AI prompts
base on A Tiny Custom React hooks for making request. # react-request
## Install
```bash
yarn add @blacktea/react-request
```
## Basic Usage
```jsx
import useRequest from '@blacktea/react-request'
import getFooApi from '@/utils/axios'
function App () {
const [{ loading, error, data }, fetch] = useRequest(getFooApi)
useEffect(() => { fetch() }, [fetch])
if (loading) return 'loading'
if (error) return 'error'
return data && <div>{data}</div>
}
```
## More Example
> Queries are typically start with loading, we can create a `useQuery` function before we use.
```js
function useQuery (api) {
return useRequest(api, { loading: true })
}
```
### Query
```jsx
function Query () {
const [{ loading, error, data }, fetch] = useQuery(queryFooApi)
useEffect(() => { fetch() }, [fetch])
if (loading) return 'loading...'
if (error) return 'error'
// no need to check data
return <div>{data}</div>
}
```
### Multi Query
```jsx
function MultiQuery () {
const [foo, fetchFoo] = useQuery(queryFooApi)
const [bar, fetchBar] = useQuery(queryBarApi)
useEffect(() => {
fetchFoo()
fetchBar()
}, [fetchFoo, fetchBar])
const renderContent = (state) => {
const { loading, error, data } = state
if (loading) return 'loading...'
if (error) return 'error'
return <div>{data}</div>
}
return (
<div>
{renderContent(foo)}
{renderContent(bar)}
</div>
)
}
```
### Batch Query
```jsx
function BatchQuery () {
const batchFetchApi = () => Promise.all([queryFooApi(), queryBarApi()])
const [{ loading, error, data }, fetch] = useQuery(batchFetchApi)
useEffect(() => { fetch() }, [fetch])
if (loading) return 'loading...'
if (error) return 'error'
const [foo, bar] = data
return (
<div>
<div>{foo}</div>
<div>{bar}</div>
<button onClick={fetch}>refetch batch</button>
</div>
)
}
```
### Mutate
```jsx
function Mutate () {
const [{ loading, error, data }, mutate] = useRequest(mutateBazApi)
const [value, setValue] = useState('')
useEffect(() => {
if (error) alert('error')
if (data === 'success') alert('success')
}, [error, data])
return (
<div>
<input value={value} onChange={(e) => setValue(e.target.value)} />
<button disabled={loading} onClick={() => mutate(value)}>submit</button>
</div>
)
}
```
## Api
```ts
type useRequest = (api, initialState) => [state, memoizedRequestCallback]
```
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