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https://github.com/RyanRoll/react-use-api
Async HTTP request data for axios. Designed for diverse UI states, SSR and data pre-caching.
https://github.com/RyanRoll/react-use-api
axios create-react-app npm npm-package react react-hooks server-side-rendering ssr typescript yarn yarn-package
Last synced: about 1 month ago
JSON representation
Async HTTP request data for axios. Designed for diverse UI states, SSR and data pre-caching.
- Host: GitHub
- URL: https://github.com/RyanRoll/react-use-api
- Owner: RyanRoll
- License: mit
- Created: 2019-05-14T15:51:56.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2023-01-06T01:53:29.000Z (almost 2 years ago)
- Last Synced: 2024-04-24T18:55:29.055Z (8 months ago)
- Topics: axios, create-react-app, npm, npm-package, react, react-hooks, server-side-rendering, ssr, typescript, yarn, yarn-package
- Language: TypeScript
- Homepage:
- Size: 1.61 MB
- Stars: 62
- Watchers: 2
- Forks: 5
- Open Issues: 26
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
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README
React useApi()
[](https://www.npmjs.com/package/react-use-api)
[](https://travis-ci.org/RyanRoll/react-use-api)
[](https://coveralls.io/github/RyanRoll/react-use-api?branch=master)
[Axios](https://github.com/axios/axios)-based React hooks for async HTTP request data. `react-use-api` feeds API data to React components when SSR (Server-Side Rendering), and caches the data to Front-End. `react-use-api` makes your code consistent between the two sides and also supports diverse UI states for your application.
> TypeScript Support
> Thread-safe SSR
## Installation
❗*Axios is a peer dependency (prerequisite) and it has to be installed*
### NPM
```bash
// NPM
$ npm i react-use-api axios
// or yarn
$ yarn add react-use-api axios
```
## Usage
### Setup With ApiProvider
```tsx
import React from 'react'
import ReactDom from 'react-dom'
import useApi, { ApiProvider } from 'react-use-api'
import App from './App'
// This is optional from client side
const apiContext = {
settings: {
cache: new LRU(),
axios: axios as AxiosStatic | AxiosInstance,
maxRequests: 50, // max requests count when running ReactDom.renderToString in SSR
useCacheData: true, // whether to use the cached api data come from server
alwaysUseCache: false, // whether to use the cached api data always for each api call
clearLastCacheWhenConfigChanges: true, // clear the last cache data with the last config when the config changes
debug: false,
clientCacheVar: '__USE_API_CACHE__', // the property name of window to save the cached api data come from server side
isSSR: (...args: any[]): boolean | void => typeof window === 'undefined',
renderSSR: (...args: any[]): string => '', // a callback to render SSR HTML string
shouldUseApiCache: (
config?: ReactUseApi.Config,
cacheKey?: string
): boolean | void => true, // a callback to decide whether to use the cached api data
},
}
ReactDom.render(
,
document.getElementById('root')
)
```
### React Hooks
```tsx
import React from 'react'
import useApi from 'react-use-api'
export const Main = () => {
const [data, { loading, error }, request] = useApi({
url: '/api/foo/bar',
})
return (
<>
{loading &&
Loading...}
{error && {error.response.data.errMsg}}
{data && (
<>
Hello! {data.username}
Reload
>
)}
>
)
}
```
## Parameters
### Types
```ts
const [data, state, request] = useApi(
config: string | ReactUseApi.SingleConfig | ReactUseApi.MultiConfigs,
options?: ReactUseApi.Options | ReactUseApi.Options['handleData']
)
```
### Code
```tsx
const [data, state, request] = useApi(config, options)
// request the API data again, omit options.useCache=true
request(config?: ReactUseApi.Config, keepState = false)
```
With a custom TypeScript data type
```tsx
interface IMyData {
foo: string
bar: string
}
const [data, state, request] = useApi(config, options)
```
## Advanced Usages
### Fetching API data forcibly
`useApi` calls API once only and retains data and state regardless of each time component rerendering unless the config changes. This act is same as invoking `request()`.
```tsx
import React, { useState } from 'react'
import useApi from 'react-use-api'
export const Page = () => {
const [page, setPage] = useState(1)
const [data, { loading }, request] = useApi({
url: '/api/foo/bar',
params: {
page,
},
})
return (
<>
{data?.title ?? 'Hello'}
setPage(++page)}>Next
>
)
}
```
### Cache mechanism
If your application works with SSR, `useApi` will use cached API data instead of calling API when rendering your application on client side for the first time.
On the other hand, `options.useCache` allows you to tag the API to be saved in cache and share it with the components using the same API.
