Require module defined in react-native-config

rn-cli.config.js

# rn-cli.config.js

const fs = require('fs');
const ini = require('ini');
const path = require('path');

let config = {};
if (process.env.ENVFILE) {
  config = ini.parse(fs.readFileSync(path.resolve(__dirname, process.env.ENVFILE), 'utf-8'));
}

module.exports = {
  extraNodeModules: {
    'APP_THEME': path.resolve(__dirname, 'src/themes/' + config.APP_THEME)
  },
};

ROOT.js

# src/Root.js

import theme from 'APP_THEME'; // extraNodeModule defined in `rn-cli.config.js`

class Root extends Component {
  store = getStore()

  render() {
    return (
      <Provider store={this.store}>
        <ThemeProvider theme={theme}>
          <App />
        </ThemeProvider>
      </Provider>
    );
  }
}

export default Root;