middleware.ts

import { NextRequest, NextResponse } from "next/server";
import { getToken } from "next-auth/jwt";
export { default } from "next-auth/middleware";
// This function can be marked `async` if using `await` inside
export async function middleware(request: NextRequest) {
  const token = await getToken({ req: request });
  const url = request.nextUrl;

  if (
    token &&
    (url.pathname.startsWith("/sign-in") ||
      url.pathname.startsWith("/sign-up") ||
      url.pathname.startsWith("/verify") ||
      url.pathname === '/')
  ) {
    return NextResponse.redirect(new URL("/dashboard", request.url));
  }
  if (!token && url.pathname.startsWith("/dashboard")) {
    return NextResponse.redirect(new URL("/", request.url));
  }
  return NextResponse.next();
}

export const config = {
  //where will be active the middleware
  matcher: ["/sign-in", "/sign-up", "/dashboard/:path*"],
};