How to make AJAX call and in which component lifecycle methods should I make an AJAX call?
You can use AJAX libraries such as Axios, jQuery AJAX, and the browser built-in fetch
. You should fetch data in the componentDidMount()
lifecycle method. This is so you can use setState()
to update your component when the data is retrieved.
For example, the employees list fetched from API and set local state:
class MyComponent extends React.Component {constructor(props) {super(props);this.state = {employees: [],error: null,};}componentDidMount() {fetch('https://api.example.com/items').then((res) => res.json()).then((result) => {this.setState({employees: result.employees,});},(error) => {this.setState({ error });},);}render() {const { error, employees } = this.state;if (error) {return <div>Error: {error.message}</div>;} else {return (<ul>{employees.map((employee) => (<li key={employee.name}>{employee.name}-{employee.experience}</li>))}</ul>);}}}
October 06, 2022
674
Read more
What is React?
November 06, 2022
ReactJSHow to programmatically trigger click event in React?
November 06, 2022
ReactJS