Stratara.Projections 3.1.5

.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There is a newer version of this package available.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.Projections --version 3.1.5
                    


                    

                
NuGet\Install-Package Stratara.Projections -Version 3.1.5
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.Projections" Version="3.1.5" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Stratara.Projections" Version="3.1.5" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Stratara.Projections" />
                    


                            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.Projections --version 3.1.5
                    


                    

                
#r "nuget: Stratara.Projections, 3.1.5"
#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.Projections@3.1.5
#: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.Projections&version=3.1.5
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Stratara.Projections&version=3.1.5
                    


                            Install as a Cake Tool

Stratara.Projections

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

Projection runtime for the Stratara event-sourced stack. Discovers IProjection implementations in the consumer's application assemblies, dispatches event bundles to them, and applies the resulting change sets atomically via the read-model repository layer.

What's in the box

Folder Contents
Services/ ProjectionManager (event-bundle → matching projection-handlers fan-out), ProjectionHandler<TEvent> base class, ProjectionMethodInvoker (reflection-cached method-pointer dispatch into consumer projections), checkpoint plumbing
Multitenancy/ TenantProjection — the framework's own opinionated tenant aggregate projection. Skip the registration if your application has its own tenancy model
Diagnostics/Extensions/ Source-generated LoggerProjectionExtensions, LoggerChangeSetExtensions, LoggerUpdateExtensions — typed [LoggerMessage] surfaces under the Stratara.Projection.* / Stratara.ChangeSet.* / Stratara.Update.* event-ID bands

Quick start

// In your EventProjection worker:
builder.Services.AddProjectionsFromAssemblyContaining<MyAppProjectionMarker>();

Then implement IProjection in your application assembly. The projection manager picks them up automatically.

Dependencies

  • Stratara.Contracts — for EventBundle + IEvent<T>.
  • Stratara.Domain — for the framework's Tenant aggregate (only consumed by TenantProjection).
  • Stratara.Shared — for change-tracking primitives, reflection cache, partitioning helpers, diagnostics base.
  • Microsoft.Extensions.Hosting.Abstractions + Microsoft.Extensions.Options.ConfigurationExtensions — for projection-worker checkpointing options.
  • JetBrains.Annotations — for static-analysis attributes on projection-handler conventions.
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.Projections:

Package Downloads
Stratara.EventSourcing.EntityFrameworkCore

EF Core persistence for the Stratara event-sourced stack on PostgreSQL — write-store, read-store, ASP.NET Identity store, shared conventions, value generators, and UnitOfWork primitives. Targets Npgsql with pgvector.
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 0 7/18/2026
3.1.7 140 7/1/2026
3.1.6 563 6/22/2026
3.1.5 145 6/22/2026
3.1.4 167 6/15/2026
3.1.3 156 6/10/2026
3.1.2 162 6/5/2026
3.1.1 229 6/1/2026
3.1.0 150 5/30/2026
3.0.23 138 5/28/2026

### Added

- **Configurable snapshot strategy** (`Stratara.Abstractions`, `Stratara.Infrastructure`) — the
 snapshot cadence is no longer hard-coded. A new `Stratara.Abstractions.EventSourcing.ISnapshotStrategy`
 decides, per stream, whether the event-sourcing runtime should write a snapshot:
 `bool ShouldSnapshot(Type aggregateType, long currentVersion, long lastSnapshotVersion)`.
 `AddEventSourcing()` registers the default `VersionThresholdSnapshotStrategy` (snapshot every 50
 versions — identical to the previous behaviour) via `TryAddSingleton`, so existing consumers see no
 change. To take over the policy, register your own singleton `ISnapshotStrategy` (it overrides the
 default whether registered before or after `AddEventSourcing()`): vary the threshold per aggregate
 type, construct `new VersionThresholdSnapshotStrategy(threshold)` for a different uniform cadence, or
 register `NoSnapshotStrategy` to disable snapshotting entirely. This replaces the previously
 hard-coded `UseSnapshots`/`SnapshotRange` constants in the default snapshot service, which were not
 actually configurable despite the documentation implying they were.
- **`AddDomainEventTypesFromAssemblyContaining<T>()`** (`Stratara.Abstractions`) — registers *only* the
 domain event types consumed by an assembly's aggregate `Apply(TEvent)` methods in the trusted-type
 resolver, without registering the aggregate types themselves and without pulling any projection / saga
 / command-handler classes into DI. Use it in a host that only needs to deserialize event payloads off
 the message bus or event stream — typically a dedicated projection or saga worker — but must not wire
 the handler classes (and their runtime dependencies) that `AddProjectionsFromAssemblyContaining<T>`
 would register. Complements the existing `AddAggregatesFromAssemblyContaining<T>` (which additionally
 registers the aggregate types) and `AddTrustedType<T>` (single type).