How to Install Vue 3 in Astro

In this section we will install vue 3 in Astro. This Astro integration enables server-side rendering and client-side hydration for your Vue 3 components. For css we will use Tailwind CSS because astro easily integrate Tailwind CSS.

Tools Use

Astro

Tailwind CSS (@astrojs/tailwind)

Vue 3 (@astrojs/vue)

Create Astro Project

Create Astro with the Automatic CLI

# npm
npm create astro@latest

# yarn
yarn create astro

# pnpm
pnpm create astro@latest

Give project name and select astro template.

✔ Where would you like to create your new project? … astro-vue3
? Which template would you like to use? › - Use arrow-keys. Return to submit.
❯  Just the basics (recommended)
  Blog
  Portfolio
  Documentation Site
  Empty project

install npm dependencies.

✔ Would you like to install npm dependencies? (recommended) … yes

Select typescript.

? How would you like to setup TypeScript? › - Use arrow-keys. Return to submit.
  Relaxed
❯  Strict (recommended) - Enable `strict` typechecking rules
  Strictest
  I prefer not to use TypeScript

Move to project

cd astro-vue3 

Install Tailwind CSS in Astro

install tailwind css in astro using @astrojs/tailwind

# Using NPM
npm run astro add tailwind
# Using Yarn
yarn astro add tailwind
# Using PNPM
pnpm astro add tailwind

Install Vue 3 in Astro

install vue 3 in astro using @astrojs/vue

# Using NPM
npm run astro add vue
# Using Yarn
yarn astro add vue
# Using PNPM
pnpm astro add vue

### Use Vue 3 in Astro
In Astro using vue 3 is very simple. you need just need to create vue components and import astro file.

Counter App in Astro with Vue 3

Create Counter.vue in src/components

src/components/Counter.vue

<script setup>
import { ref } from 'vue';
const count = ref(0);
const heading = 'Astro with Vue 3 Counter APP';
</script>
<template>
  <div class="flex flex-col items-center m-5">
    <h1 class="text-xl font-bold text-purple-600">{{ heading }}</h1>
    <button
      @click="count++"
      class="px-4 py-2 text-sm text-white bg-green-600 rounded"
    >
      Increment
    </button>
    <p>Count is: {{ count }}</p>
    <button
      @click="count--"
      class="px-4 py-2 text-sm text-white bg-red-600 rounded"
    >
      Decrement
    </button>
  </div>
</template>

Import vue 3 counter component in astro file

src/pages/index.astro

---
import Layout from '../layouts/Layout.astro';
import Counter from '../components/Counter.vue';
---

<Layout title="Welcome to Astro.">
  <main class="flex flex-col items-center justify-center h-screen">
    <div>
      <h1 class="text-3xl font-bold">
        Welcome to <span class="text-blue-600">Astro</span>
      </h1>
      <p class="">Install Astro + Tailwind CSS + Vue3</p>
    </div>
    <Counter client:load />
  </main>
</Layout>

Run server

npm run dev