react_request

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A Tiny Custom React hooks for making request.

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# 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]
```

react_request

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