f5792c40be
Pulled ALL skills from 15 source repositories: - anthropics/skills: 16 (docs, design, MCP, testing) - obra/superpowers: 14 (TDD, debugging, agents, planning) - coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth) - better-auth/skills: 5 (auth patterns) - vercel-labs/agent-skills: 5 (React, design, Vercel) - antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo) - Plus 13 individual skills from various repos Mosaic Stack is not limited to coding — the Orchestrator and subagents serve coding, business, design, marketing, writing, logistics, analysis, and more. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
135 lines
3.4 KiB
Markdown
135 lines
3.4 KiB
Markdown
---
|
|
category: State
|
|
---
|
|
|
|
# useStorageAsync
|
|
|
|
Reactive Storage in with async support.
|
|
|
|
## Usage
|
|
|
|
The basic usage please refer to `useStorage`.
|
|
|
|
## Wait First Loaded
|
|
|
|
When user entering your app, `useStorageAsync()` will start loading value from an async storage,
|
|
sometimes you may get the default initial value, not the real value stored in storage at the very
|
|
beginning.
|
|
|
|
```ts
|
|
import { useStorageAsync } from '@vueuse/core'
|
|
|
|
const accessToken = useStorageAsync('access.token', '', SomeAsyncStorage)
|
|
|
|
// accessToken.value may be empty before the async storage is ready
|
|
console.log(accessToken.value) // ""
|
|
|
|
setTimeout(() => {
|
|
// After some time, the async storage is ready
|
|
console.log(accessToken.value) // "the real value stored in storage"
|
|
}, 500)
|
|
```
|
|
|
|
In this case, you can wait the storage prepared, the returned value is also a `Promise`,
|
|
so you can wait it resolved in your template or script.
|
|
|
|
```ts
|
|
// Use top-level await if your environment supports it
|
|
const accessToken = await useStorageAsync('access.token', '', SomeAsyncStorage)
|
|
|
|
console.log(accessToken.value) // "the real value stored in storage"
|
|
```
|
|
|
|
If you must wait multiple storages, put them into a `Promise.allSettled()`
|
|
|
|
```ts
|
|
router.onReady(async () => {
|
|
await Promise.allSettled([
|
|
accessToken,
|
|
refreshToken,
|
|
userData,
|
|
])
|
|
|
|
app.mount('app')
|
|
})
|
|
```
|
|
|
|
There is a callback named `onReady` in options:
|
|
|
|
```ts
|
|
import { useStorageAsync } from '@vueuse/core'
|
|
|
|
// Use ES2024 Promise.withResolvers, you may use any Deferred object or EventBus to do same thing.
|
|
const { promise, resolve } = Promise.withResolvers()
|
|
|
|
const accessToken = useStorageAsync('access.token', '', SomeAsyncStorage, {
|
|
onReady(value) {
|
|
resolve(value)
|
|
}
|
|
})
|
|
|
|
// At main.ts
|
|
router.onReady(async () => {
|
|
// Let's wait accessToken loaded
|
|
await promise
|
|
|
|
// Now accessToken has loaded, we can safely mount our app
|
|
|
|
app.mount('app')
|
|
})
|
|
```
|
|
|
|
Simply use `resolve` as callback:
|
|
|
|
```ts
|
|
const accessToken = useStorageAsync('access.token', '', SomeAsyncStorage, {
|
|
onReady: resolve
|
|
})
|
|
```
|
|
|
|
## Type Declarations
|
|
|
|
```ts
|
|
export interface UseStorageAsyncOptions<T>
|
|
extends Omit<UseStorageOptions<T>, "serializer"> {
|
|
/**
|
|
* Custom data serialization
|
|
*/
|
|
serializer?: SerializerAsync<T>
|
|
/**
|
|
* On first value loaded hook.
|
|
*/
|
|
onReady?: (value: T) => void
|
|
}
|
|
export declare function useStorageAsync(
|
|
key: string,
|
|
initialValue: MaybeRefOrGetter<string>,
|
|
storage?: StorageLikeAsync,
|
|
options?: UseStorageAsyncOptions<string>,
|
|
): RemovableRef<string> & Promise<RemovableRef<string>>
|
|
export declare function useStorageAsync(
|
|
key: string,
|
|
initialValue: MaybeRefOrGetter<boolean>,
|
|
storage?: StorageLikeAsync,
|
|
options?: UseStorageAsyncOptions<boolean>,
|
|
): RemovableRef<boolean> & Promise<RemovableRef<boolean>>
|
|
export declare function useStorageAsync(
|
|
key: string,
|
|
initialValue: MaybeRefOrGetter<number>,
|
|
storage?: StorageLikeAsync,
|
|
options?: UseStorageAsyncOptions<number>,
|
|
): RemovableRef<number> & Promise<RemovableRef<number>>
|
|
export declare function useStorageAsync<T>(
|
|
key: string,
|
|
initialValue: MaybeRefOrGetter<T>,
|
|
storage?: StorageLikeAsync,
|
|
options?: UseStorageAsyncOptions<T>,
|
|
): RemovableRef<T> & Promise<RemovableRef<T>>
|
|
export declare function useStorageAsync<T = unknown>(
|
|
key: string,
|
|
initialValue: MaybeRefOrGetter<null>,
|
|
storage?: StorageLikeAsync,
|
|
options?: UseStorageAsyncOptions<T>,
|
|
): RemovableRef<T> & Promise<RemovableRef<T>>
|
|
```
|