如果不单独使用，nestjs/swagger 是否支持查询参数的文档？

Question

我定义了一个路由来在我的控制器中获取订单的分页结果。

@Get()
async find(
  @Query(new ValidationPipe({ whitelist: true }))
  query: OrderQueryDto & PaginatedQueryDto,
) {
  const builder = this.orderRepository
    .createQueryBuilder('order')
    .select('order.id')
    .take(query.take)
    .skip(query.skip)
    .andWhere('order.status != "deleted"');
   if (query.status) {
    builder.andWhere('order.status = :status');
  }
  const [items, count] = await builder.getManyAndCount();
   return { items, count };
}

但是我想要一些关于查询参数（类型OrderQueryDto & PaginatedQueryDto）的文档。我没有找到任何装饰器，它为 nest swagger-module 生成的 api 描述创建文档（和测试字段）。

我想我正在寻找类似的东西 @ApiImplicityQueryString({ type: OrderQueryDto & PaginatedQueryDto })。

我知道有一种方法可以像这样记录它：

@Get()
@ApiImplicitQuery({
  name: 'take',
  required: false,
  type: Number,
})
@ApiImplicitQuery({
  name: 'skip',
  required: false,
  type: Number,
})
// And all the other decorators for the remaining properties on OrderQueryDto [...]
async find(
  @Query(new ValidationPipe({ whitelist: true }))
  query: OrderQueryDto & PaginatedQueryDto,
) {
  const builder = this.orderRepository
    .createQueryBuilder('order')
    .select('order.id')
    .take(query.take)
    .skip(query.skip)
    .andWhere('order.status != "deleted"');
  if (query.status) {
    builder.andWhere('order.status = :status');
  }
  const [items, count] = await builder.getManyAndCount();
  return { items, count };
}

顺便说一句，DTO 看起来像这样

import { Transform } from 'class-transformer';
import { IsInt, IsOptional } from 'class-validator';

export class PaginatedQueryDto {
  @IsInt()
  @IsOptional()
  @Transform(value => value && parseInt(value, 10))
  take?: number;

  @IsInt()
  @IsOptional()
  @Transform(value => value && parseInt(value, 10))
  skip?: number;
}

import { IsInt, IsOptional, IsEnum } from 'class-validator';
import { Transform } from 'class-transformer';
import { OrderStatus } from './order.entity';

export class OrderQueryDto {
  @IsInt()
  @IsOptional()
  @Transform(value => value && parseInt(value, 10))
  reseller: number;

  @IsInt()
  @IsOptional()
  @Transform(value => value && parseInt(value, 10))
  customer: number;

  @IsEnum(OrderStatus)
  @IsOptional()
  status: OrderStatus;
}

Answer 1

如果你想在nest.js中使用查询参数DTO，你需要在控制器中将其定义为belove。

 @Get()
 @ApiQuery({ type: YourDTO})

Answer 2

添加@ApiTags('ports')到控制器。下面的代码

控制器

import { Body, Controller, Get, Param, Post, Query } from '@nestjs/common';
import { PaginationQuery } from './pagination-query.dto';
import {
    ApiBearerAuth,
    ApiConsumes,
    ApiExtension,
    ApiHeader,
    ApiOperation,
    ApiQuery,
    ApiResponse,
    ApiSecurity,
    ApiTags
  } from '@nestjs/swagger'

@ApiTags('ports')

@Controller('port')
export class PortController {
    @Get()
    findAll(@Query() paginationQuery: PaginationQuery) {}
}

分页查询

import { ApiProperty } from '@nestjs/swagger';

export enum LettersEnum {
  A = 'A',
  B = 'B',
  C = 'C'
}

export class PaginationQuery {
  @ApiProperty({
    minimum: 0,
    maximum: 10000,
    title: 'Page',
    exclusiveMaximum: true,
    exclusiveMinimum: true,
    format: 'int32',
    default: 0
  })
  page: number;

  @ApiProperty({
    name: '_sortBy'
  })
  sortBy: string[];

  @ApiProperty()
  limit: number;

  @ApiProperty({
    enum: LettersEnum,
    enumName: 'LettersEnum'
  })
  enum: LettersEnum;

  @ApiProperty({
    enum: LettersEnum,
    enumName: 'LettersEnum',
    isArray: true
  })
  enumArr: LettersEnum;

  @ApiProperty()
  beforeDate: Date;

  @ApiProperty({
    type: 'object',
    additionalProperties: true
  })
  filter: Record<string, any>;

  static _OPENAPI_METADATA_FACTORY() {
    return {
      sortBy: { type: () => [String] }
    };
  }
}