인프런 커뮤니티 질문&답변

cats.controller.ts

import { CatsService } from './cats.service';
import {
  Controller,
  Delete,
  Get,
  HttpException,
  Param,
  ParseIntPipe,
  Patch,
  Post,
  Put,
  UseFilters,
} from '@nestjs/common';
import { HttpExceptionFilter } from 'src/common/exceptions/http-exception.filter';
import { PositiveIntPipe } from 'src/common/pipes/positiveInt.pipe';

@Controller('cats')
@UseFilters(HttpExceptionFilter)
export class CatsController {
  constructor(private readonly catsService: CatsService) {}

  @Get()
  getAllCat() {
    throw new HttpException('api is broken', 401);
    //throw new HttpException({ success: false, message: 'api is broken' }, 401);
    return 'get all cat api';
  }

  @Get(':id')
  getOneCat(@Param('id', ParseIntPipe, PositiveIntPipe) param: number) {
    //console.log('param!!!!!', param);
    //console.log('type of param!!!!!', typeof param);
    return 'get one cat api';
  }

  @Post()
  createCat() {
    return 'create cat api';
  }

  @Put(':id')
  updateCat() {
    return 'update cat api';
  }

  @Patch(':id')
  updatePartialCat() {
    return 'update partial cat api';
  }

  @Delete(':id')
  deleteCat() {
    return 'delets cat api';
  }
}

positiveInt.pipe.ts

import { Injectable, PipeTransform, HttpException } from '@nestjs/common';

@Injectable()
export class PositiveIntPipe implements PipeTransform {
  transform(value: number) {
    console.log('value', value);
    if (value < 0) {
      throw new HttpException('value > 0', 400);
    }
    return value;
  }
}

main.ts

import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import { HttpExceptionFilter } from './common/exceptions/http-exception.filter';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  app.useGlobalFilters(new HttpExceptionFilter());
  await app.listen(3000);
}
bootstrap();

이 상태에서 -2.2를 요청했는데 아래와 같이 나옵니다.

value가 positiveInt.pipe.ts 로 넘어가지 않는것 같은데

뭐가 잘못 됐을까요?