/Wiki/sources/honojs__hono/2026/https-hono-dev-llms-full-txt-websocket-53cba97c14ed-websocket-s0456-c0000.md
WebSocket - hono-docs
WebSocket Source evidence: /Sources/raw/honojs hono/honojs hono.md Canonical citation: https://hono.dev/llms full.txt websocket Summary WebSocket support is...
WebSocket
Source evidence: /Sources/raw/honojshono/honojshono.md Canonical citation: https://hono.dev/llms-full.txt#websocket
Summary
WebSocket support is built into @hono/node-server. Install ws and, if you use TypeScript, @types/ws. Then create a WebSocketServer with { noServer: true } and pass it to serve() with the websocket option. @hono/node-ws is...
Content
WebSocket support is built into @hono/node-server. Install ws and, if you use TypeScript, @types/ws. Then create a WebSocketServer with { noServer: true } and pass it to serve() with the websocket option.
@hono/node-ws is deprecated.
import { serve, upgradeWebSocket } from '@hono/node-server'
import { Hono } from 'hono'
import { WebSocketServer } from 'ws'
const app = new Hono()
app.get(
'/ws',
upgradeWebSocket(() => ({
onMessage(event, ws) {
ws.send(event.data)
},
}))
)
const wss = new WebSocketServer({ noServer: true })
serve({
fetch: app.fetch,
websocket: { server: wss },
})
Kinic Wiki