学习1

.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

.prettierrc

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+{
+  "singleQuote": true,
+  "trailingComma": "all",
+  "tabWidth": 4
+}

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>
+
+[circleci-image]: https://img.shields.io/circleci/build/github/nestjs/nest/master?token=abc123def456
+[circleci-url]: https://circleci.com/gh/nestjs/nest
+
+  <p align="center">A progressive <a href="http://nodejs.org" target="_blank">Node.js</a> framework for building efficient and scalable server-side applications.</p>
+    <p align="center">
+<a href="https://www.npmjs.com/~nestjscore" target="_blank"><img src="https://img.shields.io/npm/v/@nestjs/core.svg" alt="NPM Version" /></a>
+<a href="https://www.npmjs.com/~nestjscore" target="_blank"><img src="https://img.shields.io/npm/l/@nestjs/core.svg" alt="Package License" /></a>
+<a href="https://www.npmjs.com/~nestjscore" target="_blank"><img src="https://img.shields.io/npm/dm/@nestjs/common.svg" alt="NPM Downloads" /></a>
+<a href="https://circleci.com/gh/nestjs/nest" target="_blank"><img src="https://img.shields.io/circleci/build/github/nestjs/nest/master" alt="CircleCI" /></a>
+<a href="https://coveralls.io/github/nestjs/nest?branch=master" target="_blank"><img src="https://coveralls.io/repos/github/nestjs/nest/badge.svg?branch=master#9" alt="Coverage" /></a>
+<a href="https://discord.gg/G7Qnnhy" target="_blank"><img src="https://img.shields.io/badge/discord-online-brightgreen.svg" alt="Discord"/></a>
+<a href="https://opencollective.com/nest#backer" target="_blank"><img src="https://opencollective.com/nest/backers/badge.svg" alt="Backers on Open Collective" /></a>
+<a href="https://opencollective.com/nest#sponsor" target="_blank"><img src="https://opencollective.com/nest/sponsors/badge.svg" alt="Sponsors on Open Collective" /></a>
+  <a href="https://paypal.me/kamilmysliwiec" target="_blank"><img src="https://img.shields.io/badge/Donate-PayPal-ff3f59.svg"/></a>
+    <a href="https://opencollective.com/nest#sponsor"  target="_blank"><img src="https://img.shields.io/badge/Support%20us-Open%20Collective-41B883.svg" alt="Support us"></a>
+  <a href="https://twitter.com/nestframework" target="_blank"><img src="https://img.shields.io/twitter/follow/nestframework.svg?style=social&label=Follow"></a>
+</p>
+  <!--[![Backers on Open Collective](https://opencollective.com/nest/backers/badge.svg)](https://opencollective.com/nest#backer)
+  [![Sponsors on Open Collective](https://opencollective.com/nest/sponsors/badge.svg)](https://opencollective.com/nest#sponsor)-->
+
+## Description
+
+[Nest](https://github.com/nestjs/nest) framework TypeScript starter repository.
+
+## Installation
+
+```bash
+$ pnpm install
+```
+
+## Running the app
+
+```bash
+# development
+$ pnpm run start
+
+# watch mode
+$ pnpm run start:dev
+
+# production mode
+$ pnpm run start:prod
+```
+
+## Test
+
+```bash
+# unit tests
+$ pnpm run test
+
+# e2e tests
+$ pnpm run test:e2e
+
+# test coverage
+$ pnpm run test:cov
+```
+
+## Support
+
+Nest is an MIT-licensed open source project. It can grow thanks to the sponsors and support by the amazing backers. If you'd like to join them, please [read more here](https://docs.nestjs.com/support).
+
+## Stay in touch
+
+- Author - [Kamil Myśliwiec](https://kamilmysliwiec.com)
+- Website - [https://nestjs.com](https://nestjs.com/)
+- Twitter - [@nestframework](https://twitter.com/nestframework)
+
+## License
+
+Nest is [MIT licensed](LICENSE).

