Stratara.Infrastructure
4.0.1
Prefix Reserved
See the version list below for details.
dotnet add package Stratara.Infrastructure --version 4.0.1
NuGet\Install-Package Stratara.Infrastructure -Version 4.0.1
<PackageReference Include="Stratara.Infrastructure" Version="4.0.1" />
<PackageVersion Include="Stratara.Infrastructure" Version="4.0.1" />
<PackageReference Include="Stratara.Infrastructure" />
paket add Stratara.Infrastructure --version 4.0.1
#r "nuget: Stratara.Infrastructure, 4.0.1"
#:package Stratara.Infrastructure@4.0.1
#addin nuget:?package=Stratara.Infrastructure&version=4.0.1
#tool nuget:?package=Stratara.Infrastructure&version=4.0.1
Stratara.Infrastructure
Derived. The behaviour described here is specified under
openspec/specs/. Those specifications are the source; this page explains and illustrates them.
License: MIT.
Cross-cutting infrastructure plumbing for the Stratara framework — the Tier-C glue that lets downstream apps wire authorization, DI composition, and worker-stack configuration with a single reference.
Contents
- Authorization decorators over command-outbox dispatch (
AuthorizingCommandOutboxDispatcher) — enforces[RequireRole]and[RequirePermission]on the command's runtime type before it reaches the outbox. - DI composition helpers that wire Mediator, Outbox, Identity, and EFCore into a hosted app.
- Configuration providers and option binders used by the worker stack.
Dependencies
Transitively depends on Stratara.Contracts, Stratara.EventSourcing.EntityFrameworkCore, Stratara.Mediator, Stratara.Outbox.RabbitMQ, Stratara.Sessions, Stratara.Shared.
Behavioural notes
AddSecurity() — IKeyStore registration (since 3.0.11)
AddSecurity() registers Stratara's security stack including the IKeyStore abstraction. The default is a TryAddSingleton<IKeyStore, DummyKeyStore> fallback — but DummyKeyStore since 3.0.11 throws InvalidOperationException in any environment other than Development (whitelist guard to prevent production data exposure from the demo encryption key). Hosts on Staging, QA, UAT, Preview, or any custom environment must register a real IKeyStore implementation before calling AddSecurity():
// Recommended composition root
if (builder.Environment.IsDevelopment())
{
builder.Services.AddSecurity(); // DummyKeyStore fallback is fine
}
else
{
// The production key store Stratara ships (Stratara.Security): KEK-wrapped, versioned
// per-scope DEKs. Register it before AddSecurity() so it wins the TryAdd race.
builder.Services.AddStrataraFileKeyStore(builder.Configuration);
builder.Services.AddSecurity();
}
Stratara ships one production IKeyStore — EnvelopeFileKeyStore, via AddStrataraFileKeyStore.
There is no built-in Azure Key Vault / AWS KMS / HSM store; if you need one, implement IKeyStore
against your provider and register it in place of the file store.
KeyStoreStartupProbe logs a Warning (event id LogEvents.KeyManagement.DummyKeyStoreActive = 112_001) at host start when the resolved IKeyStore is DummyKeyStore — even in Development — so an accidental dependency on the dummy is loud rather than silent.
Why the change: Before 3.0.11 the guard only blocked IsProduction(). Hosts in any other environment silently encrypted with the world-known constant pass-phrase "StrataraTestKey" baked into the shipping NuGet — a Staging or QA copy of production data could be decrypted by anyone reading the source. The whitelist guard makes this configuration crash-fast at host build instead of allowing silent data exposure.
AddCaching() — Redis registration
AddCaching() used to delegate to builder.AddRedisClient("redis") from Aspire.StackExchange.Redis. After the Aspire-wrapper removal it registers IConnectionMultiplexer directly via ConnectionMultiplexer.Connect(...) from StackExchange.Redis. The method signature is unchanged, but the Aspire-only side-effects are gone:
- No automatic Redis health check. Add one explicitly with
AddHealthChecks().AddRedis(connectionString)(fromAspNetCore.HealthChecks.Redis) if your host exposes/healthand you want Redis covered. - No automatic OpenTelemetry Redis instrumentation. Add
OpenTelemetry.Instrumentation.StackExchangeRedisand.AddRedisInstrumentation()to yourTracerProviderBuilderif you want Redis spans in your traces.
The connection-string lookup (ConnectionStrings:redis in configuration) is identical to the pre-cleanup behaviour.
