N
Nuxt•3w ago
Muhammad Awais

Infinite scrolling with useAsyncData

Hello guys, I wanted to know what's the correct way to implement infinite scroll in nuxt3 using useAsyncData
2 Replies
kapa.ai
kapa.ai•3w ago
Hi @Muhammad Awais. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To implement infinite scrolling in Nuxt 3 using useAsyncData, you'll need to combine a few techniques. While the knowledge sources don't provide a direct example of infinite scrolling with useAsyncData, we can piece together a solution based on the available information. Here's a general approach you can take: 1. Use useAsyncData to fetch the initial data. 2. Implement a way to detect when the user has scrolled to the bottom of the page. 3. Use the refresh function returned by useAsyncData to fetch more data when needed. Here's a basic example of how you might structure this: 
<script setup>
const page = ref(1)
const { data, refresh } = await useAsyncData(
  'infiniteScroll',
  () => $fetch(`/api/items?page=${page.value}`)
)

const loadMore = async () => {
  page.value++
  await refresh()
}

// Implement scroll detection here
// When the user scrolls to the bottom, call loadMore()
</script>

<template>
  <div>
    <div v-for="item in data" :key="item.id">
      <!-- Render your items here -->
    </div>
  </div>
</template>
<script setup>
const page = ref(1)
const { data, refresh } = await useAsyncData(
  'infiniteScroll',
  () => $fetch(`/api/items?page=${page.value}`)
)

const loadMore = async () => {
  page.value++
  await refresh()
}

// Implement scroll detection here
// When the user scrolls to the bottom, call loadMore()
</script>

<template>
  <div>
    <div v-for="item in data" :key="item.id">
      <!-- Render your items here -->
    </div>
  </div>
</template>
In this example, we're using the refresh function to fetch more data when needed. The page ref is used to keep track of the current page, and we increment it before calling refresh. It's important to note that the refresh function will re-run the original fetch function with the updated page value. You'll need to ensure your API supports pagination and that you're appending the new data to the existing data rather than replacing it entirely. For the scroll detection part, you might want to use a library like vue-infinite-scroll or implement your own scroll detection logic using the Intersection Observer API. Remember that this is a basic example and you may need to adjust it based on your specific API and requirements. The official Nuxt documentation doesn't provide a specific example for infinite scrolling with useAsyncData, so you may need to experiment to find the best approach for your use case. For more information on useAsyncData and its options, you can refer to the Nuxt 3 documentation on useAsyncData. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai•3w ago
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