh Bhamare edited this page Mar 9, 2026 · 1 revision

🔐 Environment Variables

All environment variables used in MindBridge V2.

The .env File

Create a file called .env in the root of your project. Copy from .env.example and fill in your values.

cp .env.example .env

⚠️ Never commit your .env file to GitHub. It is in .gitignore to prevent this.

All Variables

Gemini AI

Variable Description Where to get it
VITE_GEMINI_API_KEY Google Gemini API key https://aistudio.google.com/app/apikey

Firebase

Variable Description Where to get it
VITE_FIREBASE_API_KEY Firebase web API key Firebase Console → Project Settings → Your Apps
VITE_FIREBASE_AUTH_DOMAIN Firebase auth domain Same as above
VITE_FIREBASE_PROJECT_ID Your Firebase project ID Same as above
VITE_FIREBASE_STORAGE_BUCKET Firebase storage bucket Same as above
VITE_FIREBASE_MESSAGING_SENDER_ID FCM sender ID Same as above
VITE_FIREBASE_APP_ID Firebase app ID Same as above

Example .env File

VITE_GEMINI_API_KEY=AIzaSyD3xxxxxxxxxxxxxxxxxxxx

VITE_FIREBASE_API_KEY=AIzaSyC44xxxxxxxxxxxxxxxxxxxx
VITE_FIREBASE_AUTH_DOMAIN=your-project.firebaseapp.com
VITE_FIREBASE_PROJECT_ID=your-project-id
VITE_FIREBASE_STORAGE_BUCKET=your-project.appspot.com
VITE_FIREBASE_MESSAGING_SENDER_ID=123456789
VITE_FIREBASE_APP_ID=1:123456789:web:abcdefghij

Important Rules

  1. No quotes around values — just paste directly after the =
  2. No spaces around the = sign
  3. Save the file before running npm run dev
  4. Restart the dev server after any .env change (Ctrl+C then npm run dev)
  5. All variables must start with VITE_ — otherwise Vite won't expose them to the browser

GitHub Secrets (for CI/CD)

For the live deployment to work via GitHub Actions, add all these same variables as GitHub Secrets:

  1. Go to your repo → Settings → Secrets and variables → Actions
  2. Click New repository secret
  3. Add each variable — name exactly as above, value exactly as in your .env

See CI/CD Pipeline for the full setup.

Rotating a Key

If you need to update a key (e.g. new Gemini API key):

  1. Update your local .env file
  2. Update the GitHub Secret:
    • Go to repo → Settings → Secrets → click pencil icon → paste new value
  3. Trigger a redeploy:
git commit --allow-empty -m "Refresh deployment"
git push

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