♾️ BoT — AI Chatbot App

AI-powered chatbot web app built with FastAPI, Streamlit, and Groq LLM. Supports user authentication and conversational AI with chat history.

Demo link: https://hurisrdnhftjjsxp4jhbvb.streamlit.app

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🛠️ Tech Stack

Layer	Technology
Frontend	Streamlit
Backend	FastAPI + Uvicorn
AI / LLM	Groq (LLaMA 3.3 70B)
Database	MySQL (Clever Cloud)
Deployment	Render + Streamlit Cloud

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✨ Features

• 🔐 User Registration & Login
• 💬 AI Chatbot with full conversation history
• 📄 File upload support (PDF, CSV, XLSX, TXT)
• 🔒 Secure authentication with password validation
• ⚡ Fast LLM responses via Groq API

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📁 Project Structure

bot/
├── app.py                  # FastAPI entry point
├── Home.py                 # Streamlit main page
├── requirements.txt
├── .env                    # Environment variables (not uploaded)
├── routers/
│   └── users.py            # All API routes
├── model/
│   └── schemas.py          # Pydantic models
├── data/
│   └── connection.py       # MySQL connection
├── dependencies/
│   └── dependency.py       # DB dependency injection
├── llm/
│   └── response.py         # Groq LLM logic
└── pages/
    ├── 1_Register.py
    ├── 2_Login.py
    └── 3_Settings.py

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🔌 API Endpoints

Method	Endpoint	Description
POST	/register_user	Register a new user
POST	/login_user	Login existing user
POST	/history_chat	Chat with AI (with history)
POST	/file_upload	Upload a file

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⚙️ Setup Locally

1. Clone the repo

git clone https://github.com/your-username/bot.git
cd bot

2. Install dependencies

pip install -r requirements.txt

3. Create .env file

DB_HOST=your_mysql_host
DB_USER=your_mysql_user
DB_PASSWORD=your_mysql_password
DB_NAME=your_database_name
DB_PORT=3306
groq_api_key=your_groq_api_key

4. Run the backend

uvicorn app:app --reload

5. Run the frontend

streamlit run Home.py

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🌐 Deployment

Service	Purpose	Free?
Render	FastAPI backend	✅
Streamlit Cloud	Frontend UI	✅
Clever Cloud	MySQL database	✅

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📝 Notes

• Render free tier sleeps after inactivity — first request may take ~30 seconds
• .env file is not included in the repo for security
• Passwords must be 8–16 characters, email must be a Gmail address

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👤 Author

Sanidhya — GitHub