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I am new to nodejs programming and going through various js that are being developed for node. My question is a basic one. Can someone please explain me the difference between express and socketio.
From what I know, express is a middleware on which we can use template engines like jade to push data to browser. What does socketio do then? Is it a transport layer? It is confusing to me to understand the difference and why we need express and socket in nodejs apps.
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Express http server gives request response model from client to server. Socket.io enables bidirectional communication channel between client and server.
NodeJS is an event-driven, non-blocking I/O model using JavaScript as its main language. It helps to build scalable network applications. Express is a minimal and flexible Node. js web application framework that provides a robust set of features for web and mobile applications.
Socket.IO can be used based on the Express server just as easily as it can run on a standard Node HTTP server. In this section, we will fire the Express server and ensure that it can talk to the client side via Socket.IO.
Express is a minimal and flexible node. js web application framework, providing a robust set of features for building single and multi-page, and hybrid web applications; Next. js: *A small framework for server-rendered universal JavaScript apps *.
Express is an application server. You define routes and write code to generate your application's pages or API responses. It is basically a port of a ruby project called Sinatra. It works for a traditional request/response HTTP model.
Socket.io is there to help you implement a server push model for real time type features such as alerts/notifications, chat, or whatever updates you want to do if you want them to just show up in the browser without waiting for the user to click a "refresh" button or anything like that.
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