Stratara.Outbox.RabbitMQ 3.2.2

Prefix Reserved
.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There is a newer version of this package available.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 3.2.2
                    


                    

                
NuGet\Install-Package Stratara.Outbox.RabbitMQ -Version 3.2.2
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="3.2.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Stratara.Outbox.RabbitMQ" Version="3.2.2" />
                    


                            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 3.2.2
                    


                    

                
#r "nuget: Stratara.Outbox.RabbitMQ, 3.2.2"
#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@3.2.2
#: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=3.2.2
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Stratara.Outbox.RabbitMQ&version=3.2.2
                    


                            Install as a Cake Tool

Stratara.Outbox.RabbitMQ

License: MIT.

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

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
4.0.3 43 9/3/2026
4.0.2 221 9/3/2026
4.0.1 110 9/2/2026
4.0.0 151 8/31/2026
4.0.0-preview.1 61 8/31/2026
3.4.0 149 8/28/2026
3.3.0 117 8/25/2026
3.2.3 131 8/22/2026
3.2.2 137 8/14/2026
3.2.1 146 8/2/2026
3.2.0 139 7/18/2026
3.1.7 151 7/1/2026
3.1.6 569 6/22/2026
3.1.5 149 6/22/2026
3.1.4 152 6/15/2026
3.1.3 153 6/10/2026
3.1.2 170 6/5/2026
3.1.1 227 6/1/2026
3.1.0 151 5/30/2026
3.0.23 140 5/28/2026

API keys can now be bootstrapped. Issuance always generated the key itself, which does not fit the
setups where server and caller have to share a key *before* either starts — container orchestration,
CI provisioning, self-hosted bundles, end-to-end test hosts. This release adds an import path for a
key the caller already holds, plus the canonical key format as public API so callers generate values
instead of inventing them.

### Added

- **`IApiKeyStore.ImportAsync` — store a machine key whose raw value the caller already holds.**
 Issuance generates the key itself, which is the wrong shape when server and caller must share it
 *before* either boots: container orchestration, CI provisioning, self-hosted bundles, end-to-end
 test hosts. Without this path, consumers bypassed the store and reimplemented its internals (the
 digest format and the machine-key membership row) — a copy that keeps compiling after the store
 changes and fails as a runtime 401. Import is idempotent, so it can run unconditionally on every
 boot: a value that is already stored returns the existing descriptor and the stored key is never
 mutated, so a changed configuration cannot escalate a key's roles or extend its expiry unnoticed.
 Revoked, expired, and foreign-tenant values are rejected rather than silently adopted, and
 concurrent replicas racing the same first import converge on one key. Machine keys only —
 `ApiKeyImportRequest` carries no `UserId`.
- **`ApiKeyFormat` (`Stratara.Abstractions.ApiKeys`) — the canonical raw-key format as public API.**
 `CreateRawKey()` generates `stk_` plus the Base64Url encoding of 32 CSPRNG bytes; `IsWellFormed()`
 checks that shape. `ImportAsync` accepts only well-formed values: the store keeps its stored
 digest unsalted because a generated key carries 256 bits of entropy, and a hand-picked value would
 quietly invalidate that. Generate keys out of band with `CreateRawKey()` and keep them in a secret
 store — the type lives in the abstractions package so host-builder and orchestration projects can
 reach it without referencing the storage implementation.
- **`InMemoryApiKeyStore` (`Stratara.Testing`) — the drop-in double for the API-key store**,
 mirroring issuance, import, fail-closed validation, revocation, and the erasure sweeps, and
 materializing machine keys into a membership store you can share and inspect.

### Changed

- **API-key lifecycle events are now logged** (`Stratara.Diagnostics` event-ID range 116_000):
 import, idempotent repeat, and a repeat that supplied different parameters. Key ids and tenant
 ids only — never the raw key or its digest.
- **For implementers of `IApiKeyStore`:** the interface gained `ImportAsync`. Custom implementations
 need the new member; callers are unaffected.