Sourced from @​hono/node-server's releases.

v2.0.1

What's Changed

• fix: forward Hono response headers during WebSocket upgrade by @​gentamura in honojs/node-server#346

New Contributors

• @​gentamura made their first contribution in honojs/node-server#346

Full Changelog: honojs/node-server@v2.0.0...v2.0.1

v2.0.0

Now, we release the second major version of the Hono Node.js adapter 🎉 🎉 🎉

The Hono Node.js adapter is now up to 2.3x faster

v2 of the Hono Node.js adapter reaches up to 2.3x the throughput of v1 — that's the peak number, measured on the body-parsing scenario of bun-http-framework-benchmark. The other scenarios (Ping, Query) get a smaller but real boost too.

Install or upgrade with:

npm i @hono/node-server@latest

v2

The Node.js adapter is going through a major version bump to v2. That said, the public API stays the same — the headline of this release is the large performance improvement described above.

What does the Node.js adapter do?

A quick refresher on what the Node.js adapter actually does — it exists so that Hono applications can run on Node.js. Hono is built on the Web Standards APIs, but you cannot serve those directly from Node.js. The adapter bridges the Web Standards APIs and the Node.js APIs, which is what lets a Hono app — and more generally a Web-Standards-style app — run on top of Node.js.

If you write the following code and run node ./index.js, a server starts up on localhost:3000. And it really is plain Node.js underneath.

import { Hono } from 'hono'
import { serve } from '@hono/node-server'
const app = new Hono()
app.get('/', (c) => c.text('Hello World!'))
serve(app)

The early performance story

The very first implementation of the Node.js adapter looked roughly like this in pseudocode:

export const getRequestListener = (fetchCallback: FetchCallback) => {
  return async (incoming: IncomingMessage, outgoing: ServerResponse) => {
    const method = incoming.method || 'GET'
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• 9138a80 2.0.1
• 0ed7656 fix: forward Hono response headers during WebSocket upgrade (#346)
• 58c9355 2.0.0
• 2d6f161 Merge pull request #316 from honojs/v2
• 94cde95 2.0.0-rc.2
• ef43cdd perf: replace Uint8Array lookup tables with regex in buildUrl (#345)
• 1529e41 fix: improve Response.json() and Response.redirect() spec compliance and effi...
• 25f1674 fix: ensure close handler is attached for Blob/ReadableStream cacheable respo...
• 22dea22 refactor: improve handling of null body in response (#341)
• 7d83e09 v2: perf(response,listener): Response fast-paths and responseViaCache improve...
• Additional commits viewable in compare view