https://github.com/kudos/koa-websocket

Light wrapper around Koa providing a websocket middleware handler that is koa-route compatible.
https://github.com/kudos/koa-websocket

javascript koa nodejs websockets ws

Last synced: about 1 month ago
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Light wrapper around Koa providing a websocket middleware handler that is koa-route compatible.

• Host: GitHub
• URL: https://github.com/kudos/koa-websocket
• Owner: kudos
• License: mit
• Created: 2015-03-08T23:03:44.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2023-02-27T07:56:31.000Z (over 1 year ago)
• Last Synced: 2024-04-08T09:03:07.718Z (7 months ago)
• Topics: javascript, koa, nodejs, websockets, ws
• Language: JavaScript
• Size: 826 KB
• Stars: 257
• Watchers: 4
• Forks: 36
• Open Issues: 22
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md

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README

        
# koa-websocket

[![CI Status](https://github.com/kudos/koa-websocket/actions/workflows/node.js.yml/badge.svg)](https://github.com/kudos/koa-websocket/actions)

> Koa v2 is now the default. For Koa v1 support install with koa-websocket@2 and see the `legacy` branch.

Supports `ws://` and `wss://`

## Installation

`npm install koa-websocket`

## Usage

See examples directory for a simple implementation.

### Let's Encrypt

Example with Let's Encrypt ([the Greenlock package](https://git.daplie.com/Daplie/greenlock-koa)):

```js

const Koa = require('koa');

const greenlock = require('greenlock-express');

const websockify = require('koa-websocket');

 

const le = greenlock.create({

  // all your sweet Let's Encrypt options here

});

 

// the magic happens right here

const app = websockify(new Koa(), wsOptions, le.httpsOptions);

 

app.ws.use((ctx) => {

   // the websocket is added to the context as `ctx.websocket`.

  ctx.websocket.on('message', function(message) {

    // do something

  });

});

 

app.listen(3000);

```

## API

#### websockify(KoaApp, [WebSocketOptions], [httpsOptions])

The WebSocket options object just get passed right through to the `new WebSocketServer(options)` call.

The optional HTTPS options object gets passed right into `https.createServer(options)`. If the HTTPS options are 

passed in, koa-websocket will use the built-in Node HTTPS server to provide support for the `wss://` protocol.

## License

MIT