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question: ValidateNested with IsOptional throws a BadRequest

See original GitHub issue

Currently using -

class-transformer - 0.2.3
class-validator - 0.11.0
express - 4.15.4
node version - 13.9.0

I have 2 classes -

export class A {
    @IsNotEmpty()
    @Length(2, 32)
    public someField: string;

    @IsOptional()
    @IsEnum(EnumClass)
    public someEnum: EnumClass;
}

export class B {
    @ValidateNested({ each: true })
    @Type(() => A)
    public arrayOfAs: A[];
}

For some reason - I get a BadRequest when I don’t send the enum type although it’s decorated with “IsOptional”, am I doing something wrong or is that a bug? Couldn’t find any sample of code to validate a nested object array with isOptional decoraror.

Issue Analytics

State:
Created 3 years ago
Comments:7 (3 by maintainers)

Top GitHub Comments

1reaction

Jhonnyccommented, Apr 8, 2020

Hi @vlapo, Not really, but after a clean build + set and unset of defaultErrorHandler on routing-controller options I got data on the “errors” property of the error object, not sure why (as per the documentation of routing controllers defaultErrorHandler is set by default on dev environment, but explicitly setting it to true building and then back to false then a rebuild solved the problem) might have been a cache problem? 0_o

0reactions

lock[bot]commented, Apr 15, 2020

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

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