This API project is not authorized to use this API. Please ensure this API is activated in the Google Developers Console: https://console.developers.google.com/apis/api/places_backend?project=_ For more information on authentication and Google Maps Javascript API services please see: https://developers.google.com/maps/documentation/javascript/get-api-key
Is there any other proposed solutions?No, this is the only way to get Google API key.