🤖 Conversational AI Chatbot with Dynamic Memory & Sidebar Controls

A modern, production-ready AI Chatbot built with LangChain (v0.3+), Google Gemini 3.5 Flash and Streamlit.

✨ Features

• Stateful Memory: Remembers past conversations and maintains context.
• Dynamic Configuration: Adjust AI Temperature (Creativity) in real-time.
• Sidebar Controls: Easy access to configuration and chat management.
• Clean UI: Professional chat interface built with Streamlit.
• Error Handling: Robust text extraction from Gemini responses.

🚀 Quick Start

Prerequisites

• Python 3.8+
• Google Gemini API Key

Installation

1. Clone the repository: git clone https://github.com/mfpNahu07/Langchain-Chat cd Langchain-Chat

2. Set up the virtual environment: python -m venv .venv .venv\Scripts\Activate.ps1 # Windows

   source .venv/bin/activate # macOS/Linux

3. Install dependencies: pip install -r requirements.txt

4. Configure your API Key: Create a .env file in the root directory:

   GOOGLE_API_KEY=your_gemini_api_key_here

5. Run the application: python -m streamlit run app.py

🔧 Configuration

The app includes a sidebar for configuration:

• AI Temperature: Controls the randomness/creativity of the AI. Lower is more deterministic, higher is more creative.