Found a workaround for the issue with class-transformer You can use this: @IsBoolean() @Transform(({ value} ) => value === ‘true’) public laserMode: boolean; This will transform the string into a boolean value, based on if it is ‘true’ or any other string. A simple workaround, but every string different than true, results in false.
Try specifying the nested type with @Type: import { Type } from ‘class-transformer’; export class CurrencyDTO { @ValidateNested({ each: true }) @Type(() => Data) data: Data[]; } For a nested type to be validated, it needs to be an instance of a class not just a plain data object. With the @Type decorator you tell … Read more
Finally I managed to solve the password matching problem thanks to the suggestion of @ChristopheGeers in the comments of my question: @piero: It’s not supported yet as mentioned. But here’s an example decorator (@IsLongerThan): LINK …. it checks if a property is longer than another one. So it’s possible to compare one property against another. … Read more
You can use the @IsOptional() validator: Checks if given value is empty (=== null, === undefined) and if so, ignores all the validators on the property.
for me, I would able to validate nested object with ‘class-transformer’ import { Type } from ‘class-transformer’; full example: import { MinLength, MaxLength, IsNotEmpty, ValidateNested, IsDefined, IsNotEmptyObject, IsObject, IsString, } from ‘class-validator’; import { Type } from ‘class-transformer’; class MultiLanguageDTO { @IsString() @IsNotEmpty() @MinLength(4) @MaxLength(40) en: string; @IsString() @IsNotEmpty() @MinLength(4) @MaxLength(40) ar: string; } export … Read more
Add @Type(() => AuthParam) to your array and it should be working. Type decorator is required for nested objects(arrays). Your code becomes import { IsArray, ValidateNested, ArrayMinSize, ArrayMaxSize } from ‘class-validator’; import { AuthParam } from ‘./authParam.model’; import { Type } from ‘class-transformer’; export class SignInModel { @IsArray() @ValidateNested({ each: true }) @ArrayMinSize(2) @ArrayMaxSize(2) @Type(() … Read more