nodemailer provider can't be used as middleware

[arslan2012]

Provider type

Email

Environment

System:
    OS: Linux 6.6 Manjaro Linux
    CPU: (16) x64 AMD Ryzen 7 5800X 8-Core Processor
    Memory: 23.45 GB / 31.27 GB
    Container: Yes
    Shell: 5.2.26 - /bin/bash
  Binaries:
    Node: 21.6.2 - /usr/bin/node
    pnpm: 8.15.2 - /usr/bin/pnpm
  npmPackages:
    @auth/unstorage-adapter: ^2.0.0 => 2.1.0 
    next: latest => 14.2.3 
    next-auth: beta => 5.0.0-beta.18 
    react: ^18.2.0 => 18.3.1 

Reproduction URL

https://github.com/arslan2012/nodemailer-test

Describe the issue

As soon as you add Nodemailer the auth.ts, middleware stops working, throwing below error

⨯ Error: The edge runtime does not support Node.js 'stream' module.
Learn More: https://nextjs.org/docs/messages/node-module-in-edge-runtime

or maybe this error

 ⨯ node_modules/.pnpm/nodemailer@6.9.13/node_modules/nodemailer/lib/base64/index.js (56:0) @ <unknown>
 ⨯ Class extends value undefined is not a constructor or null
null

disabling middleware or downgrading to next-auth 4 both fixes this issue.
So this bug is next-auth 5 only.

How to reproduce

add Nodemailer provider to the auth.ts and enable middleware

Expected behavior

everything should work fine.

[balazsorban44]

Please see the docs: https://authjs.dev/guides/edge-compatibility

[arslan2012]

But the error is occurring on my local machine, maybe I'm on the edge, my computer definitely isn't.
per my Environment section, I'm using Node 21 on a Linux machine.
@balazsorban44