```tsx
import React from 'react'
import useApi from 'react-use-api'
const Card = (useCache) => {
const [data, , request] = useApi('/api/foo/bar', { useCache })
return (
<>
<>{data?.name}>
Refresh // call api, never use cache data
>
)
}
// without cache and SSR
const Page = () => {
return (
<>
// call api
// call api
>
)
}
// with useCache
const Page = () => {
return (
<>
// call api
// use cache data
// use cache data as well if cache exists
// call api and never use cache data
>
)
}
```
> `options.useCache=false` means never using cache data
### Decision to use cache data globally
```tsx
import React from 'react'
import ReactDOM from 'react-dom'
import { ApiProvider, loadApiCache } from 'react-use-api'
import App from './components/App'
loadApiCache()
const apiContext = {
settings: {
shouldUseApiCache(config, cacheKey) {
// return false to deny
if (config.url == '/api/v1/doNotUseCache') {
return false
}
return true // default to return true
},
alwaysUseCache: true, // set true to make ptions.useCache=true
},
}
ReactDOM.render(
,
document.getElementById('root')
)
```
### Manually cache data clearing
```tsx
import React, { useContext } from 'react'
import { useApi, ApiContext } from 'react-use-api'
const App = (props) => {
const apiContext = useContext(ApiContext)
const { settings, clearCache } = apiContext
clearCache()
}
```
### Skipping useApi
```tsx
import React from 'react'
import useApi from 'react-use-api'
const Page = (props) => {
const [data] = useApi('/api/foo/bar', { skip: true }) // never call this API
return <>{!data && 'No data'}>
}
```
### Pagination or infinite scrolling
```tsx
import React, { useState, useMemo, useCallback } from 'react'
import useApi from 'react-use-api'
export const Main = () => {
const [offset, setOffset] = useState(0)
const limit = 10
const options = useMemo(
() => ({
handleData,
dependencies: {
limit,
},
}),
[limit]
)
// hasMore is a custom state here
const [data, { loading, error, hasMore = true }, request] = useApi(
getAPiList(),
options
)
const loadMore = useCallback(() => {
const nextOffset = offset + limit
// fetch the data and keep the current state and prevData
request(getAPiList(nextOffset, limit), true)
setOffset(nextOffset)
}, [offset])
return (
<>
{loading &&
Loading...}
{error && {error.response.data.errMsg}}
{data && (
<>
{data.list.map(({ name }) => (
{name}
))}
{hasMore && Load More}
>
)}
>
)
}
export const getAPiList = (offset, limit) => ({
url: '/api/list',
params: {
offset,
limit,
},
})
// [IMPORTANT] Using any state setter in handleData is not allowed,
// it will cause the component re-rendering infinitely while SSR rendering.
export const handleData = (state) => {
const { prevData = [], response, dependencies, error } = state
if (!error) {
const {
data: { userList },
} = response
const { limit } = dependencies
if (userList.length < limit) {
// update hasMore
state.hasMore = false
}
return [...prevData, ...userList]
} else {
// show an error message from the api
console.log(error.response.data.msg)
}
}
```
## Config
The config can be an [Axios Request Config](https://github.com/axios/axios#request-config) or a URL string.
```tsx
const [data, state] = useApi('/api/foo/bar')
// equals to
const [data, state] = useApi({
url: '/api/foo/bar',
})
```
### Options [Optional]
| Name | Type | default | Description |
| ------------- | --------------------------------------------- | ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| handleData | Function(data: any, state: ReactUseApi.State) | | A callback function to deal with the data of the API's response. **IMPORTANT** Using any state setter in handleData is dangerous, which will cause the component re-rendering infinitely while SSR rendering. |
| dependencies | Object | | The additional needed data using in handleData. `NOTE`: "dependencies" is supposed to immutable due to React's rendering policy. |
| shouldRequest | Function | () => false | A callback to decide whether useApi re-fetches the API when `only re-rendering`. Returning true will trigger useApi to re-fetch. This option is helpful if you want to re-request an API when a route change occurs. |
| watch | any[] | [] | An array of values that the effect depends on, this is the same as the second argument of useEffect. |
| skip | Boolean | false | Sets true to skip API call. |
| useCache | Boolean | -- | Sets true to use cached API data if cache exists (calling API and then saves it if there is no cache). Sets false to call API always. By default, `useApi` uses the cached data provided from SSR. |
## State
### First State (before calling API)
The first state has only one property `loading` before calling API.
| Name | Type | Default | Description |
| --------- | ------- | ------- | ------------------------------------------------- |
| loading | boolean | false | To indicate whether calling api or not. |
| fromCache | boolean | false | To tell whether the data come from SSR API cache. |
#### Full State (after calling API)
The is the full state data structure after the api has responded.
| Name | Type | Default | Description |
| ------------- | ----------------- | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| loading | boolean | false | To indicate whether calling api or not. |
| fromCache | boolean | false | To tell whether the data come from SSR API cache. |
| data | any | undefined | The processed data provided from `options.handleData`. |
| response | AxiosResponse | undefined | The Axios' response. |
| error | AxiosError | undefined | The Axios' error. |
| dependencies | Object | undefined | The additional needed data using in handleData. `NOTE`: "dependencies" is supposed to immutable due to React's rendering policy. |
| prevData | any | undefined | The previous data of the previous state. |
| prevState | ReactUseApi.State | undefined | The previous state. |
| [custom data] | any | | You can add your own custom state data into the state by setting up in `options.handleData`. For example, `state.foo = 'bar'`. The data always be preserved whether re-rendering. |
#### Request Function
A function allows requesting API data again. This function will trigger re-render.
