[next.config.js] rewrites be able to change the proxyTimeout

[viniciusbitt]

Describe the feature you'd like to request

I am creating a site in Next.JS and my server in Express and I am doing rewrite inside next.config.js pointing to my server.

const nextConfig = {
  async rewrites() {
    return [
      {
        source: "/api/:path*",
        destination: `${server.url}api/:path*`
      },
    ];
  },
};

But there's a problem, I can't make a request to my server and the response takes longer than 30 seconds, because the following error appears:

Error: Socket hang up

Also happens if I am using for example Socket.IO, where this error appears in the console.

Describe the solution you'd like

Checking where the possible problem is, I realized it is on this lines:

next.js/packages/next/server/next-server.ts

Lines 486 to 492 in 0de109b

	const proxy = new HttpProxy({
	target,
	changeOrigin: true,
	ignorePath: true,
	xfwd: true,
	proxyTimeout: 30_000, // limit proxying to 30 seconds
	})

where proxyTimeout is being limited to 30 seconds.

Thinking about a solution, I believe it should be possible to configure proxyTimeout.

Related issues:
#36251

Related discussions:
#24805

Describe alternatives you've considered

N/A