I have a object it type is product:{[key:string]:[{min:number,max:number,discount:number}]}
that product if {} return error or min or max or discount not exist return error Or the type of one is not number return error in class-validator nestjs

simple data:

 "products": {
        "MciTopup": [ { "min": 4100 , "max": 1000, "discount": 2 } ],
        "AtiTickets": [ { "min": 40000, "max": 2000, "discount": 6 } ]
  }

my code but it don’t work

 export class ProductItemDto {
   @IsNumber()
   max!: number;
   @IsNumber()
   @Min(0)
   @Max(100)
   discount!: number;
   @IsNumber()
   min!: number; // Make min property optional
  }
  export class CreateCampaignDto {
  @ValidateNested({ each: true })
  @Type(() => ProductItemDto)
  products!: { [key: string]: ProductItemDto[] };

i tried to write this code but it do not work if you send empty {} it work or it error for keys that is string