Skip to content

A small decorator for the JavaScript WebSocket API that automatically reconnects

License

Notifications You must be signed in to change notification settings

level451/reconnecting-websocket

 
 

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

17 Commits
 
 
 
 
 
 

Repository files navigation

ReconnectingWebSocket

A small JavaScript library that decorates the WebSocket API to provide a WebSocket connection that will automatically reconnect if the connection is dropped.

It is API compatible, so when you have:

ws = new WebSocket('ws://....');

you can replace with:

ws = new ReconnectingWebSocket('ws://....');

Minified library with gzip compression is less than 600 bytes.

How reconnections occur

With the standard WebSocket API, the events you receive from the WebSocket instance are typically:

onopen
onmessage
onmessage
onmessage
onclose // At this point the WebSocket instance is dead.

With a ReconnectingWebSocket, after an onclose event is called it will automatically attempt to reconnect. In addition, a connection is attempted repeatedly (with a small pause) until it succeeds. So the events you receive may look something more like:

onopen
onmessage
onmessage
onmessage
onclose
// ReconnectingWebSocket attempts to reconnect
onopen
onmessage
onmessage
onmessage
onclose
// ReconnectingWebSocket attempts to reconnect
onopen
onmessage
onmessage
onmessage
onclose

This is all handled automatically for you by the library.

More

Like this? Check out websocketd for the simplest way to create WebSocket backends from any programming language.

Follow @joewalnes

Bitdeli Badge

About

A small decorator for the JavaScript WebSocket API that automatically reconnects

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published