serialization improvements

Author: SharePointRadi

src/OneBitSoftware.Utilities.OperationResult/Errors/IOperationError.cs

@@ -4,7 +4,7 @@ public interface IOperationError
     {
         int? Code { get; set; }
 
-        string Message { get; set; }
+        string? Message { get; set; }
 
         string? Details { get; set; }
     }

src/OneBitSoftware.Utilities.OperationResult/Errors/OperationError.cs

@@ -4,7 +4,7 @@
 
     public class OperationError : IOperationError
     {
-        public OperationError(string message, int? code = null, string? details = null)
+        public OperationError(string? message = null, int? code = null, string? details = null)
         {
             this.Message = message;
             this.Code = code;
@@ -13,7 +13,7 @@ public OperationError(string message, int? code = null, string? details = null)
 
         public int? Code { get; set; }
 
-        public string Message { get; set; }
+        public string? Message { get; set; }
 
         public string? Details { get; set; }
 

src/OneBitSoftware.Utilities.OperationResult/OperationResult.cs

@@ -3,6 +3,7 @@
     using System;
     using System.Collections.Generic;
     using System.Linq;
+using System.Text.Json.Serialization;
     using Microsoft.Extensions.Logging;
     using OneBitSoftware.Utilities.Errors;
 
@@ -24,16 +25,18 @@ public class OperationResult
         /// <summary>
         /// Gets a value indicating whether the operation has failed.
         /// </summary>
+        [JsonIgnore]
         public bool Fail => this.Errors.Any();
 
         /// <summary>
         /// A collection of optional success messages that can be used to process positive operation result messages.
         /// </summary>
-        public IEnumerable<string> SuccessMessages
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+        public IEnumerable<string>? SuccessMessages
         {
             get
             {
-                return _successMessages;
+                return _successMessages.Any() ? _successMessages : null;
             }
         }
 
@@ -45,6 +48,7 @@ public IEnumerable<string> SuccessMessages
         /// <summary>
         /// Gets or sets the first exception that resulted from the operation.
         /// </summary>
+        [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
         public Exception? InitialException { get; private set; }
 
         /// <summary>