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39 lines
1.1 KiB
Markdown
39 lines
1.1 KiB
Markdown
# `useHydration`
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Allows full control of the hydration cycle to set and receive data from the server.
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`useHydration` is a built-in composable that provides a way to set data on the server side every time a new HTTP request is made and receive that data on the client side. This way `useHydration` allows you to take full control of the hydration cycle.
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## Type
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```ts [signature]
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useHydration <T> (key: string, get: () => T, set: (value: T) => void) => {}
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```
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You can use `useHydration()` within composables, plugins and components.
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`useHydration` accepts three parameters:
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- `key`
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**Type**: `String`
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`key` is a unique key that identifies the data in your Nuxt application
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- `get`
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**Type**: `Function`
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`get` is a function that returns the value to set the initial data
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- `set`
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**Type**: `Function`
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`set` a function that receives the data on the client-side
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Once the initial data is returned using the `get` function on the server side, you can access that data within `nuxtApp.payload` using the unique key that is passed as the first parameter in `useHydration` composable.
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::ReadMore{link="/docs/getting-started/data-fetching"}
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::
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