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sockjs-client

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sockjs-client

SockJS-client is a browser JavaScript library that provides a WebSocket-like object.

  • 1.6.1
  • latest
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
2.9M
decreased by-20.35%
Maintainers
1
Weekly downloads
 
Created

What is sockjs-client?

The sockjs-client npm package provides a browser JavaScript library that provides a WebSocket-like object that offers a consistent, cross-browser interface for real-time, bi-directional communication between the client and the server. It falls back to a variety of browser-specific transport protocols if WebSockets are not available.

What are sockjs-client's main functionalities?

Establishing a connection to a SockJS server

This code sample demonstrates how to establish a connection to a SockJS server. It creates a new SockJS client instance, sets up event listeners for 'open', 'message', and 'close' events, and logs information to the console when these events occur.

var sock = new SockJS('http://mydomain.com/my_prefix');
sock.onopen = function() {
  console.log('open');
};
sock.onmessage = function(e) {
  console.log('message', e.data);
};
sock.onclose = function() {
  console.log('close');
};

Sending messages to the server

This code sample shows how to send a message to the server using the SockJS client. It sends a JSON stringified object as the message content.

sock.send(JSON.stringify({message: 'Hello, server!'}));

Receiving messages from the server

This code sample illustrates how to receive messages from the server. It sets up an event listener for the 'message' event and logs the received message to the console after parsing the JSON data.

sock.onmessage = function(e) {
  var message = JSON.parse(e.data);
  console.log('Received message:', message);
};

Closing the connection

This code sample demonstrates how to close the connection to the server using the SockJS client.

sock.close();

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Package last updated on 28 May 2022

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