/Knowledge/sources/honojs__hono/llms-full/node-js-websocket--a223b3607a88.md
Node.js: WebSocket - hono-docs
Node.js: WebSocket Source evidence: /Sources/honojs hono/provenance.md Canonical citation: https://hono.dev/llms full.txt websocket Summary WebSocket support...
Node.js: WebSocket
Source evidence: /Sources/honojs__hono/provenance.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 },
})
Metadata
{
"chunk_index": 0,
"citation": "https://hono.dev/llms-full.txt#websocket",
"coverage_role": "overview",
"qualified_title": "Hono / llms-full / Node.js > WebSocket",
"retrieved_at": "2026-07-02T05:51:01Z",
"section_index": 456,
"source_id": "/honojs/hono",
"source_type": "llms_full",
"target_label": "llms-full",
"title": "Node.js: WebSocket",
"upstream_url": "https://hono.dev/llms-full.txt",
"version": "2026"
}
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