I would wish to submit my react-native app to app store, but I don't know how to build it.
I've been following this official doc of react-native (http://reactnative.dev/docs/running-on-device#building-your-app-for-production) about how to build my app for production, but sadly in my case it does not quite give enough information.
Regarding building an app, the guide says this:
You can now build your app for release by tapping ⌘B or selecting Product → Build from the menu bar. Once built for release, you'll be able to distribute the app to beta testers and submit the app to the App Store.
And I can do this. But the problem is, that I need to build my app with an ENVFILE environment variable that defines where my applications configurations are read from.
With this in mind, the official guide also states:
You can also use the React Native CLI to perform this operation using the option --configuration with the value Release (e.g. npx react-native run-ios --configuration Release).
This is almost what I want. But I don't want to run my app. I just want to build it. So is there a way to build my app with the react-native cli tool? Without running it? Or could I just run it and in the process it gets build and I could find the final build in some folder then? Or if this doesn't work, could I then some way configure the ENVFILE environment variable to xcode that my app will get it?