Integrating React Native App in an Existing iOS Native App
For creating "node_modules" in the react native project:
$ cd IntegrationReactNative-master/React\ Native\ App/Bakesale
$ npm install
For running the iOS Native App:
$ cd IntegrationReactNative-master/iOS\ App/Native_iOS_App
$ pod install
open Native_iOS_App.xcworkspace
Run the project