Stratara.Outbox.RabbitMQ 3.1.2

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package Stratara.Outbox.RabbitMQ --version 3.1.2
                    


                    

                
NuGet\Install-Package Stratara.Outbox.RabbitMQ -Version 3.1.2
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="Stratara.Outbox.RabbitMQ" Version="3.1.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Stratara.Outbox.RabbitMQ" Version="3.1.2" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Stratara.Outbox.RabbitMQ" />
                    


                            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 Stratara.Outbox.RabbitMQ --version 3.1.2
                    


                    

                
#r "nuget: Stratara.Outbox.RabbitMQ, 3.1.2"
#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 Stratara.Outbox.RabbitMQ@3.1.2
#: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=Stratara.Outbox.RabbitMQ&version=3.1.2
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Stratara.Outbox.RabbitMQ&version=3.1.2
                    


                            Install as a Cake Tool

Stratara.Outbox.RabbitMQ

License: FSL-1.1-MIT (Functional Source License — source-available; converts to MIT after 2 years). Not OSI-approved OSS.

Outbox-pattern command + event dispatch for the Stratara event-sourced stack with a RabbitMQ / Azure Service Bus message-bus implementation. Contains the write-side dispatchers, the outbox-retry worker, the read-side mediator command worker, the message-bus implementations, and the Redis-backed ProjectionReplayState that coordinates dispatch skip during projection replay.

What's in the box

Folder Contents
Outbox/ OutboxOptions, CommandOutboxDispatcher (write-side ICommand fan-out via IMessageBus, falls back to outbox table on bus failure), EventBundleOutboxDispatcher (same for EventBundle), OutboxWorker (hosted service that retries unpublished outbox rows on a polling interval), NullOutboxLock + RedisOutboxLock (IOutboxLock implementations — default no-op for single-instance deployments, Redis-leased distributed lock for multi-replica setups)
Messaging/ RabbitMqBus — IMessageBus over RabbitMQ. Azure Service Bus ships as the sibling Stratara.Outbox.AzureServiceBus package.
Mediator/ MediatorCommandWorker (hosted service that subscribes to the command topic and dispatches into the in-process IMediator)
Projections/ ProjectionReplayState (Redis-backed concrete IProjectionReplayState; dispatchers skip publishing while replay is active)
DependencyInjection/ AddOutboxDispatcher(), AddOutboxWorker(IConfiguration), AddRedisOutboxLock() (opt-in distributed lock), AddProjectionReplayState(), AddMediatorWorker(), AddMessaging()
Diagnostics/Extensions/ LoggerOutboxExtensions, LoggerMessagingExtensions (source-generated logger surfaces)

Quick start

// In your API host:
builder.AddMessaging();                          // IMessageBus + MessagingOptions binding
builder.Services
    .AddOutboxDispatcher()                       // CommandOutboxDispatcher + EventBundleOutboxDispatcher + ProjectionReplayState
    .AddOutboxWorker(builder.Configuration);     // OutboxWorker hosted service (only if this host owns retries)

// In your command worker:
builder.Services
    .AddMediatorWorker();                        // MediatorCommandWorker hosted service

The dispatchers consult IProjectionReplayState.IsReplayActive before each publish and skip dispatch (writing to the outbox table only) while a replay is in progress.

Multi-instance outbox workers

AddOutboxWorker registers NullOutboxLock as the default IOutboxLock — a no-op that preserves the single-instance assumption. For multi-replica deployments call AddRedisOutboxLock() afterwards; it replaces the no-op with a Redis-leased lock (SET stratara:outbox:lock NX EX) so only one replica drains at a time:

builder.AddCaching();                              // registers IConnectionMultiplexer
builder.Services
    .AddOutboxDispatcher()
    .AddOutboxWorker(builder.Configuration)
    .AddRedisOutboxLock();                         // multi-replica safe

The lease defaults to 60 s (OutboxOptions.LockLeaseSeconds). Tune it so it exceeds the worst-case drain duration; otherwise the lock can expire mid-cycle and a peer may start a concurrent drain. Outbox semantics are still at-least-once, so a duplicate publish is recoverable provided handlers stay idempotent.

