Update JSON options examples (#26996)

aspnetcore/tutorials/min-web-api.md

@@ -927,17 +927,19 @@ Verify you can't post or get the secret field.
 - No support for [JsonPatch](https://www.nuget.org/packages/Microsoft.AspNetCore.JsonPatch/)
 - No support for [OData](https://www.nuget.org/packages/Microsoft.AspNetCore.OData/)
 - No support for [ApiVersioning](https://www.nuget.org/packages/Microsoft.AspNetCore.Mvc.Versioning/). See [this issue](https://github.com/dotnet/aspnet-api-versioning/issues/751) for more details.
-## Use JsonOptions
 
-The following code uses <xref:Microsoft.AspNetCore.Http.Json.JsonOptions>:
+## Configure JSON serialization options
 
-[!code-csharp[](min-web-api/samples/6.x/WebMinJson/Program.cs?name=snippet_1)]
+The following example invokes [`ConfigureHttpJsonOptions`](https://source.dot.net/#Microsoft.AspNetCore.Http.Extensions/HttpJsonServiceExtensions.cs,496f2a8225e6c731) to configure options that apply wherever the app serializes or deserializes JSON for HTTP requests and responses:
 
-The following code uses <xref:System.Text.Json.JsonSerializerOptions>:
+[!code-csharp[](min-web-api/samples/7.x/WebMinJson/Program.cs?name=snippet_1)]
 
-[!code-csharp[](min-web-api/samples/6.x/WebMinJson/Program.cs?name=snippet_2)]
+Options that you configure by invoking `ConfigureHttpJsonOptions` apply when the app calls extension methods defined in <xref:Microsoft.AspNetCore.Http.HttpResponseJsonExtensions> or <xref:Microsoft.AspNetCore.Http.HttpRequestJsonExtensions>.
+
+To make more localized changes to the serialization options, pass modified versions of <xref:System.Text.Json.JsonSerializerOptions> directly into the responses that are being sent from endpoints, as shown in the following example:
+
+[!code-csharp[](min-web-api/samples/7.x/WebMinJson/Program.cs?name=snippet_2)]
 
-The preceding code uses [web defaults](/dotnet/standard/serialization/system-text-json-configure-options#web-defaults-for-jsonserializeroptions), which converts property names to camel case.
 
 ## Test minimal API
 

aspnetcore/tutorials/min-web-api/samples/7.x/WebMinJson/Program.cs

@@ -0,0 +1,47 @@
+#define First
+#if First
+// <snippet_1>
+var builder = WebApplication.CreateBuilder(args);
+
+builder.Services.ConfigureHttpJsonOptions(options =>
+{
+    options.SerializerOptions.IncludeFields = true;
+});
+
+var app = builder.Build();
+
+app.MapGet("/", () => new Todo { Name = "Walk dog", IsComplete = false });
+
+app.Run();
+
+class Todo
+{
+    public string? Name;
+    public bool IsComplete;
+}
+// </snippet_1>
+#else
+// <snippet_2>
+using System.Text.Json;
+
+var builder = WebApplication.CreateBuilder(args);
+var app = builder.Build();
+
+var options = new JsonSerializerOptions
+{
+  PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+  WriteIndented = true
+}
+
+app.MapGet("/", () => Results.Json(new Todo {
+                      Name = "Walk dog", IsComplete = false }, options));
+
+app.Run();
+
+class Todo
+{
+    public string? Name { get; set; }
+    public bool IsComplete { get; set; }
+}
+// </snippet_2>
+#endif

aspnetcore/tutorials/min-web-api/samples/7.x/WebMinJson/WebMinJson.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

aspnetcore/tutorials/min-web-api/samples/7.x/WebMinJson/appsettings.Development.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  }
+}

aspnetcore/tutorials/min-web-api/samples/7.x/WebMinJson/appsettings.json

@@ -0,0 +1,10 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  },
+  "AllowedHosts": "*"
+}

aspnetcore/tutorials/min-web-api/samples/7.x/stub.txt

@@ -1 +0,0 @@
-Delete after adding 7.x version.