Node Websocket Vs

screenshot of Node Websocket Vs

Node Websocket Vs

Comparing WebSocket and Socket.IO on Node.js with Express.js


Node WebSocket vs. Socket.IO is a comparison article that delves into the differences between WebSocket and Socket.IO on Node.js with Express.js. The article provides a detailed analysis of the server-side and client-side code for both WebSocket and Socket.IO, aiming to clarify misconceptions around their network traffic. By exploring Stack Overflow answers where the code was implemented, readers can gain insights into comparing these technologies for their projects.


  • Comparison of WebSocket and Socket.IO: Detailed insights into the differences between WebSocket and Socket.IO.
  • Example Server-Side and Client-Side Code: Provides code examples for utilizing both WebSocket and Socket.IO in an Express.js app.
  • Network Traffic Comparison: Clarifies the actual network traffic differences, a common point of confusion for many online sources.
  • Integration with Express.JS: Information on how to use Socket.IO in combination with Express.JS.
  • Long Polling Event Loop Handling: Addresses potential issues with Node.js long polling event loops in the context of WebSocket and Socket.IO.
  • Developer Tools Guidance: Instructions on how to analyze network traffic using developer tools in browsers like Firefox and Chrome.


To install the Node WebSocket vs. Socket.IO theme, follow these steps:

  1. Installing from npm:

    • Globally: npm install -g
    • Locally: npm install
  2. Installing from GitHub:

    • Clone the repo and install npm dependencies:
      git clone [repo_link]
      npm install
    • Alternatively, download the ZIP file from the GitHub repository.
  3. Installing from Docker:

    • Build and run a Docker image from the root repo folder.
  4. Running the Server:

    • Start the server using either (if installed from npm) or ./ws-vs-si.js (if installed from the GitHub repo).
  5. Accessing the Server:

    • Open http://localhost:3001/ for the WebSocket version or http://localhost:3002/ for the Socket.IO version in your browser.
  6. Analyzing Network Traffic:

    • Open developer tools in Firefox or Chrome, navigate to the Network tab, and reload the page to inspect the network traffic for both versions.


The comparison between Node WebSocket and Socket.IO provides valuable insights into utilizing these technologies in Node.js with Express.js. By offering example code, clarifying network traffic differences, and guiding users on installation and server access, the article serves as a comprehensive resource for developers looking to implement WebSocket or Socket.IO in their projects. Additionally, the contributions from various authors and the transparent MIT License add credibility and value to the content.


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