Complete Example

Translation DTO

// project-translations.dto.ts
export class ProjectTranslationsDto {
  @ApiProperty({ type: 'string' })
  @IsString()
  id: string;

  @ApiProperty({ type: 'string' })
  @IsString()
  title: string;

  @ApiProperty({ type: 'string' })
  @IsString()
  locale: string;

  @ApiProperty({ type: 'string' })
  @IsString()
  overview: string | null;
}

Main DTO

// project.dto.ts
@LocalizableOptions({
  localizations: 'translations',
})
export class ProjectDto {
  @IsArray()
  @ApiProperty({ type: CreateProjectTranslationDTO, isArray: true })
  @Type(() => CreateProjectTranslationDTO)
  @ValidateNested({ each: true })
  translations!: CreateProjectTranslationDTO[];

  @IsString()
  @Localizable()
  title: string | null;

  @IsString()
  @Localizable()
  overview: string | null;
}

In this example both title and overview properties will be translated from the ProjectTranslationsDTO