Rendering Modes

// nuxt.config.ts
export default defineNuxtConfig({
  ssr: false,
})

<!-- app/spa-loading-template.html -->
<div class="loading">
  <div class="spinner"></div>
  <p>Loading...</p>
</div>

<style>
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
}
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #00dc82;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
</style>

// nuxt.config.ts
export default defineNuxtConfig({
  routeRules: {
    // Static pages - prerendered at build
    '/': { prerender: true },
    '/about': { prerender: true },

    // ISR - regenerate in background
    '/blog/**': { isr: 3600 }, // Cache for 1 hour
    '/products/**': { swr: true }, // Stale-while-revalidate

    // Client-only rendering
    '/admin/**': { ssr: false },
    '/dashboard/**': { ssr: false },

    // Server-rendered (default)
    '/api/**': { cors: true },
  },
})

<script setup lang="ts">
defineRouteRules({
  prerender: true,
})
</script>

// nuxt.config.ts
export default defineNuxtConfig({
  // Prerender specific routes
  routeRules: {
    '/': { prerender: true },
    '/about': { prerender: true },
    '/posts/*': { prerender: true },
  },
})

nuxt generate

// nuxt.config.ts
export default defineNuxtConfig({
  hooks: {
    'prerender:routes'({ routes }) {
      // Add dynamic routes
      const posts = await fetchPostSlugs()
      for (const slug of posts) {
        routes.add(`/posts/${slug}`)
      }
    },
  },
})

// server/api/posts.ts or a plugin
prerenderRoutes(['/posts/1', '/posts/2', '/posts/3'])

// nuxt.config.ts
export default defineNuxtConfig({
  nitro: {
    preset: 'cloudflare-pages', // or 'vercel-edge', 'netlify-edge'
  },
})

<script setup>
if (import.meta.server) {
  // Server-only code
  console.log('Running on server')
}

if (import.meta.client) {
  // Client-only code
  console.log('Running in browser')
}
</script>

<template>
  <ClientOnly>
    <BrowserOnlyComponent />
    <template #fallback>
      <p>Loading...</p>
    </template>
  </ClientOnly>
</template>