PBE-521 :: Fixed UTC convertion, added UTC serializer.

.github/CODEOWNERS

@@ -1 +1 @@
-* @ffenix113 @xernobyl @yaziine
+* @xernobyl @JimmyPettersson85 @itsmeadi

src/Utils/StreamJsonConverter.cs

@@ -13,6 +13,25 @@ public static class StreamJsonConverter
                 NamingStrategy = new SnakeCaseNamingStrategy(), // this handles ForeignId => foreign_id etc. conversion for us
             },
             NullValueHandling = NullValueHandling.Ignore,
+            DateTimeZoneHandling = DateTimeZoneHandling.Utc // always convert time to UTC
+        };
+
+        public static JsonSerializer Serializer { get; } = JsonSerializer.Create(Settings);
+        public static string SerializeObject(object obj) => JsonConvert.SerializeObject(obj, Settings);
+        public static T DeserializeObject<T>(string json) => JsonConvert.DeserializeObject<T>(json, Settings);
+    }
+
+    public static class StreamJsonConverterUTC
+    {
+        private static JsonSerializerSettings Settings = new JsonSerializerSettings
+        {
+            DateFormatString = "yyyy-MM-dd'T'HH:mm:ssZ",
+            ContractResolver = new DefaultContractResolver
+            {
+                NamingStrategy = new SnakeCaseNamingStrategy(), // this handles ForeignId => foreign_id etc. conversion for us
+            },
+            NullValueHandling = NullValueHandling.Ignore,
+            DateTimeZoneHandling = DateTimeZoneHandling.Utc  // always convert time to UTC
         };
 
         public static JsonSerializer Serializer { get; } = JsonSerializer.Create(Settings);

tests/UtilsTests.cs

@@ -51,5 +51,15 @@ public async Task TestActivityIdSameAsBackend()
 
             Assert.AreEqual(ActivityIdGenerator.GenerateId(activity.ForeignId, time).ToString(), activity.Id);
         }
+
+        [Test]
+        public async Task TestStreamJsonConverterUTC()
+        {
+            var date0 = new DateTime(2023, 5, 10, 12, 30, 15, DateTimeKind.Utc);
+            var date0AsJsonNewtonsoft = Newtonsoft.Json.JsonConvert.SerializeObject(date0);
+            var date0AsJson = Stream.Utils.StreamJsonConverterUTC.SerializeObject(date0);
+
+            Assert.AreEqual(date0AsJsonNewtonsoft, date0AsJson);
+        }
     }
 }