how to load google map in react js code example

Example: how to add google map in react js

import React, { Component } from 'react';import GoogleMapReact from 'google-map-react'; const AnyReactComponent = ({ text }) => <div>{text}</div>; class SimpleMap extends Component {  static defaultProps = {    center: {      lat: 59.95,      lng: 30.33    },    zoom: 11  };   render() {    return (      // Important! Always set the container height explicitly      <div style={{ height: '100vh', width: '100%' }}>        <GoogleMapReact          bootstrapURLKeys={{ key: /* YOUR KEY HERE */ }}          defaultCenter={this.props.center}          defaultZoom={this.props.zoom}        >          <AnyReactComponent            lat={59.955413}            lng={30.337844}            text="My Marker"          />        </GoogleMapReact>      </div>    );  }} export default SimpleMap;