NextAuth middleware Response.redirect() not working after moving app directory to src/app structure

[ianshaloom]

Summary

After migrating my Next.js project from the standard app directory structure to the src structure, my NextAuth middleware's callbacks in the auth.config.ts are not called at all, which are essential for checking session. The authentication logic works for protecting routes, authenticated users are automatically redirected from the login page (/login) to the dashboard (/dashboard) as expected, but when I navigate to path (/) it does not redirect back to dashboard.

Problem Behavior:
Login works correctly and redirects to /dashboard after successful authentication
Issue: When logged in and manually navigating to the root page (/),
the user is NOT redirected to /dashboard as expected

Before (Working):

.
├── app
│   ├── dashboard/
│   ├── (authentication)/
│   ├── layout.tsx
│   └── page.tsx
├── auth.config.ts
├── auth.ts
├── middleware.ts
├── next.config.ts
├── next-env.d.ts
├── node_modules
├── package.json
├── pnpm-lock.yaml
├── postcss.config.js
├── public
├── README.md
├── tailwind.config.ts
└── tsconfig.json

After (Not Working):

.
├── auth.config.ts
├── auth.ts
├── middleware.ts
├── next.config.ts
├── next-env.d.ts
├── node_modules
├── package.json
├── pnpm-lock.yaml
├── postcss.config.js
├── public
│   ├── customers/
│   ├── favicon.ico
│   ├── hero-desktop.png
│   ├── hero-mobile.png
│   └── opengraph-image.png
├── README.md
├── src
│   ├── app
│   │   ├── dashboard/
│   │   ├── (authentication)/
│   │   ├── layout.tsx
│   │   └── page.tsx
│   ├── data/
│   ├── lib/
│   └── ui/
├── tailwind.config.ts
└── tsconfig.json

Expected Behavior:
When a logged-in user visits the root page (/), they should be automatically redirected to /dashboard.

Project Details:
Next.js: 15.4.2-canary.32
NextAuth: 5.0.0-beta.29
Using App Router with Turbopack

Additional information

// middleware.ts file contents:

import NextAuth from 'next-auth';
import { authConfig } from './auth.config';
 
export default NextAuth(authConfig).auth;
 
export const config = {
  matcher: ['/((?!api|_next/static|_next/image|.*\\.png$).*)'],
};



// auth.config.ts file contents:

import type { NextAuthConfig } from "next-auth";

export const authConfig = {
  pages: {
    signIn: "/login",
  },
  session: {
    strategy: "jwt",
    maxAge: 60 * 60, // 1 hour
    updateAge: 60 * 15, // 15 minutes
  },
  callbacks: {
    async jwt({ token, user }) {
      // Add user info to token when user signs in
      if (user) {
        token.id = user.id;
        token.email = user.email;
        token.name = user.name;
      }

      return token;
    },
    async session({ session, token }) {
      console.log("session", session);
      console.log("token", token);

      // Only create session if token is valid (user exists in database)
      if (!token) {
        // Force sign out by throwing error
        throw new Error("Invalid session - user no longer exists");
      }

      // Add user info from token to session
      session.user.id = token.id as string;
      session.user.email = token.email as string;
      session.user.name = token.name as string;

      return session;
    },
    authorized({ auth, request: { nextUrl } }) {
      console.log("########################### checking if user is logged in ###########################");
      console.log("auth", auth);
      console.log("nextUrl", nextUrl);

      const isLoggedIn = !!auth?.user;
      const isOnDashboard = nextUrl.pathname.startsWith("/dashboard");
      if (isOnDashboard) {
        if (isLoggedIn) return true;
        return false; // Redirect unauthenticated users to login page
      } else if (isLoggedIn) {
        return Response.redirect(new URL("/dashboard", nextUrl));
      }
      return true;
    },
  },
  providers: [], // Providers are configured in auth.ts
} satisfies NextAuthConfig;

Example

No response