CarterCommunity · jchannon · Oct 10, 2025 · Oct 8, 2025 · Oct 9, 2025 · Oct 9, 2025
diff --git a/.github/workflows/dotnetcore.yml b/.github/workflows/dotnetcore.yml
@@ -25,28 +25,32 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v2
       with:
-        dotnet-version: 9.*
+        dotnet-version: 10.*
+        include-prerelease: true
+
     - name: Build Reason
       run: echo ${{github.ref}} and ${{github.event_name}}
+
     - name: Build with dotnet
       run: >-
         dotnet build
         --configuration Release
         --nologo
+
     - name: Run tests
       run: >-
         dotnet test
         --configuration Release
         --logger trx
         --no-build
         --nologo
-    - name: Publish test results
-      uses: dorny/test-reporter@v1
+
+    - name: Upload test results
+      uses: actions/upload-artifact@v4
       if: always()
       with:
-          name: .NET tests
-          path: '**/*.trx'
-          reporter: dotnet-trx
+        name: test-results
+        path: '**/*.trx'
 
     # PR merged or main tag created, create the CarterTemplate NuGet package
     - if: github.event_name == 'push' && !startsWith(github.ref, 'refs/tags/newtonsoft-')

diff --git a/.github/workflows/test-results.yml b/.github/workflows/test-results.yml
@@ -0,0 +1,26 @@
+name: Test Results
+
+on:
+  workflow_run:
+    workflows: [".NET Core"]
+    types:
+      - completed
+
+jobs:
+  test-results:
+    name: Publish Test Results
+    runs-on: ubuntu-latest
+    if: always()
+    permissions:
+      contents: read
+      actions: read
+      checks: write
+
+    steps:
+      - name: Publish test results
+        uses: dorny/test-reporter@v2
+        with:
+          name: .NET tests
+          artifact: test-results
+          path: 'test-results/**/*.trx'
+          reporter: dotnet-trx
diff --git a/Carter.sln b/Carter.sln
@@ -34,6 +34,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Carter.ResponseNegotiators.
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Carter.Analyzers", "src\Carter.Analyzers\Carter.Analyzers.csproj", "{C15C71C0-73CE-41DA-8EEE-C66318BF3A6C}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EntityFwk", "samples\EntityFwk\EntityFwk.csproj", "{E907925B-A874-40EA-A7A8-0A41E462A465}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -164,6 +166,18 @@ Global
 		{C15C71C0-73CE-41DA-8EEE-C66318BF3A6C}.Release|x64.Build.0 = Release|Any CPU
 		{C15C71C0-73CE-41DA-8EEE-C66318BF3A6C}.Release|x86.ActiveCfg = Release|Any CPU
 		{C15C71C0-73CE-41DA-8EEE-C66318BF3A6C}.Release|x86.Build.0 = Release|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Debug|x64.Build.0 = Debug|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Debug|x86.Build.0 = Debug|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Release|x64.ActiveCfg = Release|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Release|x64.Build.0 = Release|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Release|x86.ActiveCfg = Release|Any CPU
+		{E907925B-A874-40EA-A7A8-0A41E462A465}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -179,6 +193,7 @@ Global
 		{D30E87B0-39AE-41FE-8BA3-E5F9FBFFDD64} = {5D056A8A-821C-4C3C-A281-4FA7F8CE251B}
 		{47DD3AA8-F072-41E3-AF7F-119DBBD8D14A} = {DCB5B9A0-F06D-4BDF-917D-A459C790C718}
 		{C15C71C0-73CE-41DA-8EEE-C66318BF3A6C} = {5D056A8A-821C-4C3C-A281-4FA7F8CE251B}
+		{E907925B-A874-40EA-A7A8-0A41E462A465} = {35DE35A0-758D-4FDD-BDA3-67F04F65677D}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {9096DE78-6327-48BA-AE0E-336F769681A7}

diff --git a/README.md b/README.md
@@ -8,8 +8,10 @@ Other extensions include:
 
 * `Validate<T> / ValidateAsync<T>` - [FluentValidation](https://github.com/JeremySkinner/FluentValidation) extensions to validate incoming HTTP requests which is not available with ASP.NET Core Minimal APIs.
 * `BindFile/BindFiles/BindFileAndSave/BindFilesAndSave` - Allows you to easily get access to a file/files that has been uploaded. Alternatively you can call `BindFilesAndSave` and this will save it to a path you specify.
-* Routes to use in common ASP.NET Core middleware e.g., `app.UseExceptionHandler("/errorhandler");`.
+* `MapPost<T>/MapPut<T>` - Allows Carter to validate `T` and if it fails it returns a 422 Problem Details response.
+* `MapFormPost<T>` - Allows Carter to model bind `T` when submitting a form to the route.
 * `IResponseNegotiator`s allow you to define how the response should look on a certain Accept header(content negotiation). Handling JSON is built in the default response but implementing an interface allows the user to choose how they want to represent resources.
+* Routes to use in common ASP.NET Core middleware e.g., `app.UseExceptionHandler("/errorhandler");`.
 * All interface implementations for Carter components are registered into ASP.NET Core DI automatically. Implement the interface and off you go.
 
