fastify-uws

uWebSockets.js for fastify

Install

$ npm install @geut/fastify-uws

Usage

import fastify from 'fastify'
import { serverFactory, getUws, WebSocketStream } from '@geut/fastify-uws'

import fastifyUwsPlugin from '@geut/fastify-uws/plugin'

const app = fastify({
  serverFactory
})

await app.register(fastifyUwsPlugin)

app.addHook('onReady', async () => {
  // access to uws app
  const uwsApp = getUws(app)
})

app.websocketServer.on('open', ws => {
  console.log('OPEN')
})

app.websocketServer.on('close', ws => {
  console.log('CLOSE')
})

app
  .route({
    method: 'GET',
    url: '/',
    handler (req, reply) {
      return 'hello from http endpoint'
    },
    uws: {
      // cache subscription topics to produce less memory allocations
      topics: [
        'home/sensors/ligth',
        'home/sensors/temp'
      ]
    },
    uwsHandler (conn) {
      conn.subscribe('home/sensors/temp')
      conn.on('message', (message) => {
        conn.publish('home/sensors/temp', 'random message')
      })
      conn.send(JSON.stringify({ hello: 'world' }))
    }
  })
  .get('/stream', { uws: true }, (conn) => {
    const stream = new WebSocketStream(conn)
    stream.on('data', data => {
      console.log('stream data from /stream')
    })
  })
  .listen({
    port: 3000
  }, (err) => {
    err && console.error(err)
  })

Benchmarks

• Machine: linux x64 | 2 vCPUs | 6.8GB Mem
• Node: v18.15.0
• Run: Wed Apr 12 2023 19:06:58 GMT+0000 (Coordinated Universal Time)
• Method: autocannon -c 100 -d 40 -p 10 localhost:3000 (two rounds; one to warm-up, one to measure)

	Version	Router	Requests/s	Latency (ms)	Throughput/Mb
fastify-uws	1.0.0	✓	84001.6	11.50	12.58
0http	v3.5.1	✓	50275.2	19.41	8.97
bare	10.13.0	✗	49063.2	19.94	8.75
h3	1.6.4	✗	48583.2	20.10	7.97
fastify	4.15.0	✓	48141.6	20.30	8.63
h3-router	1.6.4	✓	48025.6	20.34	7.88
polka	0.5.2	✓	47676.0	20.49	8.50
server-base	7.1.32	✗	47286.4	20.68	8.43
server-base-router	7.1.32	✓	46884.0	20.85	8.36
yeps	1.1.1	✗	45748.0	21.36	8.16
connect	3.7.0	✗	45615.2	21.44	8.14
connect-router	1.3.8	✓	44720.0	21.91	7.97
vapr	0.6.0	✓	43516.0	22.48	7.14
spirit	0.6.1	✗	43287.2	22.64	7.72
spirit-router	0.5.0	✓	41488.0	23.64	7.40
polkadot	1.0.0	✗	39672.8	24.73	7.07
koa	2.14.2	✗	38013.4	25.80	6.78
yeps-router	1.2.0	✓	36993.8	26.54	6.60
take-five	2.0.0	✓	36582.2	26.86	13.15
koa-isomorphic-router	1.0.1	✓	36292.6	27.07	6.47
restify	11.1.0	✓	35689.0	27.53	6.43
koa-router	12.0.0	✓	33882.2	29.03	6.04
restana	4.9.7	✓	33645.4	29.26	6.00
hapi	21.3.1	✓	32087.2	30.68	5.72
express	4.18.2	✓	11337.0	87.64	2.02
fastify-big-json	4.15.0	✓	11012.2	90.32	126.70
express-with-middlewares	4.18.2	✓	10000.8	99.45	3.72
trpc-router	10.19.1	✓	6594.1	150.95	1.97
foxify	0.10.20	✓	N/A	N/A	N/A
galatajs	0.1.1	✓	N/A	N/A	N/A
micro-route	2.5.0	✓	N/A	N/A	N/A
micro	10.0.1	✗	N/A	N/A	N/A
microrouter	3.1.3	✓	N/A	N/A	N/A
total.js	3.4.13	✓	N/A	N/A	N/A

Issues

🐛 If you found an issue we encourage you to report it on github. Please specify your OS and the actions to reproduce it.

Contributing

👥 Ideas and contributions to the project are welcome. You must follow this guideline.

License

MIT © A GEUT project