本人使用的是nestjs框架,参数检验部分使用class-validator进行常见的验证,包括类型检验、值检验等。但当参数为嵌套对象时,如果使用常规的IsObject注解会无法检验到嵌套结构的内部。结构如下: classAddress{@IsString()addressName: string;@IsNumber()addressCode: number; }classUser{@IsString()userName: string;@IsOb...
首先我们安装两个需要的依赖包:class-transformer和class-validator。 代码语言:bash 复制 npminstallclass-validator class-transformer-S 然后在xxxx.dto.ts文件中添加验证, 完善错误信息提示: 代码语言:ts 复制 import{IsNotEmpty,IsNumber,IsString}from'class-validator';exportclassCreatePostDto{@ApiProperty({descri...
我可以使用class-validator来验证Entity列吗?这不会验证列: import { IsEmail } from 'class-validator'; export class Admin extends BaseEntity {@Column({ unique: true }) email: string; } 但是,当我在代码中实体以外的任何地方使用class-validator ...
This fails because regionId is a string when called. import{IsInt}from'class-validator';exportclassGetLeaderboardDto{@IsInt()publicreadonlyregionId:number;} Expected behavior Having a possibility to parse it as number inbetween, like this: ...
在使用class-validator进行参数校验的时候,会遇到[object,object]或[key:object]的情况!刚接触class-validator的小伙伴,遇到这种问题会比较头大(我刚遇到的这种情况也是很头大😂😂!)!废话不多少说,我们直接上代码: 1、数组中嵌套对象型-[object,object,...] ...
class-validator源码地址 通过自定义一个全局的validation pipe,结合class-validator来做参数校验。 nest官网对class-validator一笔带过。本篇整理一些常用的方法。 dto 需要自行了解dto 常用的 IsDefined 字符串类型的判断 IsNumberString 字符串"1",可以符合条件。数字1却不行。
import{ValidationTypes}from'class-validator'// ...constschemas=validationMetadatasToSchemas({additionalConverters:{[ValidationTypes.IS_STRING]:{description:'A string value',type:'string',},},}) which now outputs: {"BlogPost": {"properties": {"id": {"description":"A string value","type":"...
The StringValidator class is used to ensure that a string meets specific criteria. The criteria for validation is established when an instance of the StringValidator class is created. There are three constructor overloads for the StringValidator class. The StringValidator.StringValidator(Int32) ...
Max, } from 'class-validator'; export class Post { @Length(10, 20) title: string; @Contains('hello') text: string; @IsInt() @Min(0) @Max(10) rating: number; @IsEmail() email: string; @IsFQDN() site: string; @IsDate() createDate: Date; } let post = new Post(); post....
Otheriwse, the following logic is executed While the policy has not expired, the derived validator will keep doing it validation with a back off interval between every validation The policy will expire due to following reason 1.the policy reaches its max times of...