Instructions for `astro-auth` results in build error

[thdoan]

📚 Subject area/topic

astro-auth

📋 Page(s) affected (or suggested, for new content)

https://docs.astro.build/en/guides/authentication/#authjs

📋 Description of content that is out-of-date or incorrect

The instructions results in this build error:

❯ npm run build

> @example/basics@0.0.1 build
> astro build

16:55:51 [ERROR] [astro-auth] No Adapter found, please make sure you provide one in your Astro config
16:55:51 [ERROR] [astro-auth] An unhandled error occurred while running the "astro:config:setup" hook
Cannot read properties of undefined (reading 'name')
  Location:
    /home/projects/withastro-astro-ewbcra9m/node_modules/auth-astro/src/integration.ts:35:29
  Stack trace:
    at astro:config:setup (/home/projects/withastro-astro-ewbcra9m/node_modules/auth-astro/src/integration.ts:35:29)
    at withTakingALongTimeMsg (file:///home/projects/withastro-astro-ewbcra9m/node_modules/astro/dist/integrations/hooks.js:62:18)
    at Module.runHookConfigSetup (file:///home/projects/withastro-astro-ewbcra9m/node_modules/astro/dist/integrations/hooks.js:171:41)
    at async AstroBuilder.run (file:///home/projects/withastro-astro-ewbcra9m/node_modules/astro/dist/core/build/index.js:198:23)
    at async build (file:///home/projects/withastro-astro-ewbcra9m/node_modules/astro/dist/cli/build/index.js:44:3)

It seems the instructions are missing a number of additional steps or requirements that must be met first, in which case it should be pointed out in the document.

🖥️ Reproduction in StackBlitz (if reporting incorrect content or code samples)

1. Go to https://stackblitz.com/edit/withastro-astro-ewbcra9m?file=auth.config.ts
2. Execute npm run build in terminal