Using ExpressAuth, when adding a AUTH_URL entry in my .env - it is ignored and the error [auth][warn][env-url-basepath-redundant] Read more: https://warnings.authjs.dev#env-url-basepath-redundant even when basePath wasn't set

[noam-honig]

Environment

  System:
    OS: Windows 11 10.0.22631
    CPU: (16) x64 Intel(R) Core(TM) i7-7820X CPU @ 3.60GHz
    Memory: 7.70 GB / 31.68 GB
  Binaries:
    Node: 20.14.0 - C:\Program Files\nodejs\node.EXE
    npm: 10.7.0 - C:\Program Files\nodejs\npm.CMD
    pnpm: 8.15.6 - ~\AppData\Roaming\npm\pnpm.CMD
  Browsers:
    Edge: Chromium (127.0.2651.74)
    Internet Explorer: 11.0.22621.3527
  npmPackages:
    @auth/express: ^0.6.1 => 0.6.1
    react: ^18.3.1 => 18.3.1

Reproduction URL

.

Describe the issue

Using ExpressAuth, when adding a AUTH_URL entry in my .env - it is ignored and the error [auth][warn][env-url-basepath-redundant] Read more: https://warnings.authjs.dev#env-url-basepath-redundant even when basePath wasn't set

How to reproduce

use ExpressAuth, set environment variable AUTH_URL - you'll get the error - here's my authConfig code:

import type { UserInfo } from "remult";
import { Request } from "express";
import type { AuthConfig } from "@auth/core";
import { ExpressAuth, getSession } from "@auth/express";
import Credentials from "@auth/express/providers/credentials";
import GitHub from "@auth/express/providers/github";

const authConfig: AuthConfig = {
  providers: [
    Credentials({
      credentials: {
        name: {},
      },
      authorize: async (credentials) => ({
        id: credentials.name as string,
        name: credentials.name as string,
      }),
    }),
    GitHub,
  ],
  callbacks: {
    session: ({ session, token }) => ({
      ...session,
      user: {
        id: token.sub,
        name: token.name,
      },
    }),
  },
};

export const auth = ExpressAuth(authConfig);
export async function getUserFromRequest(req: Request) {
  return (await getSession(req, authConfig))?.user as UserInfo;
}

Expected behavior

I expected it to not give a warning and respect the AUTH_URL

[github-actions]

We could not detect a valid reproduction link. Make sure to follow the bug report template carefully.

Why was this issue closed?

To be able to investigate, we need access to a reproduction to identify what triggered the issue. We need a link to a public GitHub repository. Example: (NextAuth.js example repository).

The bug template that you filled out has a section called "Reproduction URL", which is where you should provide the link to the reproduction.

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I did not open this issue, but it is relevant to me, what can I do to help?

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Useful Resources

• How to create a Minimal, Complete, and Verifiable example
• Bug report: Framework
• Bug report: Provider
• Bug report: Adapter