🧠 Engram

Engram is a personalized AI-powered chat application that reflects your personality by analyzing diary entries. It consists of a React frontend and a Node.js backend and uses Groq's LLaMA 3 for generating intelligent, personalized conversations.

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🚀 Features

• 🔐 User authentication (Sign Up / Sign In)
• 🧬 Personality extraction from diary entries
• 💬 AI-powered chat with Groq’s LLaMA 3
• 🌐 Secure token handling
• 📦 Unified startup using one command

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🧑‍💻 Technologies Used

• Frontend: React, Styled Components
• Backend: Node.js, Express, JWT, Groq API
• AI Model: LLaMA 3 via Groq API
• Storage: localStorage (tokens), database for users/diaries
• Dev Tooling: concurrently, nodemon

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🛠 Setup Instructions

1. Clone the repository

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

2. Install dependencies

npm install        # root level (for concurrently)

cd Backend
npm install        # backend dependencies

cd ../engram-complete
npm install        # frontend dependencies

3. Environment Variables

Backend (Backend/.env)

MONGO_URI=<YOUR-MONGO-URI>
JWT_SECRET=<YOUR-JWT_SECRET>
API=<YOUR-AI-API-KEY>

Frontend (engram-complete/.env)

VITE_API_KEY=<Your-AI-API-KEY>

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🧪 Running the App

From the root directory:

npm run start

This will:

• Start the backend using nodemon (on port 5000)
• Start the frontend using npm start (on port 3000)

💡 Make sure both Backend and engram-complete have valid start scripts in their package.json.

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📌 Available Scripts

In the project root:

"scripts": {
  "start": "concurrently \"npm run server\" \"npm run client\"",
  "server": "cd Backend && npm start",
  "client": "cd engram-complete && npm start"
}

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💭 How It Works

1. User signs up or logs in.
2. Diary entries (future feature) are used to extract a personality.
3. Chat requests are sent to the backend, which generates LLaMA 3 prompts based on that personality.
4. LLaMA 3 replies through the Groq API, creating personalized conversations.

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🐛 Troubleshooting

• Port in use (EADDRINUSE): Make sure port 5000 (backend) isn't already occupied.
• Frontend script missing: Ensure "start" exists in engram-complete/package.json.

📄 License

The project comes under MIT License.