Node.js Version

Verify Node.js and npm

Socket.IO runs on Node.js, so you need to install Node.js before creating the application.

Node.js includes npm, which is the package manager used to install project dependencies.

1. Download and install a supported Node.js LTS release.
2. Open your terminal or command prompt.
3. Verify the installation.

The following commands display the installed versions.

Requirements

Install Node.js and npm

Introduction to Socket.IO

Environment and Project Setup

Create the Express and Socket.IO Server

Connect the Browser to Socket.IO

Implement Real-Time Messaging

Master Socket.IO Events and Acknowledgements

Implement Socket.IO Rooms and Private Messaging

Socket.IO Authentication and Security

Connection Lifecycle and Reconnection

Testing and Troubleshooting

Scale Socket.IO Using Redis Adapter

Production Deployment and Best Practices

Create the Node.js Project

Learn Socket.IO from scratch by building a real-time chat application with Express, rooms, private messaging, authentication, and Redis scaling.

Socket.IO with Node.js: Build a Complete Real-Time Chat Application

Install Node.js and npm - Socket.IO with Node.js: Build a Complete Real-Time Chat Application

Install Node.js and npm

Requirements

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