Stratara.EventSourcing.Pipeline.CommandAudit 4.0.2

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dotnet add package Stratara.EventSourcing.Pipeline.CommandAudit --version 4.0.2
                    
NuGet\Install-Package Stratara.EventSourcing.Pipeline.CommandAudit -Version 4.0.2
                    
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.EventSourcing.Pipeline.CommandAudit" Version="4.0.2" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Stratara.EventSourcing.Pipeline.CommandAudit" Version="4.0.2" />
                    
Directory.Packages.props
<PackageReference Include="Stratara.EventSourcing.Pipeline.CommandAudit" />
                    
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.EventSourcing.Pipeline.CommandAudit --version 4.0.2
                    
#r "nuget: Stratara.EventSourcing.Pipeline.CommandAudit, 4.0.2"
                    
#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.EventSourcing.Pipeline.CommandAudit@4.0.2
                    
#: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.EventSourcing.Pipeline.CommandAudit&version=4.0.2
                    
Install as a Cake Addin
#tool nuget:?package=Stratara.EventSourcing.Pipeline.CommandAudit&version=4.0.2
                    
Install as a Cake Tool

Stratara.EventSourcing.Pipeline.CommandAudit

Derived. The behaviour described here is specified under openspec/specs/. Those specifications are the source; this page explains and illustrates them.

License: MIT.

Mediator pipeline behavior that records an audit row for every dispatched command in the Stratara event-sourced stack. Both arities are provided so consumers can register a single behavior pair and have it apply to all command shapes.

What's in the box

Type Purpose
AddCommandAuditing() The package's public surface — registers both behavior arities in one call.
CommandAuditBehavior<TRequest> (internal) Runs the audit-write step before delegating to next() for IRequest (commands without result).
CommandAuditBehavior<TRequest, TResult> (internal) Same, for IRequest<TResult> (commands with result + queries). Only records when the request also implements ICommandBase — queries flow through untouched.
CommandAuditWriter (internal) Opens a transaction on IWriteUnitOfWork, writes via ICommandAuditRepository.AddAsync, commits.

The behavior only audits commands — query requests reach the same generic interface but are filtered by the is ICommandBase check, so registering both behaviors application-wide is safe.

Quick start

// At composition time, alongside the other framework pipeline behaviors:
builder.Services.AddCommandAuditing();

That one call registers both behavior arities. The behavior types themselves are internal — they are an implementation detail, not something to name from your composition root.

The behaviors resolve IWriteUnitOfWork from DI (ships with Stratara.EventSourcing.EntityFrameworkCore in the default deployment). No additional registration is needed.

Dependencies

  • Stratara.Abstractions — for IPipelineBehavior<,>, IRequest/IRequest<T>, ICommandBase, IWriteUnitOfWork, ICommandAuditRepository.
  • JetBrains.Annotations[UsedImplicitly] on the public behavior classes (DI-instantiated, no static call site).

At runtime an IWriteUnitOfWork implementation must be registered — typically by referencing Stratara.EventSourcing.EntityFrameworkCore and calling AddWriteStore(IConfiguration).

Security note — command payload contents

The audit row stores CommandTypeName and the serialized CommandJson of the dispatched command. Whatever fields your commands carry land in the audit table. Sensitive data (passwords, tokens, API keys, encryption material) MUST NOT live on a command record — or must be marked with [EncryptData] so the registered ISecureJsonSerializer encrypts them before persistence.

The default Stratara registration uses ISecureJsonSerializer (AES-GCM + tenant-scoped AAD) for the audit serialization, so [EncryptData]-annotated properties are protected. Plain-text properties go to disk unencrypted — treat the audit table accordingly when designing command shapes.

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.

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Version Downloads Last Updated
4.3.0 0 9/23/2026
4.2.0 76 9/18/2026
4.1.1 64 9/16/2026
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4.0.1 225 9/2/2026
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3.2.2 116 8/14/2026
3.2.1 112 8/2/2026
3.2.0 129 7/18/2026
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Two operational fixes, both found while a consumer rolled out bus-envelope signing and reasoned
about rebuilding its read models: a projection replay now survives a passing failure, and an
integrity failure says whether the signature was absent or wrong. Additive on every published
surface.

### Added

- **A projection replay retries a failing batch before it gives up.** Each batch — the read from
 the event store and the application of its entries — now runs under a new named policy,
 `ResilienceNames.ProjectionReplayBatch`: five attempts in all, exponential backoff from one second
 with jitter between them, any exception except cancellation. A read-store timeout or a
 dropped connection mid-rebuild no longer ends the replay; a failure that persists through every
 attempt ends it exactly as before, with the same failure record. A retried batch is applied
 again from its first entry in a fresh scope, which relies on the guarantee projections already
 give under at-least-once delivery: a second application converges (see *Write handlers that
 converge rather than accumulate* in the projection guide). Each failed attempt logs a new
 warning, `104_011`. `AddResiliencePipelines` registers six policies rather than five. Nothing
 about truncation, ordering, progress, the failure record or the lease changes.

### Changed

- **An integrity failure now says whether the signature was absent or wrong, and the existing
 warning and error ids fire only for a signature that is present and does not verify.** An
 unsigned envelope — what every not-yet-restarted publisher emits during a `Permissive` roll —
 was logged as *"signature mismatch"* under the same id as a key mismatch or tampering, so an
 operator could not tell a rolling restart from an attack without correlating host start times.
 Four new event ids carry the unsigned case: `105_004` (command, permissive), `111_004` (event
 bundle, permissive), `105_105` (command, strict) and `111_105` (event bundle, strict). The
 existing `105_003`, `111_003`, `105_104` and `111_104` keep their numbers and their level but
 now mean a present signature that did not verify; an alert keyed on one of them goes quiet
 during a roll instead of firing for every unsigned message. Strict-mode rejections name the
 case in their exception message. `BusEnvelopeIntegrityVerifier.Verify` gains an overload with
 `out BusEnvelopeIntegrityFailure` (`None`, `Absent`, `Invalid`); the existing overload and the
 `BusEnvelopeIntegrityResult` values are unchanged. An absent signature no longer reaches the
 signer, which already answered `false` for it.