allow specifying payload serialization options

Author: alexalok

dotAPNS/ApnsClientCustomPayloadSerializationOptions.cs

@@ -0,0 +1,11 @@
+using Newtonsoft.Json;
+
+namespace dotAPNS;
+
+public static class ApnsClientCustomPayloadSerializationOptions
+{
+    public static JsonSerializerSettings Value { get; set; } = new()
+    {
+        NullValueHandling = NullValueHandling.Ignore
+    };
+}

dotAPNS/JsonContent.cs

@@ -8,7 +8,7 @@ public class JsonContent : StringContent
     {
         const string JsonMediaType = "application/json";
 
-        public JsonContent(object obj) : this(obj is string str ? str : JsonConvert.SerializeObject(obj, new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore }))
+        public JsonContent(object obj) : this(obj is string str ? str : JsonConvert.SerializeObject(obj, ApnsClientCustomPayloadSerializationOptions.Value ))
         {
 
         }

dotAPNS/dotAPNS.csproj

@@ -4,11 +4,10 @@
     <TargetFrameworks>net46;netstandard2.0;netstandard2.1</TargetFrameworks>
     <Authors>alexalok</Authors>
     <Description>dotAPNS is a library used to send push notifications to Apple devices using Apple Push Notification service.</Description>
-    <Version>4.5.0</Version>
-    <Copyright>© alexalok 2019-2024</Copyright>
+    <Version>4.6.0</Version>
+    <Copyright>© alexalok 2019-2025</Copyright>
     <PackageReleaseNotes>
-		* Minor perf improvements (#131)
-        * Allow getting APNs certificate information externally (#131)
+		* allow specifying payload serialization options
 	</PackageReleaseNotes>
     <PackageProjectUrl>https://github.com/alexalok/dotAPNS</PackageProjectUrl>
     <RepositoryUrl>https://github.com/alexalok/dotAPNS</RepositoryUrl>