Node JS WebSocket: Examples | Chat Features | Client-Server communication – CronJ Blog

Node Js WebSocket is a protocol and it makes two-way communication between the user and the server in real-time. Websockets are an alternative for HTTP communication in web applications.

WebSockets offer bidirectional communication between client and server and Node Js WebSocket makes it possible to open an interactive communication between user’s browser and server to send messages to the server and it receives event-driven responses without having to poll the server for a reply.

Once the connection is established, then the channel is kept open, offering very fast connection with low latency and overhead.

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Common use cases are chats, Online multiplayer games, Google Docs, etc.

To work with the Node Js WebSocket API for asynchronous communication between browser and servers, Here are some libraries in Node.js

WebSocket

Ws

Socket.io

Sockjs

Socketcluster

WebSocket as promised

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