From ff75cc26d0b5446ba3f03e15a9557f537e17f80e Mon Sep 17 00:00:00 2001
From: OMpawar-21 <om.pawar@contentstack.com>
Date: Tue, 7 Jul 2026 11:07:49 +0530
Subject: [PATCH] refactor: remove Newtonsoft.Json package and migrate template
 attributes to System.Text.Json

- Remove the Newtonsoft.Json 13.0.3 PackageReference from
  contentstack.model.generator.csproj now that tool internals no
  longer depend on it
- Update ModelGenerator.cs's _templateStart, CreateLinkClass(),
  CreateFile(), and AddParams() to emit [JsonPropertyName] instead
  of [JsonProperty], and swap the Newtonsoft using statements in
  _templateStart for System.Text.Json / Nodes / Serialization

Note: CreateEmbeddedObjectClass() and CreateModularBlockConverter()
still reference Newtonsoft types (JObject/JArray) for their converter
templates and are not yet migrated, so the project will not build
again until that work lands.
---
 contentstack.model.generator/ModelGenerator.cs | 18 +++++++++---------
 .../contentstack.model.generator.csproj        |  1 -
 2 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/contentstack.model.generator/ModelGenerator.cs b/contentstack.model.generator/ModelGenerator.cs
index 3550594..3fd5842 100644
--- a/contentstack.model.generator/ModelGenerator.cs
+++ b/contentstack.model.generator/ModelGenerator.cs
@@ -79,9 +79,9 @@ public class ModelGenerator
 using Contentstack.Core.Models;
 using Contentstack.Utils.Models;
 using Contentstack.Utils.Interfaces;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Converters;
-using Newtonsoft.Json.Linq;";
+using System.Text.Json;
+using System.Text.Json.Nodes;
+using System.Text.Json.Serialization;";
 
         private readonly List<Contenttype> _contentTypes = new List<Contenttype>();
         StackResponse stack;
@@ -550,9 +550,9 @@ private void CreateLinkClass(string NameSpace, DirectoryInfo directoryInfo)
 
                     // Creating Class
                     AddClass(contentstackLinkClass, sb);
-                    sb.AppendLine($"         [JsonProperty(propertyName: \"title\")]");
+                    sb.AppendLine($"         [JsonPropertyName(\"title\")]");
                     sb.AppendLine($"         public string{nullableString()} Title {{ get; set; }}");
-                    sb.AppendLine($"         [JsonProperty(propertyName: \"href\")]");
+                    sb.AppendLine($"         [JsonPropertyName(\"href\")]");
                     sb.AppendLine($"         public string{nullableString()} Href {{ get; set; }}");
 
                     // End of namespace and class
@@ -741,9 +741,9 @@ private void CreateFile(string contentTypeName, string nameSpace, Contenttype co
 
                     // Add Const
                     sb.AppendLine($"        public const string ContentType = \"{contentType.Uid}\";");
-                    sb.AppendLine($"        [JsonProperty(propertyName: \"uid\")]");
+                    sb.AppendLine($"        [JsonPropertyName(\"uid\")]");
                     sb.AppendLine($"        public string{nullableString()} Uid {{ get; set; }}");
-                    sb.AppendLine($"        [JsonProperty(propertyName: \"_content_type_uid\")]");
+                    sb.AppendLine($"        [JsonPropertyName(\"_content_type_uid\")]");
                     sb.AppendLine($"        public string{nullableString()} ContentTypeUid {{ get; set; }}");
 
                     //Adding Params to contentType
@@ -751,7 +751,7 @@ private void CreateFile(string contentTypeName, string nameSpace, Contenttype co
 
                     if (fields)
                     {
-                        sb.AppendLine($"        [JsonProperty(propertyName: \"_embedded_items\")]");
+                        sb.AppendLine($"        [JsonPropertyName(\"_embedded_items\")]");
                         sb.AppendLine("        public Dictionary<string, List<IEmbeddedObject>>{nullableString()} embeddedItems { get; set; }");
                     }
 
@@ -875,7 +875,7 @@ private void AddParams(string contentType, List<Field> schema, in StringBuilder
         {
             foreach (var field in schema)
             {
-                sb.AppendLine($"        [JsonProperty(propertyName: \"{field.Uid}\")]");
+                sb.AppendLine($"        [JsonPropertyName(\"{field.Uid}\")]");
                 if (field.DataType == "text" && field.FieldMetadata.IsMarkdown)
                 {
                     sb.AppendLine($"        public {GetDatatypeForField(field, contentType)} {FirstLetterToUpperCase(field.Uid)} {{");
diff --git a/contentstack.model.generator/contentstack.model.generator.csproj b/contentstack.model.generator/contentstack.model.generator.csproj
index fddbe7d..6ab2556 100644
--- a/contentstack.model.generator/contentstack.model.generator.csproj
+++ b/contentstack.model.generator/contentstack.model.generator.csproj
@@ -31,7 +31,6 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="McMaster.Extensions.CommandLineUtils" Version="4.0.2" />
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
   </ItemGroup>
   
   <ItemGroup>