StudiBro

Architecture

System Design

┌─────────────┐
│  Flutter    │
│ Mobile App  │
└──────┬──────┘
       │ HTTPS
       ▼
┌─────────────────────┐
│  Django REST API    │ ← Gemini AI
│  • Auth (JWT)       │ ← ML Kit (OCR)
│  • Summaries        │
│  • Quizzes          │
│  • Flashcards       │
└──────┬──────────────┘
       │
       ▼
   PostgreSQL

Database Models

User - Django built-in
Note - summaries with metadata
Quiz - quiz attempts & scoring
Question - quiz questions
QuestionOption - answer choices
Flashcard - flashcard sets
FlashcardCard - individual cards

API Design

• RESTful with JSON
• JWT authentication
• Error responses with status codes
• Filtering by subject_class & year

Tech Stack

Component	Technology
Frontend	Flutter 3.10+
Backend	Django 6.0 + DRF
AI	Google Gemini API
OCR	Google ML Kit
Database	PostgreSQL
Auth	JWT Tokens

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