where should react js fetch point to code example
Example 1: 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))
}
Example 2: using componentdidmount with fetch
import React, { Component } from 'react';
class App extends Component {
constructor(props) {
super(props);
this.state = {
data: null,
};
}
componentDidMount() {
fetch('https://api.mydomain.com')
.then(response => response.json())
.then(data => this.setState({ data }));
}
...
}
export default App;