I’m trying to send a dictionary that maps a string key to an object. When whitelist is set to false I can get the data no problem, but when it is set to true I keep getting an empty body in NestJs. Currently data validation is not my priority, just trying to send the data to the backend.

How should I go about defining my DTO so the data gets passed correctly even when whitelist is set to true?

So far I have tried these two DTO variations.

This is the base DTO:

export class CreateBlogDto {
  @IsString()
  @IsNotEmpty()
  @ApiProperty()
  title: string;

  @IsString()
  @IsNotEmpty()
  @ApiProperty()
  description: string;
}

And these are the DTOs that I’m having problems with:

1. try

@ApiExtraModels(CreateBlogDto)
export class CreateBlogTranslationsDto {
  @ApiProperty({
    type: 'object',
    additionalProperties: { $ref: getSchemaPath(CreateBlogDto) },
  })
  blogTranslations: { [languageCode: string]: CreateBlogDto };

}

2. try

@ApiExtraModels(CreateBlogDto)
export class CreateBlogTranslationsDto {
  @ApiProperty({
    type: 'object',
    additionalProperties: { $ref: getSchemaPath(CreateBlogDto) },
  })
  blogTranslations: Record<string, CreateBlogDto>;

}

This is how my endpoint looks like and in both the DTO variations it gets {} in the body:

 @Post(':blogId')
  async createBlogTranslations(
    @Param('blogId', ParseIntPipe) blogId: number,
    @Body() createBlogTranslationsDto: CreateBlogTranslationsDto,
  ) {
    console.log(JSON.stringify(putRouteDto, null, 2));
  }