Json Serialization Issue

[SBarnes]

I have an issue where, from the following code when the API produces Json any property with a zero value such as Price does not appear on the object, if XML or csv are given then the price shows up regardless of its value.

How can I resolve this?

Ignore the Formatted function that is for something else

Code: Select all

 [Serializable]   
   [DataContract]
      public class DebtorOPEAFileExportResponse
      {
         [DataMember]
         public string CompanyID {get; set;}
         [DataMember]
         public DateTime EffectiveDate {get; set;}         
         [DataMember]
         public string PartNo {get; set;}
         [DataMember]
           public string Description {get; set;}
         [DataMember]
         public double Price {get; set;}
         [DataMember]
         public bool GST {get; set;}
         [DataMember]
         public double RRPrice {get; set;}
         [DataMember]
         public string DiscountCode {get; set;}         
         [DataMember]
         public string SupersededPartNo {get; set;}         
         [DataMember]
         public bool Active {get; set;}

         
         [DataMember]
         public string StockingCode {get; set;}   
         
         
         [DataMember]
         public double MOQ {get; set;}   
         
         [DataMember]
         public string Class {get; set;}   
         
         [DataMember]
         public string Filler {get; set;}   
         
         public DebtorOPEAFileExportResponse()
         {
         
            CompanyID  = "";
            
            EffectiveDate  = DateTime.Now;         
            
            PartNo  = "";
            
              Description  = "";
            
            Price  = 0;
            
            GST  = false;
            
            RRPrice  = 0;
            
            DiscountCode  = "";         
            
            SupersededPartNo  = "";         
            
            Active  = false;
            
               
            
            StockingCode  = "";   
            
            
            
            MOQ  = 0;   
            
            
            Class  = "";   
            
            
            Filler  = "";               
         }
         
         public string Formated()
         {
            string result = "";
            
            result += CompanyID.OPEAPadRight(4);
            result += EffectiveDate.ToString("yyMMdd").OPEAPadRight(6);
            result += PartNo.OPEAPadRight(20);
            result += Description.OPEAPadRight(35);
            result += (Price *100).OPEARoundedString(0).OPEAPadLeft(10, '0');
            result += (RRPrice *100).OPEARoundedString(0).OPEAPadLeft(10, '0');
            result += DiscountCode.OPEAPadRight(2);
            result += SupersededPartNo.OPEAPadRight(20);
            result += Active ? "A" : "N";
            result += GST ? "1" : "0";
            result += StockingCode.OPEAPadRight(1);
            result += MOQ.OPEARoundedString(0).OPEAPadRight(4);
            result += Class.OPEAPadRight(4);
            result += Filler.OPEAPadRight(8);
            
            
            return result;
         }         
         
      }
      
   public static class ExtHelper
   {
      
      public static string  OPEAPadLeft(this string str, int TotalWidth, char PadChar = ' ')
      {
         return str.PadLeft(TotalWidth, PadChar).Substring(0, TotalWidth);
      }
      
      public static string  OPEAPadRight(this string str, int TotalWidth, char PadChar = ' ')
      {
         string strPadded = str.PadRight(TotalWidth, PadChar);
         return strPadded.Substring(strPadded.Length - TotalWidth, TotalWidth);
      }
      
      public static string  OPEARoundedString(this double val, int decimals)
      {
         
         return Math.Round(val, decimals).ToString();
      }      
      
   }
            


[Mike.Sheen]

I have an issue where, from the following code when the API produces Json any property with a zero value such as Price does not appear on the object, if XML or csv are given then the price shows up regardless of its value.

How can I resolve this?

In our configure method of our RESTAPIPlugin class, we have the JsConfig.ExcludeDefaultValues property set to true:

Code: Select all

//When using the API, null or default values should be excluded
ServiceStack.Text.JsConfig.ExcludeDefaultValues = true;

I believe you want to set that to false.

If I recall correctly, we set this to true to simplify the json responses to only show values which are set (non-default) to make it easier to read. It shouldn't do any harm to turn it on, it'll just make the json responses more noisy.

[Mike.Sheen]

I found the original issue calling for this to be turned on - DEV-6164

[SBarnes]

Hi Mike

I don't know much about ServiceStack.Text does it support something like Newtonsoft does where you can inherit from JsonConverter, as I am a little cautious about resetting something on the overall api given we are talking about something with not only the standard api but also a large customisation extension to the api?

See

https://www.newtonsoft.com/json/help/ht ... verter.htm

[Mike.Sheen]

Hi Mike

I don't know much about ServiceStack.Text does it support something like Newtonsoft does where you can inherit from JsonConverter, as I am a little cautious about resetting something on the overall api given we are talking about something with not only the standard api but also a large customisation extension to the api?

See

https://www.newtonsoft.com/json/help/ht ... verter.htm

Hi Stuart,

You can customise the json responses - even per service, so your custom services can override the behaviour - see Customize JSON Responses.

Mike

[SBarnes]

Ok thanks,

I'll take a look.

I also found this which may be another way of overcoming it https://forums.servicestack.net/t/how-t ... ack/5152/2