react data fetching code example
Example 1: suspense react
import React, {Suspense} from 'react;
const ProfilePage = React.lazy(() => import('./ProfilePage'));
<Suspense fallback={<Spinner />}>
<ProfilePage />
</Suspense>
Example 2: React get method
componentWillMount(){
fetch('/getcurrencylist',
{
method: "get",
dataType: 'json',
})
.then((res) => res.json())
.then((data) => {
var currencyList = [];
for(var i=0; i< data.length; i++){
var currency = data[i];
currencyList.push(currency);
}
console.log(currencyList);
this.setState({currencyList})
console.log(this.state.currencyList);
})
.catch(err => console.log(err))
}