[英]ValidationPipe() does not work on override @Query in Nestjs/Crud
我正在嘗試驗證 get 請求的查詢中出現的參數,但由於某種原因,驗證管道無法識別查詢的元素。
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;
}
當我向http://localhost:3000/schedules?companyId=3&professionalId=1發出 get 請求時
我收到意外錯誤:
{
"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"
}
}
]
}
那是因為當您使用@Query
參數時,一切都是字符串。 它沒有數字或布爾值作為像 json 這樣的數據類型。 因此,您必須首先將您的值轉換為數字。 為此,您可以使用class-transformer
的@Transform
:
import { IsNumber, IsOptional, IsString } from 'class-validator';
import { Transform } from 'class-transformer';
export class OpenScheduleDto {
@Transform(id => parseInt(id))
@IsNumber()
companyId: number;
@Transform(id => id ? parseInt(id) : id)
@IsNumber()
@IsOptional()
professionalId?: number;
@IsString()
@IsOptional()
scheduleDate?: string;
}
但請注意,這是不安全的,因為例如parseInt('5abc010')
是5
。 因此,您可能希望在轉換函數中進行額外檢查。
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