Working example of a protected dynamic route handler with Next15 and V5 that builds ?

[arejasverduras]

Can anyone give a clear example of a protected dynamic api route handler (patch, delete) that is 100% typesafe and builds in Next.js 15 using next-auth V5?

I have tried to apply this signature from this issue in many variations:
#9426

but it always returns the following when building:

This is the code that should work according to #9426

export async function DELETE(
  req: NextRequest,
  context: { params: { id: string } },
): Promise<NextResponse> {
  return auth(async () => {

    const { id } = await context.params;

    // 1. Ensure the user is authenticated
    if (!req.auth?.user) {
      return NextResponse.json({ error: "Not authenticated" }, { status: 401 });
    }

    // 2. Fetch the exercise to check ownership
    const exercise = await prisma.exercise.findUnique({
      where: { id: id as string },
      select: { createdById: true },
    });

    if (!exercise) {
      return NextResponse.json({ error: "Exercise not found" }, { status: 404 });
    }

    // 3. Check if the user is the creator or a superuser
    if (exercise.createdById !== req.auth.user.id && !req.auth.user.isSuperuser) {
      return NextResponse.json({ error: "Not authorized" }, { status: 403 });
    }

    // 4. Delete the exercise
    try {
      await prisma.exercise.delete({
        where: { id: id as string },
      });

      return NextResponse.json({ message: "Exercise deleted successfully" }, { status: 200 });
    } catch (error) {
      console.error("Error deleting exercise:", error);
      return NextResponse.json({ error: "Failed to delete exercise" }, { status: 500 });
    }

  })(req, context) as Promise<NextResponse>;
}

I have got it right for my POST handlers using the fix in this example:
#11727

Maybe someone can provide an example for a PATCH or DELETE route ?