(bugfix): custom ObjectResult implementation should return camelCase json

src/MaksIT.Results.Tests/MaksIT.Results.Tests.csproj

@@ -14,6 +14,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.3.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">

src/MaksIT.Results.Tests/UnitTest1.cs

@@ -1,9 +1,10 @@
-using Xunit;
 using System.Net;
-using MaksIT.Results;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http;
 using MaksIT.Results.Mvc;
 
-namespace MaksIT.Results.Tests {
+
+namespace MaksIT.Results.Tests;
 public class ResultTests {
   [Fact]
   public void Result_Ok_ShouldReturnSuccess() {
@@ -133,5 +134,33 @@ namespace MaksIT.Results.Tests {
     Assert.Equal((int)HttpStatusCode.OK, objectResult.StatusCode);
     Assert.Equal(value, objectResult.Value);
   }
+
+  [Fact]
+  public async Task ObjectResult_ShouldSerializeToCamelCaseJson() {
+    // Arrange
+    var testObject = new TestPascalCase { FirstName = "John", LastName = "Doe" };
+    var objectResult = new ObjectResult(testObject);
+    var context = new DefaultHttpContext();
+    var memoryStream = new MemoryStream();
+    context.Response.Body = memoryStream;
+    var actionContext = new ActionContext {
+      HttpContext = context
+    };
+
+    // Act
+    await objectResult.ExecuteResultAsync(actionContext);
+
+    // Assert
+    memoryStream.Seek(0, SeekOrigin.Begin);
+    var json = await new StreamReader(memoryStream).ReadToEndAsync();
+    Assert.Contains("\"firstName\"", json);
+    Assert.Contains("\"lastName\"", json);
+    Assert.DoesNotContain("\"FirstName\"", json);
+    Assert.DoesNotContain("\"LastName\"", json);
+  }
+
+  private class TestPascalCase {
+    public string FirstName { get; set; }
+    public string LastName { get; set; }
   }
 }

src/MaksIT.Results/MaksIT.Results.csproj

@@ -8,7 +8,7 @@
 
     <!-- NuGet package metadata -->
     <PackageId>MaksIT.Results</PackageId>
-    <Version>1.0.9</Version>
+    <Version>1.1.0</Version>
     <Authors>Maksym Sadovnychyy</Authors>
     <Company>MAKS-IT</Company>
     <Product>MaksIT.Results</Product>

src/MaksIT.Results/Mvc/ObjectResult.cs

@@ -1,29 +1,34 @@
-using Microsoft.AspNetCore.Mvc;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Text.Json;
-using System.Threading.Tasks;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using Microsoft.AspNetCore.Mvc;
+
 
 namespace MaksIT.Results.Mvc;
 
-public class ObjectResult : IActionResult {
-  public object? Value { get; }
-  public int? StatusCode { get; set; }
+public class ObjectResult(object? value) : IActionResult {
+  private static readonly JsonSerializerOptions _jsonSerializerOptions = new() {
+    PropertyNamingPolicy = JsonNamingPolicy.CamelCase
+  };
 
-  public ObjectResult(object? value) {
-    Value = value;
-  }
+  public object? Value { get; } = value;
+  public int? StatusCode { get; set; }
 
   public async Task ExecuteResultAsync(ActionContext context) {
     var response = context.HttpContext.Response;
+
     if (StatusCode.HasValue) {
       response.StatusCode = StatusCode.Value;
     }
+
     response.ContentType = "application/json";
+
     if (Value is not null) {
-      await JsonSerializer.SerializeAsync(response.Body, Value);
+      await JsonSerializer.SerializeAsync(
+        response.Body,
+        Value,
+        Value?.GetType() ?? typeof(object),
+        _jsonSerializerOptions
+      );
     }
   }
 }