fastify-ws
WebSocket support for Fastify built on the blazing fast ws and uws libraries.
Example
In server.js:
'use strict'
const fastify = require('fastify')()
fastify.register(require('fastify-ws'), {
library: 'uws' // Use the uws library instead of the default ws library
})
fastify.ready(err => {
if (err) throw err
fastify.ws
.on('connection', socket => {
socket.on('message', msg => socket.send(msg)) // Creates an echo server
})
})
fastify.listen(34567)Then run node server.js and navigate to http://localhost:34567 in your browser. In the browser's JavaScript console, open a client-side WebSocket connection:
const host = location.origin.replace(/^http/, 'ws')
const ws = new WebSocket(host)
ws.onmessage = msg => console.log(msg.data)Then, still in the browser console, send some messages to the server and watch as they're echoed back to you:
ws.send('WebSockets are awesome!')
// => undefined
// LOG: WebSockets are awesome!Notes
If you choose to use uws as your WebSocket library, ensure that you have configured your system properly and understand that the API is a slightly reduced subset of ws's.
License
Licensed under MIT.
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