As I want to create Route from my current location to a particular clicked marker in React. For Implementing this I am using React Google Map library ([react-google-maps](https://github.com/tomchentw/react-google-maps)) and it's direction example ([Direction Example](https://github.com/tomchentw/react-google-maps/blob/master/src/app/pages/basics/DirectionsExample.js)) but unfortunately I am unable to call `new google.maps.DirectionsService()` method in React component. It is giving me error as google is undefined.There is already open issue for the same scenario ([google is undefined](https://github.com/tomchentw/react-google-maps/issues/485))