rn-config-context-1.ts

// config.ts
import Config from 'react-native-config';

export interface Store {
  config: Config;
}

type EnvKeys = 'SOME_API_KEY';

interface Config {
  testValue: number;
  env: {
    [key in EnvKeys]: string;
  };
}

const initialStore: Store = {
  config: {
    testValue: 42,
    env: {
      SOME_API_KEY: Config.SOME_API_KEY,
    },
  },
};