catch fetch javascript code example
Example 1: try catch fetch
fetch("/api/foo")
.then( response => {
if (!response.ok) { throw response }
return response.json() //we only get here if there is no error
})
.then( json => {
this.props.dispatch(doSomethingWithResult(json))
})
.catch( err => {
err.text().then( errorMessage => {
this.props.dispatch(displayTheError(errorMessage))
})
})
Example 2: fetch catch
fetch(url).then((response) => {
if (response.ok) {
return response.json();
} else {
throw new Error('Something went wrong');
}
})
.then((responseJson) => {
// Do something with the response
})
.catch((error) => {
console.log(error)
});