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socket.io-client

How to use

A standalone build of socket.io-client is exposed automatically by the socket.io server as /socket.io/socket.io.js. Alternatively you can serve the file socket.io.js found in the dist folder or include it via CDN.

<script src="/socket.io/socket.io.js"></script>
<script>
  var socket = io();
  socket.on('connect', function(){});
  socket.on('event', function(data){});
  socket.on('disconnect', function(){});
</script>

// with ES6 import
import io from 'socket.io-client';

const socket = io();

A slim build (without JSON3, a JSON polyfill for IE6/IE7, and debug) is also available: socket.io.slim.js.

Socket.IO is compatible with browserify and webpack (see example there).

Node.JS (server-side usage)

Add socket.io-client to your package.json and then:

var socket = require('socket.io-client')('http://localhost:3000');
socket.on('connect', function(){});
socket.on('event', function(data){});
socket.on('disconnect', function(){});

Debug / logging

In order to see all the client debug output, run the following command on the browser console – including the desired scope – and reload your app page:

localStorage.debug = '*';

And then, filter by the scopes you're interested in. See also: https://socket.io/docs/logging-and-debugging/

API

See API

License

MIT

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