Add project

Common/Extensions/JsonExtensions.cs

@@ -0,0 +1,11 @@
+using System.Text.Json;
+
+namespace Common.Extensions
+{
+    public static class JsonExtensions
+    {
+        private static JsonSerializerOptions _jso = new() { PropertyNameCaseInsensitive = true, PropertyNamingPolicy = JsonNamingPolicy.CamelCase };
+        public static string ToJson<T>(this T source) => JsonSerializer.Serialize(source, _jso);
+        public static T FromJson<T>(this string source) => JsonSerializer.Deserialize<T>(source, _jso) ?? default!;
+    }
+}