Bugfixes/12952 fix newtonsoft using (#15515)

* Fix #12952: Handle useNewtonsoft parameter correctly Next commit will have all modified samples. * Fix #12952: Add generated samples * Fix #12952: Add missing files
OpenAPITools · May 16, 2023 · edad90e · edad90e
1 parent fbf42de
commit edad90e
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diff --git a/bin/configs/aspnetcore-6.0-NewtonsoftFalse.yaml b/bin/configs/aspnetcore-6.0-NewtonsoftFalse.yaml
@@ -0,0 +1,9 @@
+generatorName: aspnetcore
+outputDir: samples/server/petstore/aspnetcore-6.0-useNewtonsoft
+inputSpec: modules/openapi-generator/src/test/resources/3_0/aspnetcore/petstore.yaml
+templateDir: modules/openapi-generator/src/main/resources/aspnetcore/3.0
+additionalProperties:
+  packageGuid: '{3C799344-F285-4669-8FD5-7ED9B795D5C5}'
+  aspnetCoreVersion: "6.0"
+  userSecretsGuid: 'cb87e868-8646-48ef-9bb6-344b537d0d37'
+  useNewtonsoft: false
diff --git a/...i-generator/src/main/java/org/openapitools/codegen/languages/AspNetCoreServerCodegen.java b/...i-generator/src/main/java/org/openapitools/codegen/languages/AspNetCoreServerCodegen.java
@@ -410,7 +410,10 @@ public void processOpts() {
 
         if (useSeparateModelProject)
         {
-            supportingFiles.add(new SupportingFile("typeConverter.mustache", sourceFolder + File.separator + modelPackage + File.separator + "Converters", "CustomEnumConverter.cs"));
+            String separateModelSeparator = sourceFolder + File.separator + modelPackage ;
+            supportingFiles.add(new SupportingFile("gitignore", separateModelSeparator, ".gitignore"));
+            supportingFiles.add(new SupportingFile("typeConverter.mustache", separateModelSeparator + File.separator + "Converters", "CustomEnumConverter.cs"));
+            supportingFiles.add(new SupportingFile("ModelsProject.csproj.mustache", separateModelSeparator, modelPackage + ".csproj"));
         } else {
             supportingFiles.add(new SupportingFile("typeConverter.mustache", packageFolder + File.separator + "Converters", "CustomEnumConverter.cs"));
         }
@@ -419,11 +422,6 @@ public void processOpts() {
             supportingFiles.add(new SupportingFile("OpenApi" + File.separator + "TypeExtensions.mustache", packageFolder + File.separator + "OpenApi", "TypeExtensions.cs"));
         }
 
-        if (useSeparateModelProject)
-        {
-            supportingFiles.add(new SupportingFile("ModelsProject.csproj.mustache", sourceFolder + File.separator + modelPackage, modelPackage + ".csproj"));
-        }
-
         supportingFiles.add(new SupportingFile("Project.csproj.mustache", packageFolder, packageName + ".csproj"));
         if (!isLibrary) {
             supportingFiles.add(new SupportingFile("Dockerfile.mustache", packageFolder, "Dockerfile"));

diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/Startup.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/Startup.mustache
@@ -15,6 +15,10 @@ using Microsoft.OpenApi.Models;
 using Newtonsoft.Json.Converters;
 using Newtonsoft.Json.Serialization;
 {{/useNewtonsoft}}
+{{^useNewtonsoft}}
+using System.Text.Json;
+using System.Text.Json.Serialization;
+{{/useNewtonsoft}}
 using {{packageName}}.Authentication;
 {{#useSwashbuckle}}
 using {{packageName}}.Filters;
@@ -73,16 +77,24 @@ namespace {{packageName}}
                 // Don't need this for 3.x - see https://docs.microsoft.com/en-us/aspnet/core/mvc/compatibility-version?view=aspnetcore-3.1
                 //.SetCompatibilityVersion(CompatibilityVersion.{{.}})
                 {{/compatibilityVersion}}
-                .{{#useNewtonsoft}}AddNewtonsoftJson{{/useNewtonsoft}}{{^useNewtonsoft}}AddJsonOptions{{/useNewtonsoft}}(opts =>
+                {{#useNewtonsoft}}
+                .AddNewtonsoftJson(opts =>
                 {
                     opts.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
                     opts.SerializerSettings.Converters.Add(new StringEnumConverter
                     {
-                        {{#useNewtonsoft}}NamingStrategy = new CamelCaseNamingStrategy(){{/useNewtonsoft}}{{^useNewtonsoft}}CamelCaseText = true{{/useNewtonsoft}}
+                        NamingStrategy = new CamelCaseNamingStrategy()
                     });
                 });
+                {{/useNewtonsoft}}
+                {{^useNewtonsoft}}
+                .AddJsonOptions(options =>
+                {
+                    options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
+                    options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter(JsonNamingPolicy.CamelCase));
+                });
+                {{/useNewtonsoft}}
 {{#useSwashbuckle}}
-
             services
                 .AddSwaggerGen(c =>
                 {

diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/controller.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/controller.mustache
@@ -14,7 +14,12 @@ using Swashbuckle.AspNetCore.Annotations;
 using Swashbuckle.AspNetCore.SwaggerGen;
 {{/useSwashbuckle}}
 {{^isLibrary}}
+{{#useNewtonsoft}}
 using Newtonsoft.Json;
+{{/useNewtonsoft}}
+{{^useNewtonsoft}}
+using System.Text.Json;
+{{/useNewtonsoft}}
 {{/isLibrary}}
 using {{packageName}}.Attributes;
 using {{modelPackage}};

diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/enumClass.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/enumClass.mustache
@@ -5,8 +5,8 @@
         {{#description}}
         /// <value>{{{.}}}</value>
         {{/description}}
-        {{#allowableValues}}{{#enumVars}}{{#-first}}{{#isString}}[TypeConverter(typeof(CustomEnumConverter<{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}>))]
-        [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]{{/isString}}{{/-first}}{{/enumVars}}{{/allowableValues}}
+        {{#allowableValues}}{{#enumVars}}{{#-first}}{{#isString}}{{#useNewtonsoft}}[TypeConverter(typeof(CustomEnumConverter<{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}>))]
+        [JsonConverter(typeof(Newtonsoft.Json.Converters.StringEnumConverter))]{{/useNewtonsoft}}{{/isString}}{{/-first}}{{/enumVars}}{{/allowableValues}}
         public enum {{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}
         {
             {{#allowableValues}}{{#enumVars}}

diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/listReturn.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/listReturn.mustache
@@ -1,4 +1,4 @@
 
             var example = exampleJson != null
-            ? JsonConvert.DeserializeObject<{{returnContainer}}<{{{returnType}}}>>(exampleJson)
+            ? {{#useNewtonsoft}}JsonConvert.DeserializeObject{{/useNewtonsoft}}{{^useNewtonsoft}}JsonSerializer.Deserialize{{/useNewtonsoft}}<{{returnContainer}}<{{{returnType}}}>>(exampleJson)
             : Enumerable.Empty<{{{returnType}}}>();
diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/mapReturn.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/mapReturn.mustache
@@ -1,4 +1,4 @@
 
             var example = exampleJson != null
-            ? JsonConvert.DeserializeObject<{{{returnType}}}>(exampleJson)
+            ? {{#useNewtonsoft}}JsonConvert.DeserializeObject{{/useNewtonsoft}}{{^useNewtonsoft}}JsonSerializer.Deserialize{{/useNewtonsoft}}<{{{returnType}}}>(exampleJson)
             : new {{{returnType}}}();
diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/model.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/model.mustache
@@ -6,7 +6,12 @@ using System.Collections.Generic;
 using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 using System.Runtime.Serialization;
+{{#useNewtonsoft}}
 using Newtonsoft.Json;
+{{/useNewtonsoft}}
+{{^useNewtonsoft}}
+using System.Text.Json;
+{{/useNewtonsoft}}
 {{#models}}
 {{#model}}
 {{#discriminator}}
@@ -28,7 +33,7 @@ namespace {{modelPackage}}
     /// </summary>
     [DataContract]
     {{#discriminator}}
-    [JsonConverter(typeof(JsonSubtypes), "{{{discriminatorName}}}")]
+    {{#useNewtonsoft}}[JsonConverter(typeof(JsonSubtypes), "{{{discriminatorName}}}")]{{/useNewtonsoft}}
     {{#useSwashbuckle}}
     [SwaggerDiscriminator("{{{discriminatorName}}}")]
     {{/useSwashbuckle}}
@@ -99,7 +104,17 @@ namespace {{modelPackage}}
         /// <returns>JSON string presentation of the object</returns>
         public {{#parent}}{{^isMap}}{{^isArray}}new {{/isArray}}{{/isMap}}{{/parent}}string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            {{#useNewtonsoft}}
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            {{/useNewtonsoft}}
+            {{^useNewtonsoft}}
+            var options = new JsonSerializerOptions
+            {
+                WriteIndented = true
+            };
+
+            return JsonSerializer.Serialize(this, options);
+            {{/useNewtonsoft}}
         }
 
