Revora — Backend

The whole study app now runs on a small Node backend that does two jobs:

1. AI proxy (/api/ai) — all AI features (study chat, mock tests, flashcards, notes, diagrams) call the server, and the server calls Groq using a key that stays on the server. The API key is never exposed in the browser.
2. Persistent storage (/api/storage/*) — profiles, streaks, mastery scores, saved decks/notes/diagrams, planner, and usage limits are saved on the server (in data/store.json) instead of only in one browser.

Login is intentionally left as-is: it's a lightweight client-side profile, not real authentication. Everything else is fully wired to the backend.

Where do I paste my API key?

Open the .env file in this folder and put your key after GROQ_API_KEY=:

GROQ_API_KEY=gsk_your_key_here

Get a free key at https://console.groq.com/keys. Then restart the server.

That's the only place a key ever needs to go.

Run it

npm install
npm start

Then open http://localhost:3000.

Use npm run dev to auto-restart on file changes.

Endpoints

Data lives in data/store.json (created automatically, git-ignored). Delete that file to reset all app data.

Built With

• html
• javascript