| Product | Versions 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. |
-
net10.0
- Azure.Identity (>= 1.21.0)
- Microsoft.AspNetCore.Http.Abstractions (>= 2.3.12)
- Microsoft.Extensions.Configuration.Abstractions (>= 10.0.11)
- Microsoft.Extensions.DependencyInjection (>= 10.0.11)
- Microsoft.Extensions.Logging.Abstractions (>= 10.0.11)
- Microsoft.Extensions.Options.ConfigurationExtensions (>= 10.0.11)
- StackExchange.Redis (>= 3.1.31)
- Stratara.Contracts (>= 4.0.1)
- Stratara.EventSourcing.EntityFrameworkCore (>= 4.0.1)
- Stratara.Mediator (>= 4.0.1)
- Stratara.Outbox.RabbitMQ (>= 4.0.1)
- Stratara.Security (>= 4.0.1)
- Stratara.Sessions (>= 4.0.1)
- Stratara.Shared (>= 4.0.1)
NuGet packages (2)
Showing the top 2 NuGet packages that depend on Stratara.Infrastructure:
| Package | Downloads |
|---|---|
|
Stratara.EventSourcing.WorkerDefaults
Worker-host wiring composites for the Stratara event-sourced stack. IHostApplicationBuilder extensions (AddBackendServices, AddCommandWorkerServices, AddHeavyCommandWorkerServices, AddEventProjectionWorkerServices, AddEventStreamHashWorkerServices, AddSagaWorkerServices, AddOutboxWorkerServices, and AddCommandServices, AddEventProjectionServices and AddSagaServices without the bus-fed workers) bundle the per-concern DI calls so each worker host opts in with one line. |
|
|
Stratara.Testing.EntityFrameworkCore
Spin up the real Stratara event-sourcing write stack (EventSource, aggregation, snapshots, the EF Core write store) against a shared in-memory SQLite database in one call — production code paths, no Postgres, no Docker. Builds on Stratara.Testing's in-memory doubles. |
GitHub repositories
This package is not used by any popular GitHub repositories.
| Version | Downloads | Last Updated |
|---|---|---|
| 4.2.0 | 64 | 9/18/2026 |
| 4.1.1 | 58 | 9/16/2026 |
| 4.1.0 | 66 | 9/16/2026 |
| 4.0.4 | 690 | 9/14/2026 |
| 4.0.3 | 184 | 9/3/2026 |
| 4.0.2 | 616 | 9/3/2026 |
| 4.0.1 | 244 | 9/2/2026 |
| 4.0.0 | 164 | 8/31/2026 |
| 4.0.0-preview.1 | 77 | 8/31/2026 |
| 3.4.0 | 154 | 8/28/2026 |
| 3.3.0 | 125 | 8/25/2026 |
| 3.2.3 | 133 | 8/22/2026 |
| 3.2.2 | 123 | 8/14/2026 |
| 3.2.1 | 137 | 8/2/2026 |
| 3.2.0 | 140 | 7/18/2026 |
| 3.1.7 | 147 | 7/1/2026 |
| 3.1.6 | 551 | 6/22/2026 |
| 3.1.5 | 145 | 6/22/2026 |
| 3.1.4 | 153 | 6/15/2026 |
| 3.1.3 | 152 | 6/10/2026 |
### Added
- **Bundles about one aggregate are now applied one at a time within a process, a handler can say
"not yet", and the workers' parallelism is configurable.** The projection worker and the saga
worker open one consumer per processor on a shared queue, so two bundles published milliseconds
apart — the fact that creates an entity and the first fact about it — landed on two consumers and
ran at the same time, and whichever finished first won. A projection that then found no row for
the follow-up could only warn and acknowledge a fact it never applied, or throw and have the
bundle discarded; either way the read model lost the fact until a replay. The command worker has
never had this problem, because it takes a per-aggregate lock before it runs a command.
Both workers now take the same lock, keyed on the streams the bundle's events belong to. Bundles
about different aggregates still run in parallel; bundles about one aggregate queue behind each
other. The guarantee is per process — two replicas consuming the same subscription do not
serialise against each other — and the delivery guarantee now says so explicitly.
The lock serialises but does not order, so the residual case gets a second chance:
`PrecedingFactMissingException(streamId, eventTypeName)` in `Stratara.Abstractions` is the one
exception the workers retry — five attempts from 100 ms doubling, about three seconds in all,
under the new named policy `ResilienceNames.PrecedingFact`, with every aggregate lock released
between attempts so the creating fact can land in the gap. Once the retries are exhausted the
bundle fails as any unhandled failure does, and the warning logged on each attempt
(`104_010` for projections, `110_005` for sagas) names the stream and the event type. Any other
exception fails the bundle on the first attempt, as before.
`Projections:DegreeOfParallelism` and `Sagas:DegreeOfParallelism` set the number of consumers each
worker opens; a value that is not a positive number means the processor count, and `1` gives a
worker that applies every bundle in the order the transport delivers it.
A consumer that changes nothing gets the serialisation and the default parallelism it had. A
consumer that implements `IMessageBus` itself is unaffected: the retry runs inside the worker
before the transport sees an outcome. `BucketLockPool`, previously internal to the mediator, is
now public in `Stratara.Abstractions` so that every worker takes the same lock from the same
place; the mediator's own copy is gone.
### Changed
- **A published version now announces itself in the repository.** The release workflow gained a
third job that creates the GitHub release entry for the tag once the packages have reached
nuget.org, with the changelog section for that version as its notes — the same section the
packages already carry as their release notes. A prerelease tag is marked as one, so it does not
displace the current stable version. Until now the release list was maintained by hand and had
fallen behind: 4.0.0 was on nuget.org while the repository still presented 3.4.0 as current.
Nothing about what publishes, when, or on whose approval has changed.