Nuxt Data Fetching
useFetch, useAsyncData, $fetch, lazy fetching, error handling, refresh, data caching
1What is the main difference between useFetch and useAsyncData in Nuxt?
What is the main difference between useFetch and useAsyncData in Nuxt?
Cevap
useFetch is a wrapper around useAsyncData and $fetch that simplifies common API calls. It automatically handles URL construction and accepts a URL directly as the first argument, while useAsyncData requires a unique key and a custom fetcher function. Use useFetch for simple API calls, useAsyncData for complex fetching logic.
2Why is it recommended to always provide a unique key when using useAsyncData?
Why is it recommended to always provide a unique key when using useAsyncData?
Cevap
The unique key allows Nuxt to identify and deduplicate requests between server and client during SSR hydration. Without a unique key, data might be unnecessarily re-fetched on the client after server rendering, or cache conflicts could occur. The key also serves for caching and state management.
3What is the difference between $fetch and useFetch in Nuxt?
What is the difference between $fetch and useFetch in Nuxt?
Cevap
$fetch is a utility function that performs simple HTTP requests without state management or reactivity, similar to native fetch but with Nuxt enhancements. useFetch is a composable that returns reactive refs (data, pending, error) and handles SSR hydration. Use $fetch for imperative calls in event handlers, useFetch for declarative fetching in components.
How to enable lazy fetching with useFetch or useAsyncData?
How to handle errors during data fetching with useFetch?
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