Chat App

This is a simple chat application built with Express, Socket.io, and a local Ollama model.

Features

• Real-time chat functionality using Socket.io
• Integration with a local Ollama model to generate responses
• Serves a React frontend

Prerequisites

• Hardware Requirements:

  • Minimum 8 GB RAM
  • Minimum 2 GHz dual-core processor
  • 500 MB of free disk space

• Software Requirements:

  • Node.js
  • npm
  • Ollama model installed and accessible via the command line
  • Built on Linux OS (Ubuntu)

Installation

1. Clone the repository:

   git clone <repository-url>
   cd <repository-directory>

2. Install the dependencies:

   npm install

3. Build the React frontend:

   cd /home/subodhi/Desktop/Apps\ 2025/reactjsnew/chat-app
   npm install
   npm run build
   cd -

4. Install Ollama:

   curl -fsSL https://ollama.com/install.sh | sh

5. Verify Ollama installation:

   which ollama
   /usr/local/bin/ollama

6. Check installed models:

   ls ~/.ollama/models
   # Expected output:
   # phi -> ~2.2 GB
   # mistral -> ~4–5 GB

Running the App

1. Start the server:

   node src/server.js

2. Open your browser and navigate to http://localhost:5000.

Usage

• Open the chat application in your browser.
• Enter a message in the chat input and press enter.
• The message will be sent to the server, processed by the local Ollama model, and the response will be displayed in the chat.

Managing Ollama

1. Run the Ollama model:

   ollama run phi

2. Check if Ollama is already running:

   ps aux | grep ollama

3. Restart Ollama:

   kill <pid>
   ollama serve

Troubleshooting

• Ensure the Ollama model is installed and accessible via the command line.
• Check the server logs for any errors related to the exec function.

License

This project is licensed under the MIT License.