类验证程序不';在NestJS应用程序中似乎不做任何事情
我正在设置一个新的NestJS应用程序,我刚刚添加了类验证器以验证控制器输入,但它似乎被完全忽略了。这是DTO:类验证程序不';在NestJS应用程序中似乎不做任何事情,nestjs,class-validator,Nestjs,Class Validator,我正在设置一个新的NestJS应用程序,我刚刚添加了类验证器以验证控制器输入,但它似乎被完全忽略了。这是DTO: import {IsString} from 'class-validator'; export class CreateCompanyDto { @IsString() name: string | undefined; } 这是控制器: import { Body, Controller, InternalServerErrorExce
import {IsString} from 'class-validator';
export class CreateCompanyDto {
@IsString()
name: string | undefined;
}
这是控制器:
import {
Body,
Controller,
InternalServerErrorException,
Post,
Request,
UseGuards, ValidationPipe
} from '@nestjs/common';
import * as admin from 'firebase-admin';
import {User} from 'firebase';
import {AuthGuard} from '../auth/auth.guard';
import {CurrentUser} from '../auth/current-user.decorator';
import {CreateCompanyDto} from './dto/create-company.dto';
@Controller('vendor')
export class VendorController {
@Post()
@UseGuards(AuthGuard)
async create(@CurrentUser() user: User, @Request() req: any, @Body(new ValidationPipe({ transform: true })) company: CreateCompanyDto) {
console.log(JSON.stringify(company));
throw new InternalServerErrorException('meh?');
// irrelevant code
}
}
我希望代码抛出一个验证错误,并且永远不会命中该方法本身,但是它会运行到异常中,并且对象的日志记录与它进入时完全相同
package.json:
{
"name": "functions",
"scripts": {
"lint": "tslint --project tsconfig.json",
"prebuild": "(cd src && rm settings.json && ln -s ../configs/prod.json settings.json)",
"build": "tsc",
"prebuild:dev": "(cd src && rm settings.json && ln -s ../configs/dev.json settings.json)",
"build:dev": "tsc",
"serve": "concurrently \"npm run build:dev -- --watch\" \"firebase emulators:start --only functions\"",
"shell": "npm run build && firebase functions:shell",
"start": "npm run shell",
"deploy": "firebase deploy --only functions",
"logs": "firebase functions:log"
},
"engines": {
"node": "8"
},
"main": "lib/functions/src/index.js",
"dependencies": {
"@elastic/elasticsearch": "^7.6.0",
"@nestjs/common": "^6.11.11",
"@nestjs/core": "^6.11.11",
"@nestjs/platform-express": "^6.11.11",
"@types/airtable": "^0.5.7",
"@types/nodemailer": "^6.4.0",
"airtable": "^0.8.1",
"class-transformer": "^0.2.3",
"class-validator": "^0.11.0",
"cors": "^2.8.5",
"express": "^4.17.1",
"firebase": "^7.10.0",
"firebase-admin": "^8.9.2",
"firebase-functions": "^3.3.0",
"nodemailer": "^6.4.4",
"reflect-metadata": "^0.1.13",
"rxjs": "^6.5.4",
"slugify": "^1.4.0"
},
"devDependencies": {
"concurrently": "^5.1.0",
"tslint": "^6.0.0",
"typescript": "~3.7.5"
},
"private": true
}
我错过了什么
更新
我做了一点调试,我可以知道哪里出了问题,尽管我仍然不知道为什么
在ValidationPipe.transform方法中,它返回原始输入,因为元类型未定义:
async transform(value, metadata) {
const { metatype } = metadata;
if (!metatype || !this.toValidate(metadata)) {
return value;
}
// ...
}
好的,调试给了我足够的信息在Google上找到问题,我在Google上找到了Github问题:
您需要在
tsconfig.json
文件中启用“emitDecoratorMetadata”:true
,才能使其工作。在main.ts
中添加app.useGlobalPipes(新的ValidationPipe())代码>:
从'@nestjs/common'导入{ValidationPipe};
从'@nestjs/core'导入{NestFactory};
从“./app.module”导入{AppModule};
异步函数引导(){
const app=wait NestFactory.create(AppModule);
app.enableCors();
app.useGlobalPipes(新的ValidationPipe());
等待app.listen(process.env.PORT | | 3000);
}
bootstrap();