Catch json deserialisation errors

SuccessfulCodeTools/Extensions/ObjectExtensions.cs

@@ -7,9 +7,9 @@ namespace SuccessfulCodeTools.Extensions
 {
     public static class ObjectExtensions
     {
-        public static Lazy<JsonSerializerSettings> _settings = new Lazy<JsonSerializerSettings>(GetSettings);
+        public static Lazy<JsonSerializerSettings> _settings = new Lazy<JsonSerializerSettings>(JsonSettings);
 
-        private static JsonSerializerSettings GetSettings()
+        private static JsonSerializerSettings JsonSettings()
         {
             var settings = new JsonSerializerSettings()
             {

SuccessfulCodeTools/Extensions/StringExtensions.cs

@@ -8,7 +8,16 @@ namespace SuccessfulCodeTools
     {
         public static T DeserializeJson<T>(this string value)
         {
-            return JsonConvert.DeserializeObject<T>(value);
+            try
+            {
+                return JsonConvert.DeserializeObject<T>(value);
+            }
+            catch (Exception ex)
+            {
+                ex = new ArgumentException("Not valid json", nameof(value), ex);
+                ex.Data.Add("argument value", value);
+                throw ex;
+            }
         }
 
         public static T ToEnum<T>(this string value)