React — Requesting data using Fetch - api

Question

I am trying to get some data from an API using Fetch without success. For some reason the request is failing and I am not able to render the data... as I am quite new to React and Fetch I am not sure where the error is. Is it something to do with the way I am requesting the API?
Thank you in advance
class App extends React.Component {
render() {
return <Data />
}
}
class Data extends React.Component {
constructor(props) {
super(props)
this.state = {
requestFailed: false,
}
}
componentDidMount() { // Executes after mouting
fetch('https://randomuser.me/api/')
.then(response => {
if (!request.ok) {
throw Error("Network request failed.")
}
return response
})
.then(d => d.json())
.then(d => {
this.setState({
data: d
})
}, () => {
this.setState({
requestFailed: true
})
})
}
render() {
if(this.state.requestFailed) return <p>Request failed.</p>
if(!this.state.data) return <p>Loading</p>
return (
<h1>{this.state.data.results[0].gender}</h1>
);
}
}
ReactDOM.render(<App />, document.getElementById('app'));
CodePen

Answer 1

As mentioned on the GITHUB docs, you can implement the fetch like
fetch('https://randomuser.me/api/')
.then((response) => {
return response.json()
}).then((d) => {
console.log('parsed json', d)
this.setState({
data: d
});
}).catch(function(ex) {
console.log('parsing failed', ex)
this.setState({
requestFailed: true
})
})
CODEPEN

Answer 2

fetch method should be
fetch('your_url')
.then (
response => {
if (response.status !== 200) {
return 'Error. Status Code: ' + response.status
}
response.json().then(result => console.log(result)) // do sth with data
}
)
.catch(function(err) {
console.log('Opps Error', err)
})

Answer 3

I think your problem is with
.then(response => {
if (!request.ok) {
throw Error("Network request failed.")
}
return response
})
There's no request object that has the property ok. Maybe you mean to check response.ok ?
.then(response => {
if (!response.ok) {
throw Error("Network request failed.")
}
return response
})