Recapcha

Video Link :

Recapcha is a full-stack web app that helps students convert their notes into quizzes for more effective studying. Write or upload your notes, and Recapcha will intelligently create quiz questions to test your memory and reinforce learning.

Features

• Save and manage plain text notes
• Automatically generate quizzes based on notes
• User authentication (Register / Login)
• Associate quizzes with their original notes
• Download .txt notes
• Built with MERN Stack (MongoDB, Express, React, Node.js)

Tech Stack

Layer	Technology
Frontend	React Native (Expo)
Backend	Node.js + Express
Database	MongoDB + Mongoose
Auth	Custom Bearer Token
Language	TypeScript & JavaScript

Setup Instructions

Prerequisites

• Node.js (v18+ recommended)
• MongoDB (local or Atlas)
• Expo CLI: npm install -g expo-cli

Backend Setup

cd server
npm install
npm run dev

Create a .env file inside the /server folder:

# API Keys
REACT_APP_OPENAI_API="your_openai_api_key_here"
REACT_APP_DEEPGRAM_API_KEY="your_deepgram_api_key_here"
REACT_APP_GOOGLE_API_KEY="your_google_api_key_here"
REACT_APP_GOOGLE_CLIENT_ID="your_google_client_id_here"

# Database
MONGODB_URI="your_mongodb_connection_string"

# Server
PORT=5050

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How It Works

1. User creates a note → Stored in backend and linked to user
2. User generates a quiz → Tied to the specific note
3. Both are stored and retrievable per user
4. Downloads available as .txt and .json

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Notes

• Notes and quizzes are embedded arrays in the User schema
• Quizzes reference notes via UUID (fastest for embedded schema)
• Authentication is simplified with user ID tokens

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Team

@aeishan @1sakib @obeyad12 @MuhammadTaha457

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📃 License

This project is licensed under the MIT License