🤖 AI Chatbot

A full-stack AI chatbot application built with the MERN stack (MongoDB, Express, React, Node.js). It features secure Google Authentication, real-time chat storage, and a modern UI.

🚀 Features

• Google Authentication: Secure login/signup using Google OAuth 2.0.
• JWT Authorization: Dual-token system (Access + Refresh Tokens) for session management.
• AI Integration: Connects to Gemini/OpenAI API for intelligent responses.
• Chat History: Saves all conversations to MongoDB for easy retrieval.
• Responsive UI: Modern, dark-themed interface built with React + Vite.

🛠️ Tech Stack

Frontend:

• React (Vite)
• TailwindCSS
• Axios
• React Router DOM

Backend:

• Node.js & Express.js
• MongoDB (Mongoose)
• Google Auth Library
• JSON Web Token (JWT)

⚙️ Environment Variables

To run this project, you will need to add the following environment variables to your .env file in the backend folder:

PORT = 5000 MONGO_URI = your_mongodb_connection_string JWT_SECRET = your_random_secret_string JWT_REFRESH_SECRET = your_random_refresh_secret GOOGLE_CLIENT_ID = your_google_console_client_id

Watch the demo video