💬 Chat App Server

A real-time chat server built using Node.js, Socket.IO, and MongoDB.
This backend handles authentication, room-based messaging, message history, and pagination.
It’s designed to connect seamlessly with a frontend client (like a web chat UI).

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Features

• User Authentication (via MongoDB)
• Real-time Messaging with Socket.IO
• Room-based Chat System
• Message History Loading (fetches last 20 messages)
• Pagination Support for older messages
• Socket.IO Admin UI Integration
• CORS Configured for local development and admin monitoring

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Tech Stack

• Node.js – Backend runtime
• Socket.IO – Real-time communication
• MongoDB – Database for users and messages
• @socket.io/admin-ui – Admin dashboard for live socket monitoring

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Setup Instructions

Clone the repository

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

Install dependencies

npm install

Add environment variables Create a .env file (or use Render environment variables):

MONGODB_URI=your_mongodb_connection_string
PORT=8000

Start the server

node index.js