I am currently doing an R&D in React Native.

I have a requirement where I need to add some modules(Basically code) in the app.

It is impossible in native iOS app to do so.

In React native apps using tools like [AppHub](https://apphub.io/) and [CodePush](https://microsoft.github.io/code-push/), we can push builds to production app.
There is a library [React Native Auto Updater](https://github.com/redbooth/react-native-auto-updater) for downloading latest js bundle but it is deprecated now.

Using the above tools, I need to push the build.

I have a scenario where I want the app to fetch and download the bundle kept on a remote server.

So, How can I download JS Code on making a rest API call from App and refresh the app as per the new JS code?

My concern is regarding download of JS Code.
I am clear on the Auto Update of apps part.

Thanks in advance.