質問編集履歴
3
UIの追加
test
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@@ -1,4 +1,4 @@
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現在FirebaseのでタータベースからデータをもらってAPIを叩いているのですが、このようなエラーが起こってしまいました。
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現在FirebaseのでタータベースからデータをもらってAPIを叩いているのですが、このようなエラーが起こってしまいました。
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```ここに言語を入力
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2
コードの追加
test
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test
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@@ -19,3 +19,269 @@
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ご教授いただけると幸いです。
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Search.js
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```
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import React,{useState,useEffect} from 'react';
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import Card from '../UI/Card';
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import './Search.css';
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const Search = React.memo(props => {
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const {onLoadIngredients} = props
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const [enteredFilter,setEnteredFilter] = useState('');
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useEffect(() => {
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const query =
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enteredFilter.length === 0
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? ''
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: `?orderBy="title"&equalTo="${enteredFilter}"`;
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fetch(`https://react-hooks-update-676a6.firebaseio.com/ingredients.json${query}`,
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)
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.then(response => {
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console.log(response);
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response.json()
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})
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.then(responseData => {
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console.log(responseData)
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const loadedIngredients = [];
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for (const key in responseData) {
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loadedIngredients.push({
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id: key,
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title: responseData[key].title,
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amount: responseData[key].amount
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});
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}
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onLoadIngredients(loadedIngredients);
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});
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}, [enteredFilter, onLoadIngredients]);
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return (
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<section className="search">
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<Card>
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<div className="search-input">
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<label>Filter by Title</label>
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<input
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type="text"
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value={enteredFilter}
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onChange={event => setEnteredFilter(event.target.value)}
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/>
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</div>
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</Card>
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</section>
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);
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});
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export default Search;
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```
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Ingredients.js
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```
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import React,{useState,useEffect,useCallback} from 'react';
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import IngredientList from './IngredientList'
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import IngredientForm from './IngredientForm';
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import Search from './Search';
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function Ingredients() {
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const [useringredients,setUserIngredients] = useState([]);
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useEffect(() =>{
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fetch('https://react-hooks-update-676a6.firebaseio.com/ingredients.json').then(
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responese=>responese.json()
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).then(responeseData=>{
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const loadedIngredients = [];
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for(const key in responeseData){
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loadedIngredients.push({
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id:key,
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title:responeseData[key].title,
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amount:responeseData[key].amount
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})
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}
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setUserIngredients(loadedIngredients);
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})
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},[]);
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useEffect(() =>{
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console.log('RENDRING INGREDIENTS',useringredients)
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},[useringredients])
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const filteredIngredientsHandler = useCallback(filteredIngredients => {
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setUserIngredients(filteredIngredients);
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}, []);
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const addIngredientHandler = ingredient => {
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fetch('https://react-hooks-update-676a6.firebaseio.com/ingredients.json', {
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method: 'POST',
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body: JSON.stringify(ingredient),
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headers: { 'Content-Type': 'application/json' }
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})
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.then(response => {
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return response.json();
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})
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.then(responseData => {
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setUserIngredients(prevIngredients => [
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...prevIngredients,
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{ id: responseData.name, ...ingredient }
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]);
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});
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};
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const removeIngredientHandler = ingredientId => {
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setUserIngredients(prevIngredients =>
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prevIngredients.filter(ingredient => ingredient.id !== ingredientId)
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);
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};
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return (
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<div className="App">
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<IngredientForm onAddIngredient={addIngredientHandler}/>
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<section>
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<Search onLoadIngredients={filteredIngredientsHandler}/>
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<IngredientList ingredients={useringredients} onRemoveItem={removeIngredientHandler}/>
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</section>
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</div>
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);
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}
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export default Ingredients;
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```
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こちらコードです。
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現在Udemyを元に学習しているので、中々質問がしづらくなってしまいました。
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287
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よろしくお願いします。
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1
エラーメッセージ
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -2,7 +2,11 @@
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|
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2
2
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3
3
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```ここに言語を入力
|
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4
4
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5
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-
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5
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{
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6
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"error" : "Index not defined, add \".indexOn\": \"title\", for path \"/ingredients\", to the rules"
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}
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10
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```
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