05-dependency-a.ts

import { PostService } from './05-dependency-b';
import { JsonDatabaseService, LocalDataBaseService, WebApiService } from './05-dependency-c';

// Main
(async () => {
  // const provider = new JsonDatabaseService();
  // const provider = new LocalDataBaseService();
  const provider = new WebApiService();

  const postService = new PostService(provider);

  const posts = await postService.getPosts();

  console.log({ posts });
})();