|
1 | | -import React, { useState, useEffect } from 'react'; |
| 1 | +import React, { Fragment,useState, useEffect } from 'react'; |
2 | 2 | import axios from 'axios'; |
3 | 3 |
|
4 | | -const useDataApi = url => { |
5 | | - const [isLoading, setLoading] = useState(false); |
6 | | - const [data, setData] = useState(null); |
| 4 | +const useDataApi = (url, defaultSearch, defaultState) => { |
| 5 | + const [data, setData] = useState(defaultState); |
| 6 | + const [search, setSearch] = useState(defaultSearch); |
| 7 | + const [isLoading, setIsLoading] = useState(false); |
| 8 | + const [isError, setIsError] = useState(false); |
7 | 9 |
|
8 | | - useEffect(async () => { |
9 | | - setLoading(true); |
| 10 | + useEffect( |
| 11 | + async () => { |
| 12 | + setIsError(false); |
| 13 | + setIsLoading(true); |
10 | 14 |
|
11 | | - const result = await axios(url); |
| 15 | + try { |
| 16 | + const result = await axios(`${url}${search}`); |
12 | 17 |
|
13 | | - setLoading(false); |
14 | | - setData(result.data); |
15 | | - }, []); |
| 18 | + setData(result.data); |
| 19 | + } catch (error) { |
| 20 | + setIsError(true); |
| 21 | + } |
16 | 22 |
|
17 | | - return { data, isLoading }; |
| 23 | + setIsLoading(false); |
| 24 | + }, |
| 25 | + [search], |
| 26 | + ); |
| 27 | + |
| 28 | + const doSearch = (event, query) => { |
| 29 | + setSearch(query); |
| 30 | + event.preventDefault(); |
| 31 | + }; |
| 32 | + |
| 33 | + return { data, isLoading, isError, doSearch }; |
18 | 34 | }; |
19 | 35 |
|
| 36 | +const INITIAL_SEARCH = 'redux'; |
| 37 | +const INITIAL_DATA = { hits: [] }; |
| 38 | + |
20 | 39 | function App() { |
21 | | - const { data, isLoading } = useDataApi( |
22 | | - 'http://hn.algolia.com/api/v1/search?query=redux', |
| 40 | + const [query, setQuery] = useState(INITIAL_SEARCH); |
| 41 | + |
| 42 | + const { data, isLoading, isError, doSearch } = useDataApi( |
| 43 | + 'http://hn.algolia.com/api/v1/search?query=', |
| 44 | + INITIAL_SEARCH, |
| 45 | + INITIAL_DATA, |
23 | 46 | ); |
24 | 47 |
|
25 | | - if (isLoading) { |
26 | | - return <div>Loading ...</div>; |
27 | | - } |
| 48 | + return ( |
| 49 | + <Fragment> |
| 50 | + <form onSubmit={event => doSearch(event, query)}> |
| 51 | + <input |
| 52 | + type="text" |
| 53 | + value={query} |
| 54 | + onChange={event => setQuery(event.target.value)} |
| 55 | + /> |
| 56 | + <button type="submit">Search</button> |
| 57 | + </form> |
28 | 58 |
|
29 | | - if (!data) { |
30 | | - return null; |
31 | | - } |
| 59 | + {isError && <div>Something went wrong ...</div>} |
32 | 60 |
|
33 | | - return ( |
34 | | - <ul> |
35 | | - {data.hits.map(item => ( |
36 | | - <li key={item.objectID}> |
37 | | - <a href={item.url}>{item.title}</a> |
38 | | - </li> |
39 | | - ))} |
40 | | - </ul> |
| 61 | + {isLoading ? ( |
| 62 | + <div>Loading ...</div> |
| 63 | + ) : ( |
| 64 | + <ul> |
| 65 | + {data.hits.map(item => ( |
| 66 | + <li key={item.objectID}> |
| 67 | + <a href={item.url}>{item.title}</a> |
| 68 | + </li> |
| 69 | + ))} |
| 70 | + </ul> |
| 71 | + )} |
| 72 | + </Fragment> |
41 | 73 | ); |
42 | 74 | } |
43 | 75 |
|
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