OrionPatch 0.2.0

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package OrionPatch --version 0.2.0
                    


                    

                
NuGet\Install-Package OrionPatch -Version 0.2.0
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="OrionPatch" Version="0.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="OrionPatch" Version="0.2.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="OrionPatch" />
                    


                            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 OrionPatch --version 0.2.0
                    


                    

                
#r "nuget: OrionPatch, 0.2.0"
#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 OrionPatch@0.2.0
#: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=OrionPatch&version=0.2.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=OrionPatch&version=0.2.0
                    


                            Install as a Cake Tool

OrionPatch

Transactional outbox primitive for .NET. Enqueue messages inside an EF Core SaveChanges transaction; a background dispatcher hands them to a pluggable IOutboxSink at-least-once.

This is the core package. It defines IOutbox, IOutboxSink, IOutboxStorage, the dispatcher hosted service, telemetry, and a built-in in-process ChannelOutboxSink. Use the companion OrionPatch.EntityFrameworkCore package for the EF Core storage backend, and OrionPatch.Testing for test helpers.

30-second quick start

services.AddOrionPatch(o => o.PollingInterval = TimeSpan.FromSeconds(1))
    .UseSink<MyKafkaSink>();   // or .UseChannelSink() for in-process

You'll also need a storage backend — see OrionPatch.EntityFrameworkCore.

Built-in ChannelOutboxSink

Useful for monoliths (in-process pub/sub) and tests. Zero external dependency.

services.AddOrionPatch().UseChannelSink(o => o.Capacity = 1000);

// Drain envelopes from anywhere in your app:
var sink = sp.GetRequiredService<ChannelOutboxSink>();
await foreach (var envelope in sink.Reader.ReadAllAsync(cancellationToken))
{
    // handle envelope.MessageType / envelope.Payload
}

Telemetry

ActivitySource and Meter named Moongazing.OrionPatch. Counters cover enqueued / dispatched / failed / dead-lettered / attempts; histogram measures per-envelope dispatch duration in milliseconds.

See the repo README for the full picture, comparison vs MassTransit / Wolverine, the at-least-once contract, and the roadmap.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on OrionPatch:

Package Downloads
OrionPatch.EntityFrameworkCore

EF Core storage backend for OrionPatch. Adds the OrionPatch_Outbox table; SaveChangesInterceptor flushes buffered messages into the user's transaction.
OrionPatch.Testing

Test helpers for OrionPatch. In-memory IOutboxStorage, deterministic dispatcher driver, CapturingOutboxSink, TestClock, and fluent OutboxAssertions. Zero EF Core dependency.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.2.0 21 6/3/2026
0.1.1 159 5/25/2026
0.1.0 114 5/24/2026