Can't get current session in API Route

[renaldy23]

Environment

System:
    OS: Windows 11 10.0.22631
    CPU: (16) x64 AMD Ryzen 7 4800H with Radeon Graphics
    Memory: 3.14 GB / 15.42 GB
  Binaries:
    Node: 20.11.1 - D:\Apps\Source\nodejs\node.EXE
    npm: 10.2.4 - D:\Apps\Source\nodejs\npm.CMD
    pnpm: 8.12.1 - ~\AppData\Local\pnpm\pnpm.EXE
  Browsers:
    Edge: Chromium (126.0.2592.113)
    Internet Explorer: 11.0.22621.3527
  npmPackages:
    @auth/prisma-adapter: ^2.4.1 => 2.4.1
    next: 14.2.5 => 14.2.5
    next-auth: 5.0.0-beta.19 => 5.0.0-beta.19
    react: ^18 => 18.3.1

Reproduction URL

https://github.com/renaldy23/nextauthjs-bug-session

Describe the issue

I'm trying to get current session user in API route next js, everthing works find if im hit the API via client component :

but when i try to hit the api via server component the session user is undefined :

im using Credentials provider. the configuration is like this :

How to reproduce

To reproduce the issue follow this step by step :

1. install the library using pnpm install
2. generate auth js secret using pnpx auth secret
3. run the server pnpm dev
4. hit the button Sign In and use this credential to sign in. email : [email protected], pass : 123456
5. hit the button Change Page (Server) to reproduce log that return undefined
6. hit the button Change Page (Client) to reproduce log that return current session user

Expected behavior

i want to get current session user if im hit the API both from client component and server component