saeedhajinasiri

import { Module } from '@nestjs/common';
import { BooksController } from './books.controller';
import { BooksService } from './books.service';
@Module({
  controllers: [BooksController],
  providers: [BooksService]
})
export class BooksModule {}

saeedhajinasiri

export class CreateBookDTO {
    readonly id: number;
    readonly title: string;
    readonly description: string;
    readonly author: string;
}

saeedhajinasiri

import { Controller, Get, Param, Post, Body, Query, Delete } from '@nestjs/common';
import { BooksService } from './books.service';
import { CreateBookDTO } from './dto/create-book.dto';

@Controller('books')
export class BooksController {
    constructor(private booksService: BooksService) { }

    @Get()
    async getBooks() {

saeedhajinasiri

import { Injectable, HttpException } from '@nestjs/common';
import { BOOKS } from '../mocks/books.mock';
@Injectable()
export class BooksService {
    books = BOOKS;
    ...
    deleteBook(bookID): Promise {
        let id = Number(bookID);
        return new Promise(resolve => {
            let index = this.books.findIndex(book => book.id === id);

saeedhajinasiri

import { Injectable, HttpException } from '@nestjs/common';
import { BOOKS } from '../mocks/books.mock';
@Injectable()
export class BooksService {
    books = BOOKS;
    ...
    addBook(book): Promise {
        return new Promise(resolve => {
            this.books.push(book);
            resolve(this.books);

saeedhajinasiri

import { Injectable, HttpException } from '@nestjs/common';
import { BOOKS } from '../mocks/books.mock';

@Injectable()
export class BooksService {
    books = BOOKS;

    getBooks(): Promise {
        return new Promise(resolve => {
            resolve(this.books);

saeedhajinasiri

export const BOOKS = [
    { id: 1, title: 'First book', description: "This is the description for the first book", author: 'Olususi Oluyemi' },
    { id: 2, title: 'Second book', description: "This is the description for the second book", author: 'John Barry' },
    { id: 3, title: 'Third book', description: "This is the description for the third book", author: 'Clement Wilfred' },
    { id: 4, title: 'Fourth book', description: "This is the description for the fourth book", author: 'Christian nwamba' },
    { id: 5, title: 'Fifth book', description: "This is the description for the fifth book", author: 'Chris anderson' },
    { id: 6, title: 'Sixth book', description: "This is the description for the sixth book", author: 'Olususi Oluyemi' },
];

saeedhajinasiri

import { Module } from '@nestjs/common';
@Module({})
export class BooksModule {}

saeedhajinasiri

...
@Controller('users')
export class UsersController {
constructor(private readonly usersService: UsersService){}
 ...
}

saeedhajinasiri

...
import { UsersModule } from './users/users.module';

@Module({
  ...
})

export class AppModule { }