 ### Releases
@@ -118,6 +120,7 @@ public class HomeModule : ICarterModule
         });
         app.MapGet("/conneg", (HttpResponse res) => res.Negotiate(new { Name = "Dave" }));
         app.MapPost("/validation", HandlePost);
+        app.MapFormPost("/formpost", (Person model) => TypedResults.Ok(model)).DisableAntiforgery();
     }
 
     private IResult HandlePost(HttpContext ctx, Person person, IDatabase database)
@@ -156,7 +159,7 @@ public class Database : IDatabase
 
 ### Configuration
 
-As mentioned earlier Carter will scan for implementations in your app and register them for DI. However, if you want a more controlled app, Carter comes with a `CarterConfigurator` that allows you to register modules, validators and response negotiators manually.
+As mentioned earlier Carter will scan for implementations in your app and register them for DI. However, if you want a more controlled app, Carter comes with a `CarterConfigurator` that allows you to register modules, validators and response negotiators manually and configure validator lifetimes.
 
 Carter will use a response negotiator based on `System.Text.Json`, though it provides for custom implementations via the `IResponseNegotiator` interface. To use your own implementation of `IResponseNegotiator` (say, `CustomResponseNegotiator`), add the following line to the initial Carter configuration, in this case as part of `Program.cs`:
 
@@ -166,16 +169,11 @@ Carter will use a response negotiator based on `System.Text.Json`, though it pro
     {
         c.WithResponseNegotiator<CustomResponseNegotiator>();
         c.WithModule<MyModule>();
-        c.WithValidator<TestModelValidator>()
+        c.WithValidator<TestModelValidator>();
+        c.WithDefaultValidatorLifetime(ServiceLifetime.Singleton);
+        c.WithValidatorServiceLifetimeFactory(t => {if t is PersonValidator...})
     });
 
 ```
 
-Here again, Carter already ships with a response negotiator using `Newtonsoft.Json`, so you can wire up the Newtonsoft implementation with the following line:
-
-```csharp
-    builder.Services.AddCarter(configurator: c =>
-    {
-        c.WithResponseNegotiator<NewtonsoftJsonResponseNegotiator>();
-    });
-```
+If you wish to use `Newtonsoft.Json` Carter already ships a response negotiator in the package `Carter.ResponseNegotiators.Newtonsoft`. Once installed, it will automatically pick it up with no registration needed.
diff --git a/samples/CarterAndMVC/CarterAndMVC.csproj b/samples/CarterAndMVC/CarterAndMVC.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <AssemblyName>CarterAndMVC</AssemblyName>
     <OutputType>Exe</OutputType>
     <LangVersion>latest</LangVersion>

diff --git a/samples/CarterAndMVC/Program.cs b/samples/CarterAndMVC/Program.cs
@@ -1,19 +1,17 @@
-namespace CarterAndMVC
-{
-    using System.IO;
-    using Microsoft.AspNetCore.Hosting;
+using Carter;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.Extensions.DependencyInjection;
 
-    public class Program
-    {
-        public static void Main(string[] args)
-        {
-            var host = new WebHostBuilder()
-                .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseKestrel()
-                .UseStartup<Startup>()
-                .Build();
+var builder = WebApplication.CreateBuilder(args);
 
-            host.Run();
-        }
-    }
-}
+builder.Services.AddCarter();
+builder.Services.AddControllers();
+
+var app = builder.Build();
+
+app.MapCarter();
+app.MapControllerRoute(
+    name: "default",
+    pattern: "{controller=Home}/{action=Index}/{id?}");
+
+app.Run();
diff --git a/samples/CarterAndMVC/Startup.cs b/samples/CarterAndMVC/Startup.cs
diff --git a/samples/CarterSample/CarterSample.csproj b/samples/CarterSample/CarterSample.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
     <ImplicitUsings>enable</ImplicitUsings>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <ItemGroup>

diff --git a/samples/CarterSample/Features/Actors/ActorValidator.cs b/samples/CarterSample/Features/Actors/ActorValidator.cs
@@ -2,6 +2,7 @@ namespace CarterSample.Features.Actors;
 
 using FluentValidation;
 
+[ValidatorLifetimeAttribute(ServiceLifetime.Scoped)]
 public class ActorValidator : AbstractValidator<Actor>
 {
     public ActorValidator()

diff --git a/samples/EntityFwk/EntityFwk.csproj b/samples/EntityFwk/EntityFwk.csproj
@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+    <PropertyGroup>
+        <TargetFramework>net10.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <NoDefaultLaunchSettingsFile>True</NoDefaultLaunchSettingsFile>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\..\src\Carter\Carter.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.0-rc.1.25451.107" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.0-rc.1.25451.107">
+        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        <PrivateAssets>all</PrivateAssets>
+      </PackageReference>
+      <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="10.0.0-rc.1.25451.107" />
+    </ItemGroup>
+
+</Project>
diff --git a/samples/EntityFwk/Migrations/20251008114112_InitialCreate.Designer.cs b/samples/EntityFwk/Migrations/20251008114112_InitialCreate.Designer.cs