Short Polling vs Long Polling vs Web Sockets 🔥🔥🔥

Short Polling: In a short polling client requests data from the server and the server will return the response if it is available and if it is not available then it returns an empty response. This process will be repeated at regular intervals.

Long Polling: In Short polling, there was a problem that if the response is not available then the server returns an empty response.

So, In long polling, this problem got solved. Here, in long polling, the client sends a request to the server and if the response is not available then the server will hold the request till the response gets available, & after the availability of the response, the server will send the response back. After getting a response, again the request will be made either immediately or after some period of time and this process will repeat again and again. In simple words, the client will always be in the live connection to the server.

WebSocket: WebSocket is bidirectional, a full-duplex protocol that is used in the same scenario of client-server communication, unlike HTTP it starts from ws:// or wss://. It is a stateful protocol, which means the connection between client and server will keep alive until it is terminated by either party (client or server). After closing the connection by either of the client and server, the connection is terminated from both ends.

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