I'm trying to add debounce to my application before I do an api call. However when I introduce debouce, it seems like my await is ignored and the function calls due to missing values
export default class App extends Component {
state = {
search: "Cats",
results: []
};
async search(text) {
const giphy = {
baseURL: "https://api.giphy.com/v1/gifs/search",
apiKey: "0UTRbFtkMxAplrohufYco5IY74U8hOes",
tag: text
};
let giphyURL = encodeURI(
giphy.baseURL + "?api_key=" + giphy.apiKey + "&q=" + giphy.tag
);
let data = await fetch(giphyURL);
return data.json();
}
async componentDidMount() {
// get default search
this.onSearch(this.state.text);
}
setSearch = e => {
this.setState({ search: e.target.value });
debounce(() => this.onSearch(this.state.search), 100);
};
async onSearch(text) {
console.log("text:", text);
try {
let response = await this.search(this.state.search);
console.log("data:", response.data);
// console.log(data.results);
let data = response.data.reduce((t, { title, id, images }) => {
t.push({ title, id, url: images.downsized_medium.url });
return t;
}, []);
this.setState({ results: data });
} catch (e) {
console.error("Failed Fetch", e.toString());
}
}
render() {
return (
<main className="app">
<Header>This is my Gif Search App</Header>
<nav className="navbar">
<SearchBox onSearch={this.setSearch} value={this.state.search} />
</nav>
<aside className="sidebar">Sidebar Bar</aside>
<section className="results">
<Results results={this.state.results} />
</section>
<footer className="footer">
<p className="footer-text">Copyright @funssies 2019</p>
</footer>
</main>
);
}
}
Error: in the setSearch method, I wrapped the call to get data in debounce but nothing happens.
I think I figured it out. Deboune returns a function. Then I have to invoke that function
For example:
let myFunc = debounce(this.someFunction,100)
// call debounced function
myFunc()
I changed my function to this:
delayedSearch = debounce(this.onSearch, 1500);
setSearch = e => {
this.setState({ search: e.target.value });
this.delayedSearch(this.state.search);
};
Found help here: lodash debounce not working in anonymous function
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