swagger ApiProperty containing a key as an array of objects

Is there an existing issue for this?

[X] I have searched the existing issues

Current behavior

This is related to the following issues: 2945, 2418, 1112, 1113, 2418, 735, 90.

I have these 2 classes:

class FilterParamDto {
  @IsString()
  filterBy: string;

  @IsString()
  operator: string;

  @IsString()
  value: string;
}

export class SortAndFilterDto extends SortParamsDto {
  @ApiProperty({ type: FilterDto, isArray: true })
  readonly filters: FilterParamDto[];
}

I am getting this

I tried the following:

plugin in nest cli and added all the necessary decorators to filters and not use the @ApiProperty: doesn't work.
@ApiProperty({ type: [FilterDto]}) instead of @ApiProperty({ type: FilterDto, isArray: true }): doesn't work.
changed the type of FilterDto to get an array of strings: works

So I figured the problem is somewhere in reading array of objects only.

I read some workarounds using $ref and @ApiQuery over the controller directly, but it doesn't make sense to do workarounds that will disorganize the code when there might be a bug that needs fixing.