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react-native-env

Access the iOS environment from React Native.

Installation

1. npm install react-native-env
2. In XCode's "Project navigator", right click on project's name ➜ Add Files to <...>
3. Go to node_modules ➜ react-native-env ➜ add RNEnvironmentManagerIOS folder
4. Add an environment.plist to your project containing any key-values to be accessed at runtime.
5. Compile and have some environment

Per-environment Config

Follow the excellent, long tutorial Migrating iOS App Through Multiple Environments to derive environment.plist at build-time, based on the selected Xcode scheme.

Usage

var EnvironmentManager = require('react-native-env');
 
// read an environment variable from React Native
EnvironmentManager.get('SOME_VARIABLE')
  .then((val) => {
    console.log('value of SOME_VARIABLE is: ', val); // => value of SOME_VARIABLE is: MY_VALUE
  })
  .catch((err) => {
    console.error('womp womp: ', err.message);
  });
 
// Read an environment variable synchronously.
// Downside of this approach is that if environment.plist
// changes during runtime, those changes will not be reflected
// by getSync.
var val = EnvironmentManager.getSync('SOME_VARIABLE');
console.log('value of SOME_VARIABLE is: ', val);

Roadmap

• Not sure, what do we need?

PR's welcome!