first commit

.env.template

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+ENVIRONMENT
+DATABASE_NAME
+DATABASE_PASSWORD
+DATABASE_HOST
+DATABASE_PORT
+DATABASE_USERNAME
+SYNC

.eslintrc.js

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+module.exports = {
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: 'tsconfig.json',
+    tsconfigRootDir : __dirname, 
+    sourceType: 'module',
+  },
+  plugins: ['@typescript-eslint/eslint-plugin'],
+  extends: [
+    'plugin:@typescript-eslint/recommended',
+    'plugin:prettier/recommended',
+  ],
+  root: true,
+  env: {
+    node: true,
+    jest: true,
+  },
+  ignorePatterns: ['.eslintrc.js'],
+  rules: {
+    '@typescript-eslint/interface-name-prefix': 'off',
+    '@typescript-eslint/explicit-function-return-type': 'off',
+    '@typescript-eslint/explicit-module-boundary-types': 'off',
+    '@typescript-eslint/no-explicit-any': 'off',
+  },
+};

.gitignore

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+# compiled output
+/dist
+/node_modules
+
+# Logs
+logs
+*.log
+npm-debug.log*
+pnpm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# OS
+.DS_Store
+
+# Tests
+/coverage
+/.nyc_output
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# environments
+.env
+.env.development

.prettierrc

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+{
+  "singleQuote": true,
+  "trailingComma": "all"
+}

README.md

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+<p align="center">
+  <a href="http://nestjs.com/" target="blank"><img src="https://nestjs.com/img/logo-small.svg" width="200" alt="Nest Logo" /></a>
+</p>
+
+## Description
+
+## Installation
+
+```bash
+$ yarn install
+```
+
+## Running the DB
+
+```bash
+# to set up the database
+docker-compose up -d
+```
+
+## Running the app
+
+```bash
+# development
+$ yarn start
+
+# watch mode
+$ yarn start:dev
+```

docker-compose.yml

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+version: '3'
+
+services:
+  db:
+    image: postgres:14.3
+    restart: always
+    env_file: ./.env
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_PASSWORD: ${DATABASE_PASSWORD}
+      POSTGRES_DB: ${DATABASE_NAME}
+    container_name: BSL

nest-cli.json

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+{
+  "$schema": "https://json.schemastore.org/nest-cli",
+  "collection": "@nestjs/schematics",
+  "sourceRoot": "src"
+}

package.json

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+{
+  "name": "beestore",
+  "version": "0.0.1",
+  "description": "",
+  "author": "",
+  "private": true,
+  "license": "UNLICENSED",
+  "scripts": {
+    "prebuild": "rimraf dist",
+    "build": "nest build",
+    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
+    "start": "nest start",
+    "start:dev": "nest start --watch",
+    "start:debug": "nest start --debug --watch",
+    "start:prod": "node dist/main",
+    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
+    "test": "jest",
+    "test:watch": "jest --watch",
+    "test:cov": "jest --coverage",
+    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
+    "test:e2e": "jest --config ./test/jest-e2e.json"
+  },
+  "dependencies": {
+    "@nestjs/common": "^9.0.0",
+    "@nestjs/config": "^2.2.0",
+    "@nestjs/core": "^9.0.0",
+    "@nestjs/mapped-types": "*",
+    "@nestjs/platform-express": "^9.0.0",
+    "@nestjs/typeorm": "^9.0.0",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.13.2",
+    "joi": "^17.6.0",
+    "pg": "^8.7.3",
+    "reflect-metadata": "^0.1.13",
+    "rimraf": "^3.0.2",
+    "rxjs": "^7.2.0",
+    "typeorm": "^0.3.7"
+  },
+  "devDependencies": {
+    "@nestjs/cli": "^9.0.0",
+    "@nestjs/schematics": "^9.0.0",
+    "@nestjs/testing": "^9.0.0",
+    "@types/express": "^4.17.13",
+    "@types/jest": "28.1.4",
+    "@types/node": "^16.0.0",
+    "@types/supertest": "^2.0.11",
+    "@typescript-eslint/eslint-plugin": "^5.0.0",
+    "@typescript-eslint/parser": "^5.0.0",
+    "eslint": "^8.0.1",
+    "eslint-config-prettier": "^8.3.0",
+    "eslint-plugin-prettier": "^4.0.0",
+    "jest": "28.1.2",
+    "prettier": "^2.3.2",
+    "source-map-support": "^0.5.20",
+    "supertest": "^6.1.3",
+    "ts-jest": "28.0.5",
+    "ts-loader": "^9.2.3",
+    "ts-node": "^10.0.0",
+    "tsconfig-paths": "4.0.0",
+    "typescript": "^4.3.5"
+  },
+  "jest": {
+    "moduleFileExtensions": [
+      "js",
+      "json",
+      "ts"
+    ],
+    "rootDir": "src",
+    "testRegex": ".*\\.spec\\.ts$",
+    "transform": {
+      "^.+\\.(t|j)s$": "ts-jest"
+    },
+    "collectCoverageFrom": [
+      "**/*.(t|j)s"
+    ],
+    "coverageDirectory": "../coverage",
+    "testEnvironment": "node"
+  }
+}

