AI Study Companion App

Overview

AI Study Companion is a powerful Flutter application that leverages artificial intelligence to enhance your learning experience. The app allows users to upload various document types (PDF, DOC, TXT, JPG, PNG) and receive AI-generated summaries and interactive quizzes based on the content.

Preview

Simulator.-.iPhone.15.-.5.February.2025.mp4

Live Web link

https://67a4df0dd9f4e12a8327e0d3--stellular-marigold-95229f.netlify.app

Key Features

• Document Processing

  • Support for multiple file formats (PDF, DOC, TXT, JPG, PNG)
  • Upload up to 5 files simultaneously
  • AI-powered document summarization
  • Text extraction from images using OCR

• AI-Powered Learning

  • OpenAI GPT-3.5 and GPT-4 integration
  • Intelligent document analysis
  • Dynamic quiz generation

• Advanced Technology Stack

  • Vector similarity search using Pinecone
  • Multi-agent system with Langgraph
  • Real-time processing and analysis
  • OCR for text extraction with @google-cloud/vision

Technical Architecture

Mobile App (Flutter)

• BLoC pattern for state management
• File handling and processing
• Real-time communication with backend

Backend Server (Node.js/TypeScript)

• OpenAI integration
• Pinecone vector database
• Multi-agent system using Langgraph
• Document processing pipeline

Prerequisites

• Flutter SDK (>=3.4.3)
• Node.js (Latest LTS version)
• OpenAI API Key
• Pinecone API Key and Index

Installation

Mobile App Setup

1. Clone the repository:

git clone 

2. Navigate to the mobile app directory:

cd 

3. Install dependencies:

flutter pub get

Server Setup

1. Navigate to the server directory:

cd 

2. Install dependencies:

npm install

3. Create a .env file in the server root with the following variables:

Create account in Google Cloud and download the JSON file

GOOGLE_APPLICATION_CREDENTIALS_JSON = {YOUR GOOGLE APPLICATION CREDENTIALS JSON}

5. Start the server:

npx tsx server.ts

6. Update the server URL in the Flutter app:
   • Open mobile/lib/services/api_service.dart
   • Update the baseUrl to match your server address

Project Structure

.
├── mobile/                 # Flutter application
│   ├── lib/               # Dart source files
│   ├── assets/           # App resources
│   └── pubspec.yaml      # Flutter dependencies
│
└── server/                # Backend server
    ├── services/         # Business logic
    ├── routes/           # API endpoints
    ├── tools/            # Utility scripts
    └── package.json      # Node.js dependencies

Dependencies

Mobile App

• flutter_ai_toolkit: ^0.6.8
• flutter_bloc: ^9.0.0
• file_picker: ^8.1.7
• flutter_chat_ui: ^1.6.15
• http: ^1.3.0
• And more (see pubspec.yaml)

Server

• @langchain/openai: ^0.3.14
• @langchain/pinecone: ^0.1.3
• @google-cloud/vision: 4.3.2
• express: ^4.21.1
• typescript: ^5.7.2
• And more (see package.json)

Contributing

1. Fork the repository
2. Create your feature branch
3. Commit your changes
4. Push to the branch
5. Create a new Pull Request

License

This project is licensed under the MIT License - see the LICENSE.txt file for details.

Created by Oleksandr Samoilenko
Extrawest.com, 2025