config files

index.ts

const storePublishedReviewsList = async (reviews: PublishedReviews) => {
  // callback to store data file
}

const retrivePublishedReviewsList = async (): Promise<PublishedReviews> => {
  // callback to retrive data from data source
}

const onNewMessageAvailable = async (messages: string[]) => {
  // callback of having new messages
}

const config: Config = {
  apps: [
      { id: "com.you.app", showAppIcon: true, publisherKey: "./api-key.json" },
      { id: "appstore-id", showAppIcon: true, regions: 'all' }
  ],
  storePublishedReviewsList,
  retrivePublishedReviewsList,
  onNewMessageAvailable
}