[build]: n.end is not a function

Hello everyone, I’ve been trying to use this package to protect some of our under development pages but I’m running into an issue with next optimization step.

The package versions I’m using are

"next": "9.4.4",
"nextjs-basic-auth-middleware": "^0.1.0",

The error comes from an attempt by next to optimize the page

Creating an optimized production build

Compiled successfully.

Automatically optimizing pages ...
Error occurred prerendering page "/new". Read more: https://err.sh/next.js/prerender-error
TypeError: n.end is not a function

My code is as follows:

import Document, { DocumentContext, DocumentInitialProps } from 'next/document'
import basicAuthMiddleware from 'nextjs-basic-auth-middleware'

const credentials = process.env.BASIC_AUTH_CREDENTIALS.split(':')

class MyDocument extends Document {
  static async getInitialProps(ctx: DocumentContext): Promise<DocumentInitialProps> {
    await basicAuthMiddleware(ctx.req, ctx.res, {
      users: [{ name: credentials[0], password: credentials[1] }],
      includePaths: ['/new'],
    })

    const initialProps = await Document.getInitialProps(ctx)
    return initialProps
  }
}

export default MyDocument

It seems that the call to basicAuthMiddleware terminates/ends the response which may be used by the call to getInitialProps?

I’ve attempted at reordering the calls to see if that’s the case, but I havent had any luck. One of my subpages is also using the getStaticProps, but removing it doesnt fix the build.

Edit: I realize I forgot to write that process.env.BASIC_AUTH_CREDENTIALS are set at build time, so that’s not a potential source of the error

[jchiatt]

@OZZlE @afzalsayed96 @JonasBa I went ahead and rolled my own basic auth package: https://www.npmjs.com/package/nextjs-basic-auth

(It also requires opting out of static generation, unfortunately)

[OZZlE]

I’m fine with opting out of SSG, we are caching our website in Fastly anyway but what I wrote earlier was that SSR wouldn’t work properly so for us ‘nextjs-basic-auth’ sounds quite interesting! 😃