         /// <summary>

diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/objectReturn.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/objectReturn.mustache
@@ -1,4 +1,4 @@
 
             var example = exampleJson != null
-            ? JsonConvert.DeserializeObject<{{{returnType}}}>(exampleJson)
+            ? {{#useNewtonsoft}}JsonConvert.DeserializeObject{{/useNewtonsoft}}{{^useNewtonsoft}}JsonSerializer.Deserialize{{/useNewtonsoft}}<{{{returnType}}}>(exampleJson)
             : default({{{returnType}}});
diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/typeConverter.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/typeConverter.mustache
@@ -1,7 +1,12 @@
 using System;
 using System.ComponentModel;
 using System.Globalization;
+{{#useNewtonsoft}}
 using Newtonsoft.Json;
+{{/useNewtonsoft}}
+{{^useNewtonsoft}}
+using System.Text.Json;
+{{/useNewtonsoft}}
 
 namespace {{packageName}}.Converters
 {
@@ -36,7 +41,7 @@ namespace {{packageName}}.Converters
                 return null;
             }
 
-            return JsonConvert.DeserializeObject<T>(@"""" + value.ToString() + @"""");
+            return {{#useNewtonsoft}}JsonConvert.DeserializeObject{{/useNewtonsoft}}{{^useNewtonsoft}}JsonSerializer.Deserialize{{/useNewtonsoft}}<T>(@"""" + value.ToString() + @"""");
         }
     }
 }
diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Animal.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Animal.cs
@@ -67,7 +67,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/ApiResponse.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/ApiResponse.cs
@@ -65,7 +65,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Cat.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Cat.cs
@@ -51,7 +51,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public new string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/CatAllOf.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/CatAllOf.cs
@@ -51,7 +51,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Category.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Category.cs
@@ -59,7 +59,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Dog.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Dog.cs
@@ -51,7 +51,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public new string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/DogAllOf.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/DogAllOf.cs
@@ -51,7 +51,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Order.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Order.cs
@@ -116,7 +116,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Pet.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Pet.cs
@@ -119,7 +119,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Tag.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/Tag.cs
@@ -58,7 +58,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/User.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Models/User.cs
@@ -101,7 +101,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Startup.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Startup.cs
@@ -76,7 +76,6 @@ public void ConfigureServices(IServiceCollection services)
                         NamingStrategy = new CamelCaseNamingStrategy()
                     });
                 });
-
             services
                 .AddSwaggerGen(c =>
                 {

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Animal.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Animal.cs
@@ -67,7 +67,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/ApiResponse.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/ApiResponse.cs
@@ -65,7 +65,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Cat.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Cat.cs
@@ -51,7 +51,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public new string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/CatAllOf.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/CatAllOf.cs
@@ -51,7 +51,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Category.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Category.cs
@@ -59,7 +59,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Dog.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Dog.cs
@@ -51,7 +51,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public new string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/DogAllOf.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/DogAllOf.cs
@@ -51,7 +51,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Order.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Order.cs
@@ -116,7 +116,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Pet.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Pet.cs
@@ -119,7 +119,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Tag.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/Tag.cs
@@ -58,7 +58,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/User.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Models/User.cs
@@ -101,7 +101,7 @@ public override string ToString()
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+            return JsonConvert.SerializeObject(this, Formatting.Indented);
         }
 
         /// <summary>

diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Startup.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Startup.cs
@@ -76,7 +76,6 @@ public void ConfigureServices(IServiceCollection services)
                         NamingStrategy = new CamelCaseNamingStrategy()
                     });
                 });
-
             services
                 .AddSwaggerGen(c =>
                 {