| Name | Type | Default | Description |
| ---------- | ------------------ | ------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- |
| config | ReactUseApi.Config | The config passed from useApi() | An axios' config object to fetch API data. |
| keepState | boolean | false | Set to true to maintain current state data, which facilitates combining previous data with current data, such as table list data. |
| revalidate | boolean | false | Set to true to fetch API without using cache data. |
### Server Side Rendering (SSR)
The biggest advantage of `react-use-api` is to make your code consistent for both client and server sides. Unlike using Next.js or Redux, these require you to fetch API data by yourself before feeding it to the React component. `react-use-api` does the chores for you and saves all your API data as cache for client side.
`react-use-api` guarantees that the SSR for each HTTP request is thread-safe as long as passing the api context with SSR settings to `ApiProvider`.
Please be aware that no lifecycle methods will be invoked when SSR.
#### SSR and injecting cached api data
```tsx
// server/render.js (based on Express framework)
import React from 'react'
import ReactDomServer from 'react-dom/server';
import { StaticRouter } from 'react-router-dom'
import { ApiProvider, injectSSRHtml } from 'react-use-api'
import App from '../../src/App'
export const render = async (req, axios) => {
const { url } = req
const apiContext = {
// configure your global options or SSR settings
settings: {
axios, // to set your custom axios instance
isSSR: () => true, // we are 100% sure here is SSR mode
},
}
const routerContext = {}
const renderSSR = () =>
ReactDomServer.renderToString(
)
const html = await injectSSRHtml(apiContext, renderSSR)
return html
}
```
**The cache data has been inserted into your SSR HTML string as well.**
> The cache data will be cleaned up after calling loadApiCache() by default
```html
window.__USE_API_CACHE__ = '[{ ... }]' // the cache data
```
#### SSR Settings of apiContext (ReactUseApi.CustomSettings)
_Each property is optional_
| Name | Type | Default | Description |
| ------------------------------- | ----------------------------------------- | --------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| cache | LRU | new LRU() | The cache instance based on lru-cache |
| axios | AxiosStatic \| AxiosInstance | axios | axios instance (http client) |
| maxRequests | number | 100 | The maximum of API requests when SSR |
| useCacheData | boolean | true | Set true to inject JS cache data into html when calling `injectSSRHtml()` |
| alwaysUseCache | boolean | false | Set true to use cache data always (equivalent to `options.useCache = true`) |
| clearLastCacheWhenConfigChanges | boolean | true | This is default behavior that the cached data will be removed once the url config of useApi has been changed. Set false to remain the cached data |
| debug | boolean | true | Set true to get debug message from console |
| clientCacheVar | string | 'USE_API_CACHE' | The JS variable name of cache data |
| renderSSR | Function | () => '' | A callback to render SSR string for injectSSRHtml() |
| isSSR | Function | () => typeof window === 'undefined' | A function to determine if the current environment is server |
| shouldUseApiCache | Function | (config?: ReactUseApi.Config, cacheKey?: string): boolean | Returns true to enable useApi to get the API data from API cache, which is loaded by `loadApiCache`. Default is true |
#### Arguments of injectSSRHtml
```tsx
injectSSRHtml(
context: ReactUseApi.CustomContext,
renderSSR?: () => string,
postProcess?: (ssrHtml: string, apiCacheScript: string) => string, // a callback for after rendering SSR HTML string
): string
```
#### SSR - Load cached API data
Please don't forget to invoke `loadApiCache()` to load the cached API data come from your server side. useApi will use the cache data instead of calling API when rendering your application for the first time.
```tsx
// src/index.jsx
import React from 'react'
import ReactDOM from 'react-dom'
import { ApiProvider, loadApiCache } from 'react-use-api'
import App from './components/App'
const rootElement = document.getElementById('root')
const method = rootElement.hasChildNodes() ? 'hydrate' : 'render'
loadApiCache()
ReactDOM[method](
,
rootElement
)
```
## TypeScript Support
All the associated types are provided by the namespace [ReactUseApi](src/typings.d.ts) as long as importing `react-use-api`.
> NOTE, this only works if you set up compilerOptions.typeRoots: ["node_modules/@types"] in your tsconfig.json.
> Support TypeScript v2.9+ only
## License
MIT
Icons made by [Eucalyp](https://www.flaticon.com/authors/eucalyp) from [www.flaticon.com](https://www.flaticon.com) is licensed by [CC 3.0 BY](http://creativecommons.org/licenses/by/3.0).