nest-cli.json

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

package.json

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+{
+  "name": "nest-learn",
+  "version": "0.0.1",
+  "description": "",
+  "author": "",
+  "private": true,
+  "license": "UNLICENSED",
+  "scripts": {
+    "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": {
+    "@fastify/multipart": "^7.4.2",
+    "@nestjs/common": "^9.0.0",
+    "@nestjs/core": "^9.0.0",
+    "@nestjs/mapped-types": "*",
+    "@nestjs/platform-fastify": "^9.3.9",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.0",
+    "nacos": "^2.5.1",
+    "reflect-metadata": "^0.1.13",
+    "rxjs": "^7.2.0"
+  },
+  "devDependencies": {
+    "@nestjs/cli": "^9.0.0",
+    "@nestjs/schematics": "^9.0.0",
+    "@nestjs/testing": "^9.0.0",
+    "@types/express": "^4.17.13",
+    "@types/jest": "29.2.4",
+    "@types/node": "18.11.18",
+    "@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": "29.3.1",
+    "prettier": "^2.3.2",
+    "source-map-support": "^0.5.20",
+    "supertest": "^6.1.3",
+    "ts-jest": "29.0.3",
+    "ts-loader": "^9.2.3",
+    "ts-node": "^10.0.0",
+    "tsconfig-paths": "4.1.1",
+    "typescript": "^4.7.4"
+  },
+  "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 {
+    Body,
+    Controller,
+    Get,
+    Param,
+    Post,
+    Query,
+    Req,
+    Session,
+} from '@nestjs/common';
+import { AppService } from './app.service';
+
+@Controller()
+export class AppController {
+    constructor(private readonly appService: AppService) {}
+
+    @Get()
+    getHello(
+        @Req() request: Request,
+        @Body() body: Body,
+        @Session() session: any,
+        @Param() param: any,
+        @Query() query: any,
+    ): string {
+        console.log('BODY', body);
+        console.log('SESSION', session);
+        console.log('PARAM', param);
+        console.log('QUERY', query);
+        return 'hello World';
+    }
+    @Post()
+    async readBody(@Body() body: Body, @Req() request: any): Promise<string> {
+        const files = await request.saveRequestFiles();
+        console.log('FILE', files);
+        console.log(
+            'FILE:filepath',
+            files[0].filepath,
+            files[0].fieldname,
+            files[0].filename,
+            files[0].encoding,
+            files[0].mimetype,
+            // files[0].fields,
+            files[0].file.bytesRead,
+        );
+        // console.log(body);
+        return 'hello World';
+    }
+}

src/app.module.ts

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+import { Module } from '@nestjs/common';
+import { AppController } from './app.controller';
+import { AppService } from './app.service';
+import { XiaomanModule } from './xiaoman/xiaoman.module';
+
+@Module({
+    imports: [XiaomanModule],
+    controllers: [AppController],
+    providers: [AppService],
+})
+export class AppModule {}

src/app.service.ts

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

src/main.ts

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+import { NestFactory } from '@nestjs/core';
+import { AppModule } from './app.module';
+import {
+    FastifyAdapter,
+    NestFastifyApplication,
+} from '@nestjs/platform-fastify';
+import fastifyM from '@fastify/multipart';
+
+import { NacosNamingClient } from 'nacos';
+import { ValidationPipe } from '@nestjs/common';
+
+//
+// async function bootstrap() {
+//   const app = await NestFactory.create(AppModule);
+//   await app.listen(3000);
+// }
+// bootstrap();
+
+async function bootstrap() {
+    const app = await NestFactory.create<NestFastifyApplication>(
+        AppModule,
+        new FastifyAdapter({
+            logger: true,
+        }),
+    );
+    app.useGlobalPipes(new ValidationPipe());
+    await app.register(fastifyM);
+    await app.listen(3000, '0.0.0.0');
+}
+
+async function microServer() {
+    const logger = console;
+    const client = new NacosNamingClient({
+        logger,
+        serverList: '192.168.1.200:8848', // replace to real nacos serverList
+        namespace: 'public',
+    });
+    await client.ready();
+    const serviceName = 'node-nestjs'; //服务名
+    await client.registerInstance(serviceName, {
+        ip: '192.168.1.128',
+        port: 3000,
+    });
+}
+
+// microServer();
+
+bootstrap();

