clean-nest-book-controller.ts

import { Controller, Post, Body } from '@nestjs/common';
import { CreateBookDto, CreateBookResponseDto } from '../core/dtos';
import { BookServices, BookFactoryService } from '../services/use-cases/book';

@Controller('api/book')
export class BookController {
  constructor(
    private bookServices: BookServices,
    private bookFactoryService: BookFactoryService,
  ) {}

  @Post()
  async createBook(@Body() bookDto: CreateBookDto) {
    const createBookResponse = new CreateBookResponseDto();
    try {
      const book = this.bookFactoryService.createNewBook(bookDto);
      const createdBook = await this.bookServices.createBook(book);

      createBookResponse.success = true;
      createBookResponse.createdBook = createdBook;
      
    } catch (error) {
      // report and log error
      createBookResponse.success = false;
    }

    return createBookResponse;
  }
}