Each parameter in the deserialization constructor on type 'Entities' must bind to an object property or field on deserialization

Question

I have this post method in my controller

[HttpPost]
public Task<AddClientAppSettingResponse> Post(AddClientAppSettingCommand mysetting)
    => Mediator.Send(mysetting);

My post method accept an AddClientAppSettingCommand model as you can see:

public class AddClientAppSettingCommand : IRequest<AddClientAppSettingResponse>
{
        public ClientAppSettings Setting { get; set; }

        public AddClientAppSettingCommand(ClientAppSettings setting)
        {
            Setting = setting;
        }
}

Here are my model classes:

public class ClientAppSettings : BaseEntity
{
        public ClientAppSettings(string userId) : base($"ClientAppSettings/{userId}")
        {
        }

        public bool LightTheme { get; set; }
        public OrderSettings Order { get; set; }
        public NotchSettings Notch { get; set; }
        public int PageSize { get; set; }
        public bool ApplyCommissionInPortfolio { get; set; }
        public bool UseClosingPriceInPortfolioTotalValue { get; set; }
        public bool ShowNotifications { get; set; } = true;
        public bool NoSleep { get; set; } = true;
        public bool NoBalance { get; set; } = false;
        public bool DataTracker { get; set; } = false;
        public bool UserStatusBarToUp { get; set; } = false;
        public bool PortfolioBasedOnLastPositivePeriod { get; set; } = false;
}

public class OrderSettings
{
        public long BuyQuantity { get; set; }
        public long SellQuantity { get; set; }
        public float Tick { get; set; }
        public string TickType { get; set; }
        public bool PriceFromHeadline { get; set; }
        public bool OrderConfirmation { get; set; }
        public bool DivideOrderToMultiple { get; set; }
}

public class NotchSettings
{
        public bool Up { get; set; }
        public bool Down { get; set; }
}

But when I call my API using postman with these values

{
   "setting":{
      "LightTheme":true,
      "Order":{
         "BuyQuantity":"1",
         "SellQuantity":"1",
         "Tick":"1.0",
         "TickType":"asas",
         "PriceFromHeadline":true,
         "OrderConfirmation":true,
         "DivideOrderToMultiple":true
      },
      "Notch":{
         "Up":true,
         "Down":true
      },
      "PageSize":"10",
      "ApplyCommissionInPortfolio":true,
      "UseClosingPriceInPortfolioTotalValue":true,
      "ShowNotifications":true,
      "NoSleep":true,
      "NoBalance":true,
      "DataTracker":true,
      "UserStatusBarToUp":true,
      "PortfolioBasedOnLastPositivePeriod":true
   }
}

I get this error

Each parameter in the deserialization constructor on type 'domain.Entities.ClientAppSettings' must bind to an object property or field on deserialization. Each parameter name must match with a property or field on the object. The match can be case-insensitive

As a note I use MediatR for CQRS ,I followed this but it didn't work .I put a [JsonConstructor] on

 public AddClientAppSettingCommand(ClientAppSettings setting)
        {
            Setting = setting;
        }

But it didn't work .and my variable setting is null

Answer 1

you need a parameterless constructor for api input parameter

public class AddClientAppSettingCommand : IRequest<AddClientAppSettingResponse>
{
        public ClientAppSettings Setting { get; set; }

        public AddClientAppSettingCommand() {}
       

        public AddClientAppSettingCommand(ClientAppSettings setting)
        {
            Setting = setting;
        }
}

and the same for settings

public class ClientAppSettings : BaseEntity
{
public ClientAppSettings(){}
      
}