Error: Action has more than one parameter bound from request body

Question

I wrote a new method into my Controller of my ASP.Net MVC project and getting error below. I think InvalidOperationException coming from with Swagger. I marked

Answer 1

Another possible solution is to nest the complex data types in a tuple:

[ApiExplorerSettings(IgnoreApi = true)]
public decimal CalculatePriceWithCampaign((BeverageCapacityCampaign campaign, BeverageCapacity capacity) data, int count = 1)
{
    switch (data.campaign.DiscountType)
    {
        case DiscountType.Fixed:
            return (data.capacity.CapacityPrice - data.campaign.DiscountValue) * count;
        case DiscountType.Percentage:
            return (data.capacity.CapacityPrice * count) * data.campaign.DiscountValue;
        default:
            return data.capacity.CapacityPrice;
    }
}

However, NSwag (Swagger) does not seems to be able to automatically parse this case because a non-valid example gets generated. NSwagStudio recognizes the case correctly and generates valid client code.