This repository contains two separate servers implemented in Node.js: a WebSocket server for real-time messaging and a RESTful API server for handling CRUD operations.

• Purpose: Manages real-time communication between clients.
• Technology: Built with the ws library in Node.js.
• Functionality: Handles multiple client connections, broadcasts messages to all connected clients, and logs connection events and messages.

• Purpose: Provides a set of HTTP endpoints for CRUD operations.
• Technology: Built on Express.js.
• Endpoints: Includes endpoints for creating, reading, updating, and deleting user data.
• Database: Uses PostgreSQL for data storage.

• Node.js
• npm (Node.js package manager)
• PostgreSQL database

Clone the repository to your local machine:

git clone https://github.com/demoronator/Nodejs-demo.git

Navigate into each server directory (api-server and websocket-server) and install the required dependencies:

cd api-server
npm install

cd ../websocket-server
npm install

Create a .env file in each server directory with the necessary environment variables:

For api-server:

DB_USER=yourPostgresUsername
DB_HOST=yourDatabaseHost
DB_DATABASE=yourDatabaseName
DB_PASSWORD=yourDatabasePassword
DB_PORT=yourDatabasePort

For websocket-server: No additional configuration required.

To start each server, run the following command in their respective directories:

For the API server:

node server.js

For the WebSocket server:

node server.js

The WebSocket server listens on port 8080 and supports multiple client connections. It broadcasts any received message to all connected clients.

• Handling multiple client connections
• Broadcasting messages to all clients
• Connection and message logging

The RESTful API server provides endpoints for user management, including creating, retrieving, updating, and deleting users.

• POST /users: Create a new user
• GET /users: Retrieve all users
• GET /users/:id: Retrieve a single user by ID
• PUT /users/:id: Update a user by ID
• DELETE /users/:id: Delete a user by ID

• CRUD operations for user management
• Input validation and error handling
• Secure password storage with bcrypt
• Request logging

Both servers utilize winston for logging, which helps in monitoring server operations and debugging.