Websocket - What Are Websocket ?
Web is built all around sending request to server and getting a response back from server, unless browser won’t request an update, the state will remain same. Although. AJAX saves a lot of pages reload and make the web feel more dynamic. But, still we need to make a lot of AJAX request. Which requires either some user interaction or periodic polling to load new data from the server.
This way it creates a hefty load of requests on server for undesired reasons.
WebSocket: Bringing life to Web
WebSocket is a protocol providing full-duplex communications channels over a single TCP connection. In layman terms, there is a active connection between server and client.
It is kind of a pipe open at both ends server and client. Both can send any data and would be received at another end.
web_socket = new WebSocket('ws://mywebsocketwebsite.com');
Call back events
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On server side we can use Ruby, Node.js, Java, Ruby, Python, C++ and all other popular frameworks and languages. In my last post how we can implement in Rails. In next few posts I will show we can build up a complete web socket based environment for chat.