src/xiaoman/dto/create-xiaoman.dto.ts

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+import { IsEmail, IsNotEmpty, IsPhoneNumber, IsString } from 'class-validator';
+
+// 此文件为验证演示
+// https://github.com/typestack/class-validator#usage
+// 这里有更多的验证方法
+export class CreateXiaomanDto {
+    @IsNotEmpty({
+        message: 'name 不能为空',
+    })
+    @IsString()
+    name: string;
+
+    @IsPhoneNumber('CN', {
+        message: 'phone 不是一个电话号码',
+    })
+    phone: string;
+
+    @IsEmail(
+        {},
+        {
+            message: 'email 不是一个合法邮箱',
+        },
+    )
+    email: string;
+}

src/xiaoman/dto/update-xiaoman.dto.ts

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+import { PartialType } from '@nestjs/mapped-types';
+import { CreateXiaomanDto } from './create-xiaoman.dto';
+
+export class UpdateXiaomanDto extends PartialType(CreateXiaomanDto) {}

src/xiaoman/entities/xiaoman.entity.ts

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+export class Xiaoman {}

src/xiaoman/xiaoman.controller.spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { XiaomanController } from './xiaoman.controller';
+import { XiaomanService } from './xiaoman.service';
+
+describe('XiaomanController', () => {
+  let controller: XiaomanController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [XiaomanController],
+      providers: [XiaomanService],
+    }).compile();
+
+    controller = module.get<XiaomanController>(XiaomanController);
+  });
+
+  it('should be defined', () => {
+    expect(controller).toBeDefined();
+  });
+});

src/xiaoman/xiaoman.controller.ts

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+import {
+    Controller,
+    Get,
+    Post,
+    Body,
+    Patch,
+    Param,
+    Delete,
+    ValidationPipe,
+    ParseIntPipe,
+    UseGuards,
+} from '@nestjs/common';
+import { XiaomanService } from './xiaoman.service';
+import { CreateXiaomanDto } from './dto/create-xiaoman.dto';
+import { UpdateXiaomanDto } from './dto/update-xiaoman.dto';
+import { XiaomanGuard } from './xiaoman.guard';
+
+@Controller('xiaoman')
+export class XiaomanController {
+    constructor(private readonly xiaomanService: XiaomanService) {}
+
+    @Post()
+    create(@Body(new ValidationPipe()) createXiaomanDto: CreateXiaomanDto) {
+        return this.xiaomanService.create(createXiaomanDto);
+    }
+
+    @Get()
+    @UseGuards(XiaomanGuard)
+    findAll() {
+        return this.xiaomanService.findAll();
+    }
+
+    @Get(':id')
+    findOne(@Param('id', ParseIntPipe) id: number) {
+        return this.xiaomanService.findOne(+id);
+    }
+
+    @Patch(':id')
+    update(
+        @Param('id') id: string,
+        @Body() updateXiaomanDto: UpdateXiaomanDto,
+    ) {
+        return this.xiaomanService.update(+id, updateXiaomanDto);
+    }
+
+    @Delete(':id')
+    remove(@Param('id') id: string) {
+        return this.xiaomanService.remove(+id);
+    }
+}

src/xiaoman/xiaoman.guard.spec.ts

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+import { XiaomanGuard } from './xiaoman.guard';
+
+describe('XiaomanGuard', () => {
+  it('should be defined', () => {
+    expect(new XiaomanGuard()).toBeDefined();
+  });
+});

