I need React-Native Library for Google Maps

We developed a React-Native mobile app which interacts with Google maps using Google SDK for Maps (Java API for Google Maps). Our purpose is to load Polygons layers on google maps in android and iOS app via open source React-native platform.
We need this project to be done urgently so only those should apply who are expert to do this job, Otherwise please do not waste time of yours, mine and deserving people.