N
Nuxt•3mo ago
Lovefield

`useAsnycData` Bug?

Nuxt : 3.17.5 Environment : Bun.js I'm having an issue with useAsyncData in a single page file. I have a pagination feature where /article-list/1 and /article-list/2 both point to the article.vue file, which uses useAsyncData. 
const { data } = await useAsyncData(
    "categoryArticleList",
    ...
);
const { data } = await useAsyncData(
    "categoryArticleList",
    ...
);
In the development environment (dev), the data updates correctly when navigating between pages. However, after building the project (prod), the data does not change. Did I misconfigure something? P.S.) As a temporary workaround, I've managed to solve it by making the key of useAsyncData dynamic.
2 Replies
kapa.ai
kapa.ai•3mo ago
Hi @Lovefield. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- This behavior is a known issue with how Nuxt 3.17.x handles the caching and keying of useAsyncData. When you use a static key (like "categoryArticleList") for useAsyncData, Nuxt will reuse the same data instance for all calls with that key—even if the underlying parameters (such as the page number in your route) change. This can cause the data to not update as expected when navigating between pages that use the same component but different parameters, especially in production builds. In development, HMR and other dev-only behaviors can sometimes mask this issue, but in production, the cache is stricter and you see the stale data problem. The recommended solution is to use a dynamic key that incorporates the relevant parameter (such as the page number) into the key. For example: 
const route = useRoute()
const { data } = await useAsyncData(
  () => `categoryArticleList-${route.params.page}`,
  ...
)
const route = useRoute()
const { data } = await useAsyncData(
  () => `categoryArticleList-${route.params.page}`,
  ...
)
This ensures that each page gets its own cache entry and the data updates correctly when navigating between pages. This behavior and the need for dynamic keys when your data depends on route parameters or other dynamic values is discussed in the Nuxt issue tracker and upgrade guides. If you use the same key for different data, Nuxt will reuse the first handler and data, which leads to the bug you observed. Making the key dynamic is the correct workaround and, in fact, the recommended approach for this scenario Nuxt 3.17.4 - useAsyncData is caching parameters. So, you did not misconfigure anything—this is a quirk of how useAsyncData works in recent Nuxt versions, and your workaround is the right solution. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai•3mo ago
<@370382517720580099> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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