nest.js-学习记录：9、使用Nest.js-typegoose依赖注入post

听得云里雾里，先把代码保存下来，详细的之后填上。

一、引入 npm i --save nestjs-typegoose
二、main.ts

import { NestFactory } from '@nestjs/core';
import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
import { AppModule } from './app.module';
import { ValidationPipe } from '@nestjs/common';
declare const module: any;

async function bootstrap() {

  const app = await NestFactory.create(AppModule); 
  
  // 验证管道
  app.useGlobalPipes(new ValidationPipe)

  const config = new DocumentBuilder()
    // 标题
    .setTitle('NestJs博客API') 
    // 描述
    .setDescription('我的第一个NestJs项目') 
    // 版本
    .setVersion('1.0')
    .build();
  // 引入Swagger
  const document = SwaggerModule.createDocument(app, config);
  // 接口文档路径
  SwaggerModule.setup('api-docs', app, document); 
  // 监听端口号3000
  await app.listen(3000); 
   
  if (module.hot) {
    module.hot.accept();
    module.hot.dispose(() => app.close());
  }
}

bootstrap();

三、app.module.ts

import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { PostsModule } from './posts/posts.module';
import { TypegooseModule } from 'nestjs-typegoose' 
@Module({
  imports: [
    TypegooseModule.forRoot('mongodb://localhost:27017/nest-blog-api'),
    PostsModule
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

四、posts.module.ts

import { Module } from '@nestjs/common';
import { TypegooseModule } from 'nestjs-typegoose';
import { PostsController } from './posts.controller';
import { postModel } from './posts.model';

@Module({
  controllers: [PostsController],
  imports :[
    TypegooseModule.forFeature([postModel])
  ]
})
export class PostsModule {}

五、posts.model.ts

import { prop } from "@typegoose/typegoose"

export class postModel{
    @prop()
    title:string
    @prop()
    content:string
}

六、posts.controller.ts

import { Body, Controller, Delete, Get, Param, Post, Put, Query } from '@nestjs/common';
import { ApiOperation, ApiProperty, ApiTags } from '@nestjs/swagger';
import { postModel} from './posts.model';
// 引入验证
import { IsNotEmpty } from "class-validator"
import { InjectModel } from 'nestjs-typegoose';
import { ModelType } from '@typegoose/typegoose/lib/types';
// 标识创建帖子的参数详情
class createPostDto{
    @ApiProperty({description:'帖子标题'})
    // 验证
    @IsNotEmpty({message:'请填写标题'})
    title:string
    @ApiProperty({description:'帖子内容'})
    content:string
}

@Controller('posts')
@ApiTags('帖子')
export class PostsController {
  constructor(@InjectModel(postModel) private readonly postModel :ModelType<postModel>){}
  @Get()
  @ApiOperation({summary:'显示帖子列表'})
 async index() {
    return await this.postModel.find()
  }

  @Post()
  @ApiOperation({summary:"创建帖子"})
  // 获取post请求的数据用@Body()装饰器获取数据，get用@query()
 async create(@Body() Body:createPostDto){
    await  this.postModel.create(Body)
    return{
      success:true
    }
  }

  @Get(':id')
  @ApiOperation({summary:"帖子详情"})
  async detail(@Param('id') id:string){
    return await  this.postModel.findById(id)
  }

  @Put(':id')
  @ApiOperation({summary:'编辑帖子详情'})
  async update(@Param('id') id:string,@Body() body:createPostDto){
    await  this.postModel.findByIdAndUpdate(id,body)
    return {
      success:true
    }
  }
  @Delete(':id')
  @ApiOperation({summary:'删除帖子'})
  async remove(@Param('id') id:string){
    await  this.postModel.findByIdAndDelete(id)
    return{
      success:true
    }

  }
}