src/app.controller.spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { AppController } from './app.controller';
+import { AppService } from './app.service';
+
+describe('AppController', () => {
+  let appController: AppController;
+
+  beforeEach(async () => {
+    const app: TestingModule = await Test.createTestingModule({
+      controllers: [AppController],
+      providers: [AppService],
+    }).compile();
+
+    appController = app.get<AppController>(AppController);
+  });
+
+  describe('root', () => {
+    it('should return "Hello World!"', () => {
+      expect(appController.getHello()).toBe('Hello World!');
+    });
+  });
+});

src/app.controller.ts

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+import { Controller, Get } from '@nestjs/common';
+import { AppService } from './app.service';
+
+@Controller()
+export class AppController {
+  constructor(private readonly appService: AppService) {}
+
+  @Get()
+  getHello(): string {
+    return this.appService.getHello();
+  }
+}

src/app.module.ts

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+import * as Joi from 'joi';
+import { Module } from '@nestjs/common';
+import { ConfigModule, ConfigService } from '@nestjs/config';
+import { TypeOrmModule } from '@nestjs/typeorm';
+
+import { AppController } from './app.controller';
+import { AppService } from './app.service';
+import { ProductsModule } from './products/products.module';
+
+@Module({
+  imports: [
+    ConfigModule.forRoot({
+      isGlobal: true,
+      envFilePath: [
+        '.env',
+        '.env.development',
+        '.env.staging',
+        '.env.test',
+        '.env.production',
+      ],
+      validationSchema: Joi.object({
+        NODE_ENV: Joi.string()
+          .valid('development', 'production', 'test', 'staging')
+          .default('development'),
+        ENVIRONMENT: Joi.string(),
+        PORT: Joi.number().default(3000),
+      }),
+    }),
+    TypeOrmModule.forRootAsync({
+      imports: [ConfigModule],
+      inject: [ConfigService],
+      useFactory: async (configService: ConfigService) => ({
+        name: 'default',
+        type: 'postgres',
+        host: configService.get('DATABASE_HOST'),
+        port: configService.get<number>('DATABASE_PORT'),
+        database: configService.get('DATABASE_NAME'),
+        username: configService.get('DATABASE_USERNAME'),
+        password: configService.get('DATABASE_PASSWORD'),
+        autoLoadEntities: true,
+        synchronize: configService.get<boolean>('SYNC'),
+        logging: configService.get('ENVIRONMENT') !== 'production',
+      }),
+    }),
+    ProductsModule,
+  ],
+  controllers: [AppController],
+  providers: [AppService],
+})
+export class AppModule {}

src/app.service.ts

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+import { Injectable } from '@nestjs/common';
+
+@Injectable()
+export class AppService {
+  getHello(): string {
+    return 'Hello World!';
+  }
+}

src/config/env.config.ts

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+import { plainToClass } from 'class-transformer';
+import {
+  IsBoolean,
+  IsEnum,
+  IsNumber,
+  IsString,
+  validateSync,
+} from 'class-validator';
+
+import { Environment } from 'src/utils/enums/environments';
+
+class EnvironmentVariables {
+  @IsEnum(Environment)
+  NODE_ENV: Environment;
+
+  @IsString()
+  ENVIRONMENT: string;
+  @IsNumber()
+  DATABASE_PORT: number;
+  @IsString()
+  DATABASE_NAME: string;
+  @IsString()
+  DATABASE_USERNAME: string;
+  @IsString()
+  DATABASE_PASSWORD: string;
+  @IsBoolean()
+  SYNC: boolean;
+}
+
+export function validate(config: Record<string, unknown>) {
+  const validateConfig = plainToClass(EnvironmentVariables, config);
+  const errors = validateSync(validateConfig, { skipMissingProperties: false });
+
+  if (errors.length > 0) {
+    throw new Error(errors.toString());
+  }
+  return validateConfig;
+}

src/main.ts

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+import { ValidationPipe } from '@nestjs/common';
+import { NestFactory } from '@nestjs/core';
+import { AppModule } from './app.module';
+
+async function bootstrap() {
+  const app = await NestFactory.create(AppModule);
+
+  app.setGlobalPrefix('api');
+
+  app.useGlobalPipes(
+    new ValidationPipe({
+      whitelist: true,
+      forbidNonWhitelisted: true,
+    }),
+  );
+
+  await app.listen(3000);
+}
+bootstrap();