SDK API Reference

The Expo SDK provides access to system functionality such as contacts, camera, and social login. It is provided by the npm package expo. Install it by running npm install --save expo in the root directory of the project. Then you can import modules from it in your JavaScript code as follows:
import { Contacts } from 'expo';
You can also import all Expo SDK modules:
import Expo from 'expo';
This allows you to write Expo.Contacts.getContactsAsync(), for example.

Each month there is a new Expo SDK release that typically updates to the latest version of React Native and includes a variety of bugfixes, features and improvements to the Expo APIs. It's often useful to know what version of React Native your Expo project is running on, so the following table maps Expo SDK versions to their included React Native version.
Expo SDK VersionReact Native Version