Files
JJ KasperGitHubTim NeutkensZack Tannerkodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
7d93808c43 Remove render workers in favor of esm loader (#54813)
Currently we create separate workers to isolate `pages` and `app`
routers due to differing react versions being used between the two. This
adds overhead and complexity in the rendering process which we can avoid
by leveraging an `esm-loader` similar to our `require-hook` to properly
alias `pages` router to the bundled react version to match `app` router
when both are leveraged together.

This aims to seamlessly inject the `esm-loader` by restarting the
process with the loader arg added whenever `next` is imported so that
this also works with custom-servers and fixes the issue with custom
req/res fields not working after upgrading.


x-ref: https://github.com/vercel/next.js/issues/53883
x-ref: https://github.com/vercel/next.js/issues/54288
x-ref: https://github.com/vercel/next.js/issues/54129
x-ref: https://github.com/vercel/next.js/issues/54435
closes: https://github.com/vercel/next.js/issues/54440
closes: https://github.com/vercel/next.js/issues/52702
x-ref: [slack
thread](https://vercel.slack.com/archives/C03KAR5DCKC/p1693348443932499?thread_ts=1693275196.347509&cid=C03KAR5DCKC)

---------

Co-authored-by: Tim Neutkens <[email protected]>
Co-authored-by: Zack Tanner <[email protected]>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
2023-09-11 22:17:52 +02:00

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JavaScript

const next = require('next')
const express = require('express')
const dev = process.env.NODE_ENV !== 'production'
const dir = __dirname
const port = process.env.PORT || 3000
const app = next({ dev, dir })
const handleNextRequests = app.getRequestHandler()
app.prepare().then(() => {
const server = express()
server.use(express.json({ limit: '5mb' }))
server.all('*', (req, res) => {
req.fromCustomServer = true
handleNextRequests(req, res)
})
server.listen(port, (err) => {
if (err) {
throw err
}
console.log(`> Ready on http://localhost:${port}`)
})
})