Requirements

• Server-Side Implementation: You need to have a server-side implementation that supports web sockets. Socket.io is compatible with popular server-side technologies like Node.js, Python, Java, and PHP. Ensure that you have a server environment set up with the necessary dependencies.
• Client-Side Library: Include the Socket.io client-side library in your web application. You can either download the library and include it in your project or use a Content Delivery Network (CDN) to fetch the library from a remote server. Make sure to include the library in your HTML file.
• Compatible Browsers: Socket.io relies on web socket technology, which is supported by modern browsers. Ensure that the target browsers for your application support web sockets. Most popular browsers, including Chrome, Firefox, Safari, and Edge, provide web socket support.
• Network Connectivity: Ensure that the server hosting your web application and the clients accessing it have a stable network connection. Socket.io relies on an active network connection to establish and maintain the real-time communication between the client and the server.
• Event-Based Programming: Socket.io follows an event-driven programming model. To utilize Socket.io effectively, you should have a good understanding of event-based programming concepts and be comfortable with emitting and handling custom events.