Nuxt•4w ago

Island component: share server data to client side

Et there, I need to implement a component with a server side data fetching. To ensure it, I found the concept of island components. But, I don't find a way to share those data with a client's children (or a client part of the component?). In the doc, I read this https://nuxt.com/docs/guide/directory-structure/components#paired-with-a-client-component but the usage of shared elements between .server and .client seems to be not documented yet... Is it possible? How can I do it? Many thanks in advance

Nuxt

components/ · Nuxt Directory Structure

The components/ directory is where you put all your Vue components.

2 Replies

kapa.ai•4w ago

Hi @Sun. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Based on the knowledge sources provided, I can answer your question about sharing server data to the client side in island components. Island components in Nuxt are indeed designed for server-side rendering, but sharing data with client-side components is possible, though with some limitations and experimental features. 1. Server Components and Client Components: Nuxt allows you to create paired server and client components. As mentioned in the Nuxt documentation (https://nuxt.com/docs/guide/directory-structure/components#paired-with-a-client-component), you can create two 'halves' of a component:

-| components/
---| Comments.client.vue
---| Comments.server.vue

-| components/
---| Comments.client.vue
---| Comments.server.vue

The server component (.server.vue) will handle the server-side rendering, while the client component (.client.vue) will handle client-side interactions. 2. Experimental Feature for Client Components within Server Components: There's an experimental feature that allows you to use client components within server components. This feature is called "selective client" and needs to be enabled in your Nuxt configuration. According to the Nuxt documentation (https://nuxt.com/docs/guide/directory-structure/components#client-components-within-server-components):

// nuxt.config.ts
export default defineNuxtConfig({
  experimental: {
    componentIslands: {
      selectiveClient: true
    }
  }
})

// nuxt.config.ts
export default defineNuxtConfig({
  experimental: {
    componentIslands: {
      selectiveClient: true
    }
  }
})

With this feature enabled, you can use the nuxt-client attribute to mark a component for client-side loading within a server component:

<template>
  <div>
    <HighlightedMarkdown markdown="# Headline" />
    <!-- Counter will be loaded and hydrated client-side -->
    <Counter nuxt-client :count="5" />
  </div>
</template>

<template>
  <div>
    <HighlightedMarkdown markdown="# Headline" />
    <!-- Counter will be loaded and hydrated client-side -->
    <Counter nuxt-client :count="5" />
  </div>
</template>

3. Limitations and Caveats: It's important to note that there are some limitations when working with island components and client components within them: - Slots for client components within island components are currently not fully supported. According to a GitHub pull request (https://github.com/nuxt/nuxt/pull/25454), passing slots to client components within islands is not available yet and will be coming in a future PR with some caveats. - The island component context is isolated from the rest of your app. As stated in the Nuxt documentation (https://nuxt.com/docs/guide/directory-structure/components#server-component-context), "you can't access the 'island context' from the rest of your app and you can't access the context of the rest of your app from the island component." 4. Sharing Data: To share data between the server and client parts of your component, you have a few options: - Use props to pass data from the server component to the client component. - Utilize Nuxt's state management capabilities, such as useState, which is SSR-friendly. According to the Nuxt documentation on state management (https://nuxt.com/docs/getting-started/state-management), useState is designed to create a reactive and SSR-friendly shared state across components. - You can also use the payload object to expose data from the server side to the client side. As mentioned in the Nuxt documentation (https://nuxt.com/docs/api/composables/use-nuxt-app#payload), the payload object exposes data and state variables from the server side to the client side. In conclusion, while it is possible to share server data with client-side components in Nuxt island components, the process involves using experimental features and working within certain limitations. The Nuxt team is actively working on improving this functionality, so it's worth keeping an eye on future updates to the framework. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•4w ago

<@211565256890122240> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

Gaming

Programming

Island component: share server data to client side