NativeMediator.SourceGenerator.DependencyInjection 1.0.3

dotnet add package NativeMediator.SourceGenerator.DependencyInjection --version 1.0.3

NuGet\Install-Package NativeMediator.SourceGenerator.DependencyInjection -Version 1.0.3

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="NativeMediator.SourceGenerator.DependencyInjection" Version="1.0.3">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
</PackageReference>

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="NativeMediator.SourceGenerator.DependencyInjection" Version="1.0.3" />
                    

                            Directory.Packages.props

<PackageReference Include="NativeMediator.SourceGenerator.DependencyInjection">
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
</PackageReference>
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add NativeMediator.SourceGenerator.DependencyInjection --version 1.0.3

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: NativeMediator.SourceGenerator.DependencyInjection, 1.0.3"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package NativeMediator.SourceGenerator.DependencyInjection@1.0.3

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=NativeMediator.SourceGenerator.DependencyInjection&version=1.0.3
                    

                            Install as a Cake Addin

#tool nuget:?package=NativeMediator.SourceGenerator.DependencyInjection&version=1.0.3
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

NativeMediator.SourceGenerator.DependencyInjection

AOT-first Source Generator for MediatR Handler Registration - Automatically registers all IRequestHandler<,> implementations without assembly scanning.

Features

✅ 100% Native AOT Compatible - No reflection, no assembly scanning
✅ Compile-time Registration - All handlers discovered at build time
✅ Seamless MediatR Integration - Works with existing MediatR patterns
✅ IIncrementalGenerator - Fast, incremental builds

Installation

dotnet add package NativeMediator.SourceGenerator.DependencyInjection
dotnet add package MediatR

Usage

1. Create your handlers as usual

using MediatR;

public record GetUserQuery(int Id) : IRequest<User>;

public class GetUserHandler : IRequestHandler<GetUserQuery, User>
{
    public Task<User> Handle(GetUserQuery request, CancellationToken cancellationToken)
    {
        return Task.FromResult(new User { Id = request.Id, Name = "John Doe" });
    }
}

2. Register with generated method

using Microsoft.Extensions.DependencyInjection;
using NativeMediator.SourceGenerator.DependencyInjection.Generated;

var services = new ServiceCollection();
services.AddMediatR(cfg => cfg.RegisterServicesFromAssemblyContaining<Program>());

// Generated method - registers all IRequestHandler implementations
services.AddNativeMediatorHandlers();

Generated Code

The generator discovers all IRequestHandler<TRequest, TResponse> implementations and generates:

// Auto-generated
namespace NativeMediator.SourceGenerator.DependencyInjection.Generated
{
    public static class NativeMediatorServiceCollectionExtensions
    {
        public static IServiceCollection AddNativeMediatorHandlers(this IServiceCollection services)
        {
            // Scoped by default, matching MediatR conventions
            services.AddScoped<IRequestHandler<GetUserQuery, User>, GetUserHandler>();
            services.AddScoped<IRequestHandler<CreateOrderCommand, OrderResult>, CreateOrderHandler>();
            // ... all discovered handlers
            return services;
        }
    }
}

Handler Discovery

The generator automatically finds:

Classes implementing IRequestHandler<TRequest, TResponse>
Non-abstract, non-generic classes only
Both sync and async handlers

Diagnostics

Code	Description
`MED001`	Handler must be a non-abstract class
`MED002`	Handler must have a public constructor

Requirements

.NET 10 SDK
C# 13+
MediatR package (v12+)

Why Use This?

MediatR's default registration uses Assembly.GetTypes() which is incompatible with Native AOT. This generator eliminates that by discovering handlers at compile-time and generating explicit registrations.

License

MIT

There are no supported framework assets in this package.

Learn more about Target Frameworks and .NET Standard.

.NETStandard 2.0
- No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
1.0.3	71	2/11/2026
1.0.2	72	2/10/2026
1.0.1	74	2/10/2026
1.0.0	73	2/10/2026