src/xiaoman/xiaoman.guard.ts

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+import {
+    CanActivate,
+    ExecutionContext,
+    Injectable,
+    UnauthorizedException,
+} from '@nestjs/common';
+import { Observable } from 'rxjs';
+
+@Injectable()
+export class XiaomanGuard implements CanActivate {
+    canActivate(
+        context: ExecutionContext,
+    ): boolean | Promise<boolean> | Observable<boolean> {
+        console.log(context);
+        const request = context.switchToHttp().getRequest();
+        // console.log(request);
+        console.log(request.url);
+        console.log(request.headers);
+        // 自定义返回消息
+        throw new UnauthorizedException({
+            statusCode: 403,
+            message: '你没有访问权限',
+            error: 'Forbidden',
+        });
+        return false;
+    }
+}

src/xiaoman/xiaoman.module.ts

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+import { Module } from '@nestjs/common';
+import { XiaomanService } from './xiaoman.service';
+import { XiaomanController } from './xiaoman.controller';
+
+@Module({
+    controllers: [XiaomanController],
+    providers: [XiaomanService],
+})
+export class XiaomanModule {}

src/xiaoman/xiaoman.service.spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { XiaomanService } from './xiaoman.service';
+
+describe('XiaomanService', () => {
+  let service: XiaomanService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [XiaomanService],
+    }).compile();
+
+    service = module.get<XiaomanService>(XiaomanService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});

src/xiaoman/xiaoman.service.ts

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+import { Injectable } from '@nestjs/common';
+import { CreateXiaomanDto } from './dto/create-xiaoman.dto';
+import { UpdateXiaomanDto } from './dto/update-xiaoman.dto';
+
+@Injectable()
+export class XiaomanService {
+    create(createXiaomanDto: CreateXiaomanDto) {
+        return 'This action adds a new xiaoman';
+    }
+
+    findAll() {
+        return `This action returns all xiaoman`;
+    }
+
+    findOne(id: number) {
+        return `This action returns a #${id} xiaoman`;
+    }
+
+    update(id: number, updateXiaomanDto: UpdateXiaomanDto) {
+        return `This action updates a #${id} xiaoman`;
+    }
+
+    remove(id: number) {
+        return `This action removes a #${id} xiaoman`;
+    }
+}

test/app.e2e-spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { INestApplication } from '@nestjs/common';
+import * as request from 'supertest';
+import { AppModule } from './../src/app.module';
+
+describe('AppController (e2e)', () => {
+  let app: INestApplication;
+
+  beforeEach(async () => {
+    const moduleFixture: TestingModule = await Test.createTestingModule({
+      imports: [AppModule],
+    }).compile();
+
+    app = moduleFixture.createNestApplication();
+    await app.init();
+  });
+
+  it('/ (GET)', () => {
+    return request(app.getHttpServer())
+      .get('/')
+      .expect(200)
+      .expect('Hello World!');
+  });
+});

test/jest-e2e.json

@@ -0,0 +1,9 @@
+{
+  "moduleFileExtensions": ["js", "json", "ts"],
+  "rootDir": ".",
+  "testEnvironment": "node",
+  "testRegex": ".e2e-spec.ts$",
+  "transform": {
+    "^.+\\.(t|j)s$": "ts-jest"
+  }
+}

tsconfig.build.json

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+{
+  "extends": "./tsconfig.json",
+  "exclude": ["node_modules", "test", "dist", "**/*spec.ts"]
+}

tsconfig.json

@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "declaration": true,
+    "removeComments": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "allowSyntheticDefaultImports": true,
+    "target": "es2017",
+    "sourceMap": true,
+    "outDir": "./dist",
+    "baseUrl": "./",
+    "incremental": true,
+    "skipLibCheck": true,
+    "strictNullChecks": false,
+    "noImplicitAny": false,
+    "strictBindCallApply": false,
+    "forceConsistentCasingInFileNames": false,
+    "noFallthroughCasesInSwitch": false
+  }
+}