GMind

GMind is a dockerized Node.js AI chat application powered by Google AI Studio API and PostgreSQL, using Prisma ORM for database management.

Features

• User registration and login with JWT authentication
• Secure password hashing using bcrypt
• Chat interface with Google Gemini AI responses
• Persistent chat history per user
• RESTful API endpoints
• Dockerized for easy deployment
• PostgreSQL database integration via Prisma

Project Structure

├── src/
│   ├── server.js            # Main server entry point
│   ├── prismaClient.js      # Prisma client setup
│   ├── routes/
│   │   ├── authroutes.js    # Authentication routes
│   │   └── chatroutes.js    # Chat routes
│   └── middleware/
│       └── authmiddleware.js# JWT authentication middleware
├── prisma/
│   ├── schema.prisma        # Prisma schema
│   └── migrations/          # Database migrations
├── public/                  # Static frontend files
│   └── style/               # CSS/JS assets
├── views/
│   ├── login.html           # Login page
│   └── chat.html            # Chat page
├── Dockerfile               # Docker build instructions
├── docker-compose.yaml      # Multi-container orchestration
├── package.json             # Node.js dependencies and scripts
└── .env                     # Environment variables

Getting Started

Prerequisites

• Docker
• Node.js (for local development)
• PostgreSQL (if not using Docker)

Environment Variables

Create a .env file with the following (see .env):

API_KEY=your_google_api_key
PORT=5000
JWT_SECRET=your_jwt_secret_key
DATABASE_URL=postgresql://postgres:postgres@db:5432/gmind

Local Development

1. Install dependencies:

   npm run setup

2. Initialize Prisma:

   npm run setupPrismaORM
   npm run generateDB

3. Start the server:

   npm run dev

Docker Deployment

1. Build and start containers:

   docker compose build

2. Match prisma schema to postgresql db by setting migration:

   docker compose run serverapp npx prisma migrate dev --name init

3. Run server and db services:

   docker compose up

4. Access the app at http://localhost:5000

API Endpoints

• POST /auth/register — Register a new user
• POST /auth/login — Login and receive JWT token
• GET /chat/dash — Serve chat interface
• POST /chat/ — Send a message to Gemini AI
• GET /chat/ — Retrieve chat history

Technologies Used

• Node.js
• Express
• Prisma ORM
• PostgreSQL
• Docker & Docker Compose
• Google AI Studio API (Gemini)
• JWT & bcryptjs

License

This project is licensed under the MIT License - see the LICENSE file for details.

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Note: Replace API keys and secrets in .env and docker-compose.yaml with your own