Nuxt 3 Getting Started and Principles Introduction
💡 What is Nuxt 3?
Nuxt 3 is a full-stack frontend framework built on Vue 3 and Vite, supporting:
- Server-Side Rendering (SSR)
- Static Site Generation (SSG)
- Single-Page Applications (SPA)
- Building full-stack applications (with API support)
Nuxt 3 is an "enhanced version" of Vue, helping you simplify project structure and development workflow.
🔧 Core Principles
| Feature | How Nuxt Handles It |
|---|---|
| ✅ Page Routing | Automatically generated based on the pages/ directory structure |
| ✅ Auto Component Import | Automatically registers components in components/ |
| ✅ SSR / SSG / SPA | Built-in support, switch via commands or configuration |
| ✅ API Endpoints | Supports writing backend logic in server/api/ |
| ✅ State Management | Recommended to use pinia (Vue's official state management library) |
| ✅ Build Performance | Defaults to Vite (fast build) or can switch to Webpack |
| ✅ TypeScript | Native support |
🚀 Quick Start
1. Create Project
npx nuxi init my-nuxt-app
cd my-nuxt-app
npm install
npm run dev
2. Directory Structure
my-nuxt-app/
├── pages/ # Page directory (automatically becomes routes)
├── components/ # Component directory (auto-imported)
├── layouts/ # Layout pages
├── app.vue # Global entry file
├── nuxt.config.ts # Configuration file
├── server/api/ # Backend API directory (for full-stack development)
✏️ Example Code
Page: pages/index.vue
<template>
<h1>Welcome to Nuxt 3</h1>
</template>
Visit http://localhost:3000 to see the effect.
API Endpoint: server/api/hello.ts
export default defineEventHandler(() => {
return { message: 'Hello Nuxt API' }
})
API access address: http://localhost:3000/api/hello
Return result:
{ "message": "Hello Nuxt API" }
Client-side API Call
const { data } = await useFetch('/api/hello')
✅ Who is Nuxt 3 For?
- Developers who use Vue but don't want to manually configure build, routing, and SSR
- Those who want to build high-performance, SEO-friendly websites/applications
- Developers who want to use one codebase for frontend + backend APIs
📚 Recommended Learning Resources
- Chinese Official Website: https://nuxt.com.cn
- Official Documentation: https://nuxt.com
- Video Courses: Search for "Nuxt3 入门" (Nuxt3 Getting Started) on Bilibili
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