Dependencies

  • Stratara.Abstractions — for ICommand, IEvent, IMessageBus, ICommandOutboxDispatcher, IEventBundleOutboxDispatcher, IProjectionReplayState, IMessagingIdentifier, IWriteUnitOfWork (used at runtime via the outbox repository).
  • Stratara.Contracts — for EventBundle + CommandEnvelope messages.
  • Stratara.Mediator — MediatorCommandWorker dispatches into the in-process IMediator.
  • Stratara.Sessions — dispatcher hydrates CommandEnvelope from the current session context.
  • Stratara.Shared — for messaging primitives, resilience pipeline names, mapping helpers, and the diagnostics base.
  • RabbitMQ.Client, StackExchange.Redis (replay-state + optional outbox-lock).
  • Microsoft.Extensions.Hosting.Abstractions + Microsoft.Extensions.Options.ConfigurationExtensions — for hosted services + options binding.

The outbox dispatcher persists rows through IWriteUnitOfWork.CreateOutboxRepository — that interface lives in Stratara.Abstractions, but the concrete implementation comes from Stratara.EventSourcing.EntityFrameworkCore. Reference that package alongside this one to get a working stack.

Product Compatible and additional computed target framework versions.
.NET 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 Stratara.Outbox.RabbitMQ:

Package Downloads
Stratara.Infrastructure

Infrastructure glue for the Stratara framework — authorization decorators, configuration providers, and DI composition helpers that wire Mediator, Outbox, Identity, and EF Core into a hosted app.
Stratara.EventSourcing.WorkerDefaults

Worker-host wiring composites for the Stratara event-sourced stack. IHostApplicationBuilder extensions (AddBackendServices, AddCommandWorkerServices, AddHeavyCommandWorkerServices, AddEventProjectionWorkerServices, AddEventStreamHashWorkerServices, AddSagaWorkerServices, AddOutboxWorkerServices) bundle the per-concern DI calls so each worker host opts in with one line.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
3.2.0 36 7/18/2026
3.1.7 132 7/1/2026
3.1.6 553 6/22/2026
3.1.5 132 6/22/2026
3.1.4 139 6/15/2026
3.1.3 138 6/10/2026
3.1.2 156 6/5/2026
3.1.1 215 6/1/2026
3.1.0 140 5/30/2026
3.0.23 129 5/28/2026

### Added

- **New package `Stratara.Testing`** — test doubles and assertion helpers so consumers can
 unit-test Stratara-based code without Postgres or RabbitMQ testcontainers. Reference it from
 test projects only.
 - `AggregateTestHarness<T>` + `Aggregate.Rehydrate<T>(...)` — given/when/then rehydration of an
   aggregate from events using the same reflection-based `Apply(...)` dispatch as the production
   aggregation service. It throws on an event with no matching `Apply` overload so a forgotten or
   mistyped overload fails the test; opt back into the production-lenient skip with
   `IgnoringUnmappedEvents()`.
 - `InMemoryKeyStore` — an `IKeyStore` that mints random 256-bit DEKs per `KeyScope` and supports
   rotation / revocation / scope-erasure without a master KEK or key file.
 - `TestBlobEncryptor.CreateAesGcm()` — the real AES-GCM `ISecureBlobEncryptor` over an
   `InMemoryKeyStore`, so blob round-trips exercise production encryption.
 - `InMemoryMessageBus` — an `IMessageBus` with synchronous in-process dispatch and a `Published`
   list for assertions.
 - `TestSessionContext` / `TestSessionContextProvider` — preset Actor/Subject `SessionContext`
   values and an `ISessionContextProvider` double.
 - `TestTenants.Of("acme")` — stable, deterministic tenant/user ids from readable slugs.
   `TestSessionContext` sets both correlation and causation ids so the context can drive
   event-store writes.
 - `TestEvent.Create(payload, ...)` — wrap an event payload in `IEvent<T>` with realistic
   metadata; `ProjectionTester.HandleAsync(projection, event)` — invoke a projection's private
   `HandleAsync` handler directly to unit-test it against mocked repositories.
- **New package `Stratara.Testing.EntityFrameworkCore`** — spins up the **real** event-sourcing
 write stack (`IEventSource`, `IAggregationService`, snapshots, the EF Core write store) against a
 shared in-memory SQLite database in one call, so tests exercise production code paths without
 Postgres or Docker. Reference it from test projects only.
 - `EventStoreTestHost.Create(...)` — owns the SQLite connection + service provider; exposes
   `ExecuteAsync(IEventSource)`, `AggregateAsync<T>(streamId)`, the preset `Session`, and the
   recording `Outbox`.
 - `AddStrataraTestingEventStore<TWriteDbContext>(connection, tenantId)` — the lower-level DI
   extension; `StrataraTestWriteDbContext` — a ready-made concrete write context;
   `RecordingEventBundleOutboxDispatcher` — captures emitted bundles for assertions.
 - The lockstep family grows from 22 to 24 packable packages.