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socket.io-client-pure is no longer maintained as the original socket.io removed all native dependencies. Please use the original.

socket.io-client-pure

1.3.12 • Public • Published

socket.io-client

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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 at the root of this repository.

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

Socket.IO is compatible with browserify.

Node.JS (server-side usage)

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

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

API

IO(url:String, opts:Object):Socket

Exposed as the io namespace in the standalone build, or the result of calling require('socket.io-client').

When called, it creates a new Manager for the given URL, and attempts to reuse an existing Manager for subsequent calls, unless the multiplex option is passed with false.

The rest of the options are passed to the Manager constructor (see below for details).

A Socket instance is returned for the namespace specified by the pathname in the URL, defaulting to /. For example, if the url is http://localhost/users, a transport connection will be established to http://localhost and a Socket.IO connection will be established to /users.

IO#protocol

Socket.io protocol revision number this client works with.

IO#Socket

Reference to the Socket constructor.

IO#Manager

Reference to the Manager constructor.

IO#Emitter

Reference to the Emitter constructor.

Manager(url:String, opts:Object)

A Manager represents a connection to a given Socket.IO server. One or more Socket instances are associated with the manager. The manager can be accessed through the io property of each Socket instance.

The opts are also passed to engine.io upon initialization of the underlying Socket.

Options:

  • reconnection whether to reconnect automatically (true)
  • reconnectionAttempts (Infinity) before giving up
  • reconnectionDelay how long to initially wait before attempting a new reconnection (1000). Affected by +/- randomizationFactor, for example the default initial delay will be between 500 to 1500ms.
  • reconnectionDelayMax maximum amount of time to wait between reconnections (5000). Each attempt increases the reconnection delay by 2x along with a randomization as above
  • randomizationFactor(0.5`), 0 <= randomizationFactor <= 1
  • timeout connection timeout before a connect_error and connect_timeout events are emitted (20000)
  • autoConnect by setting this false, you have to call manager.open whenever you decide it's appropriate

Events

  • connect. Fired upon a successful connection.
  • connect_error. Fired upon a connection error. Parameters:
    • Object error object
  • connect_timeout. Fired upon a connection timeout.
  • reconnect. Fired upon a successful reconnection. Parameters:
    • Number reconnection attempt number
  • reconnect_attempt. Fired upon an attempt to reconnect.
  • reconnecting. Fired upon an attempt to reconnect. Parameters:
    • Number reconnection attempt number
  • reconnect_error. Fired upon a reconnection attempt error. Parameters:
    • Object error object
  • reconnect_failed. Fired when couldn't reconnect within reconnectionAttempts

The events above are also emitted on the individual sockets that reconnect that depend on this Manager.

Manager#reconnection(v:Boolean):Manager

Sets the reconnection option, or returns it if no parameters are passed.

Manager#reconnectionAttempts(v:Boolean):Manager

Sets the reconnectionAttempts option, or returns it if no parameters are passed.

Manager#reconnectionDelay(v:Boolean):Manager

Sets the reconectionDelay option, or returns it if no parameters are passed.

Manager#reconnectionDelayMax(v:Boolean):Manager

Sets the reconectionDelayMax option, or returns it if no parameters are passed.

Manager#timeout(v:Boolean):Manager

Sets the timeout option, or returns it if no parameters are passed.

Socket

Socket#id:String

A property on the socket instance that is equal to the underlying engine.io socket id.

The property is present once the socket has connected, is removed when the socket disconnects and is updated if the socket reconnects.

Events

  • connect. Fired upon a connection including a successful reconnection.
  • error. Fired upon a connection error Parameters:
    • Object error data
  • disconnect. Fired upon a disconnection.
  • reconnect. Fired upon a successful reconnection. Parameters:
    • Number reconnection attempt number
  • reconnect_attempt. Fired upon an attempt to reconnect.
  • reconnecting. Fired upon an attempt to reconnect. Parameters:
    • Number reconnection attempt number
  • reconnect_error. Fired upon a reconnection attempt error. Parameters:
    • Object error object
  • reconnect_failed. Fired when couldn't reconnect within reconnectionAttempts

License

MIT

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Install

npm i socket.io-client-pure

Weekly Downloads

1,813

Version

1.3.12

License

MIT

Last publish

Collaborators

  • johanneswuerbach
  • stefanpenner
  • patocallaghan