feat: migrate to Nuxt 3

[Copilot]

fix: #4

The SDK was built on Nuxt 2/Vue 2, which is now legacy. This migrates to Nuxt 3/Vue 3 for modern framework support.

Changes

Dependencies

• Nuxt 2.15.8 → 3.10.0
• Vue 2.7.10 → 3.4.15
• Removed deprecated @nuxtjs/auth-next and @nuxtjs/axios modules

Configuration

• nuxt.config.js → nuxt.config.ts with defineNuxtConfig()
• Middleware renamed to .global.ts for automatic global application

Code Migration

• Pages converted to Composition API with <script setup>
• Middleware uses defineNuxtRouteMiddleware() and navigateTo() instead of context-based routing
• Components updated: <router-view> → <NuxtPage>, router-link → NuxtLink

Example of page migration:

<!-- Before (Nuxt 2) -->
<script>
export default {
  mounted() {
    const user = Cookies.get('casdoorUser');
    this.userJson = user ? JSON.parse(user) : {};
  },
  methods: {
    handleLogout() {
      Cookies.remove('casdoorUser');
      this.$router.push('/');
    }
  }
}
</script>

<!-- After (Nuxt 3) -->
<script setup>
const router = useRouter();
const userJson = ref({});

onMounted(() => {
  const user = Cookies.get('casdoorUser');
  userJson.value = user ? JSON.parse(user) : {};
});

const handleLogout = () => {
  Cookies.remove('casdoorUser');
  router.push('/');
};
</script>

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
nuxt-auth	Ready	Preview, Comment	Feb 4, 2026 8:43am

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[hsluoyz]

@copilot fix error:

16:37:06.951 Running build in Washington, D.C., USA (East) – iad1
16:37:06.952 Build machine configuration: 2 cores, 8 GB
16:37:07.074 Cloning github.com/casdoor/nuxt-auth (Branch: copilot/support-nuxt3-sdk, Commit: 05de739)
16:37:07.075 Previous build caches not available.
16:37:07.320 Cloning completed: 246.000ms
16:37:07.763 Running "vercel build"
16:37:08.993 Vercel CLI 50.9.6
16:37:09.591 Installing dependencies...
16:37:14.280 npm warn deprecated urix@0.1.0: Please see https://github.com/lydell/urix#deprecated
16:37:14.724 npm warn deprecated stable@0.1.8: Modern JS already guarantees Array#sort() is a stable sort, so this library is deprecated. See the compatibility table on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#browser_compatibility
16:37:14.725 npm warn deprecated source-map-url@0.4.1: See https://github.com/lydell/source-map-url#deprecated
16:37:14.746 npm warn deprecated source-map-resolve@0.5.3: See https://github.com/lydell/source-map-resolve#deprecated
16:37:14.838 npm warn deprecated resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated
16:37:16.131 npm warn deprecated figgy-pudding@3.5.2: This module is no longer supported.
16:37:16.483 npm warn deprecated consolidate@0.15.1: Please upgrade to consolidate v1.0.0+ as it has been modernized with several long-awaited fixes implemented. Maintenance is supported by Forward Email at https://forwardemail.net ; follow/watch https://github.com/ladjs/consolidate for updates and release changelog
16:37:17.115 npm warn deprecated @npmcli/move-file@1.1.2: This functionality has been moved to @npmcli/fs
16:37:17.691 npm warn deprecated @babel/plugin-proposal-private-property-in-object@7.21.11: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-private-property-in-object instead.
16:37:17.707 npm warn deprecated @babel/plugin-proposal-private-methods@7.18.6: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-private-methods instead.
16:37:17.708 npm warn deprecated @babel/plugin-proposal-nullish-coalescing-operator@7.18.6: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-nullish-coalescing-operator instead.
16:37:17.708 npm warn deprecated @babel/plugin-proposal-class-properties@7.18.6: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-class-properties instead.
16:37:17.740 npm warn deprecated @babel/plugin-proposal-optional-chaining@7.21.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-optional-chaining instead.
16:37:18.278 npm warn deprecated chokidar@2.1.8: Chokidar 2 does not receive security updates since 2019. Upgrade to chokidar 3 with 15x fewer dependencies
16:37:20.492 npm warn deprecated vue@2.7.16: Vue 2 has reached EOL and is no longer actively maintained. See https://v2.vuejs.org/eol/ for more details.
16:37:26.920 
16:37:26.921 added 1461 packages in 17s
16:37:26.922 
16:37:26.923 230 packages are looking for funding
16:37:26.923   run `npm fund` for details
16:37:27.003 Running "npm run build"
16:37:27.100 
16:37:27.100 > nuxt-auth@1.0.0 build
16:37:27.101 > nuxt build
16:37:27.101 
16:37:28.049 [info] Production build
16:37:28.051 [info] Bundling for server and client side
16:37:28.051 [info] Target: static
16:37:28.060 [info] Using components loader to optimize imports
16:37:28.061 [info] Discovered Components: .nuxt/components/readme.md
16:37:28.077 [success] Builder initialized
16:37:28.184 [success] Nuxt files generated
16:37:28.435 [warn] Browserslist: caniuse-lite is outdated. Please run:
16:37:28.436   npx update-browserslist-db@latest
16:37:28.436   Why you should do it regularly: https://github.com/browserslist/update-db#readme
16:37:36.525 [info] Ready to run `nuxt generate`
16:37:37.122 Error: No Output Directory named "dist" found after the Build completed. Configure the Output Directory in your Project Settings. Alternatively, configure vercel.json#outputDirectory.
16:37:37.123 Learn More: https://vercel.link/missing-public-directory