我正在尝试验证get请求查询中的参数,但是由于某些原因,验证管道无法识别查询的元素。
import {
Controller,
Post,
Query,
Body,
UseInterceptors,
Param,
Res,
Logger,
} from '@nestjs/common';
import { Crud, CrudController, Override } from '@nestjsx/crud';
import { OpenScheduleDto } from './open-schedule.dto';
@Crud(Schedule)
export class ScheduleController
implements CrudController<ScheduleService, Schedule> {
constructor(public service: ScheduleService) {}
get base(): CrudController<ScheduleService, Schedule> {
return this;
}
@Override()
async getMany(@Query() query: OpenScheduleDto) {
return query;
}
}
OpenSchedule.dto
import { IsNumber, IsOptional, IsString } from 'class-validator';
export class OpenScheduleDto {
@IsNumber()
companyId: number;
@IsNumber()
@IsOptional()
professionalId: number;
@IsString()
@IsOptional()
scheduleDate: string;
}
当我向http://localhost:3000/schedules?companyId=3&professionalId=1发送请求时
我收到意外错误:
{
"statusCode": 400,
"error": "Bad Request",
"message": [
{
"target": {
"companyId": "3",
"professionalId": "1"
},
"value": "3",
"property": "companyId",
"children": [],
"constraints": {
"isNumber": "companyId must be a number"
}
},
{
"target": {
"companyId": "3",
"professionalId": "1"
},
"value": "1",
"property": "professionalId",
"children": [],
"constraints": {
"isNumber": "professionalId must be a number"
}
}
]
}
答案 0 :(得分:1)
这是因为当您使用@Query
参数时,所有内容都是字符串。它没有数字或布尔值作为json之类的数据类型。因此,您必须先将值转换为数字。为此,您可以使用class-transformer
的{{1}}:
@Transform
不过请注意,由于例如import { IsNumber, IsOptional, IsString } from 'class-validator';
import { Transform } from 'class-transformer';
export class OpenScheduleDto {
@Transform(id => parseInt(id))
@IsNumber()
companyId: number;
@Transform(id => parseInt(id))
@IsNumber()
@IsOptional()
professionalId: number;
@IsString()
@IsOptional()
scheduleDate: string;
}
是parseInt('5abc010')
。因此,您可能需要对转换函数进行其他检查。