I can't get Validation error messages from nested object

[rrdlpl]

Bug Report

I am using the validation pipe and somehow I'm not able to get the validation error message when this validation fails.

Current behavior

I get the following response from my endpoint when I call it with an invalid payload.

{
    "statusCode": 400,
    "message": [],
    "error": "Bad Request"
}

Input Code

export class BookAppointmentDto {
  @IsDefined()
  @ApiProperty()
  @ValidateNested()
  @Type(() => ContactDetailsDto)
  public contactDetails: ContactDetailsDto;
  @IsDefined()
  @ApiProperty()
  public appointment: AppointmentSlotDto;
}

export class ContactDetailsDto implements ContactDetails {
  @IsString()
  @IsNotEmpty()
  @ApiProperty()
  public firstName: string;
  @IsString()
  @IsNotEmpty()
  @ApiProperty()
  public lastName: string;
  @IsString()
  @IsOptional()
  @ApiProperty()
  public name?: string;
  @IsEmail()
  @IsNotEmpty()
  @ApiProperty()
  public email: string;
  @IsString()
  @IsOptional()
  @ApiProperty()
  public phoneNumber?: string;
  @IsString()
  @IsOptional()
  @ApiProperty()
  public nationality?: string;
  @IsEnum(Visa)
  @IsOptional()
  @ApiProperty()
  public visa?: Visa;
  @IsString()
  @IsOptional()
  @ApiProperty()
  public birthday?: string;
  @IsEnum(OccupationStatus)
  @IsOptional()
  @ApiProperty()
  public employment?: OccupationStatus;
  @IsBoolean()
  @IsOptional()
  @ApiProperty()
  public englishSpeaker?: boolean;
  @IsString()
  @IsOptional()
  @ApiProperty()
  public interest?: Interest;
  @IsString()
  @IsOptional()
  @ApiProperty()
  public message?: string;
}

export class AppointmentSlotDto {
  @IsString()
  @IsNotEmpty()
  @ApiProperty()
  public start: string;
  @IsString()
  @IsNotEmpty()
  @ApiProperty()
  public end: string;
}

My Controller

@Post('/')
  public async bookAppointment(
    @Req() request: Request,
    @Body() payload: BookAppointmentDto
  ): Promise<any> {
     ...
}

Expected behavior

• I would like to get all validation error messages from the invalid payload.

Environment

Nest version: 7.0.5

For Tooling issues:

• Node version: v13.10.1
• Platform: macOS Catalina 10.15.3

[kamilmysliwiec]

We're tracking this here https://github.com/nestjs/nest/pull/4360

[lock[bot]]

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