Stratara.EventSourcing.WorkerDefaults 3.1.3

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Stratara.EventSourcing.WorkerDefaults --version 3.1.3
                    


                    

                
NuGet\Install-Package Stratara.EventSourcing.WorkerDefaults -Version 3.1.3
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.WorkerDefaults" Version="3.1.3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Stratara.EventSourcing.WorkerDefaults" Version="3.1.3" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Stratara.EventSourcing.WorkerDefaults" />
                    


                            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.WorkerDefaults --version 3.1.3
                    


                    

                
#r "nuget: Stratara.EventSourcing.WorkerDefaults, 3.1.3"
#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.WorkerDefaults@3.1.3
#: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.WorkerDefaults&version=3.1.3
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Stratara.EventSourcing.WorkerDefaults&version=3.1.3
                    


                            Install as a Cake Tool

Stratara.EventSourcing.WorkerDefaults

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

One-stop IHostApplicationBuilder composites that wire together the Stratara event-sourced stack for each host shape (API, command worker, event-projection worker, saga worker, event-stream-hash worker, outbox worker). Reference this package from each host instead of repeating the per-concern DI call chain.

What's in the box

Composite Wires
AddBackendServices Common framework services (messaging, identity, session, security, mapping, resilience) + mediator + write store + outbox dispatcher. For API hosts that dispatch commands but don't process them.
AddCommandWorkerServices Common + mediator + mediator-worker (hosted service that consumes the command topic into the in-process mediator) + write store + event sourcing + outbox dispatcher.
AddEventProjectionWorkerServices Common + write store + projection-replay state + projection worker.
AddSagaWorkerServices Common + write store + event sourcing + outbox dispatcher + saga worker.
AddEventStreamHashWorkerServices Common + write store + event-stream-hashing worker.
AddOutboxWorkerServices Common + write store + outbox dispatcher + outbox-retry worker.

The composites live in the Microsoft.Extensions.Hosting namespace so call sites read naturally:

// Command-handling worker host:
builder.AddCommandWorkerServices();

// API host that only dispatches commands:
builder.AddBackendServices();

Dependencies

This package pulls the framework's Tier-C pieces (Stratara.Infrastructure, Stratara.Outbox.RabbitMQ, Stratara.Projections, Stratara.Sagas, Stratara.EventSourcing.EntityFrameworkCore) so a single PackageReference is enough for a worker host. The lean Stratara.ServiceDefaults (OTel + Serilog) and Stratara.ServiceDefaults.AspNetCore (health-check endpoints + ASP.NET OTel) stay separate so non-worker hosts don't drag the Tier-C runtime in.

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

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
3.1.3 0 6/10/2026
3.1.2 60 6/5/2026
3.1.1 183 6/1/2026
3.1.0 102 5/30/2026
3.0.23 98 5/28/2026

### Added

- **Mediator tenant-isolation behavior** (`Stratara.Mediator`) — `AddStrataraTenantIsolation()`
 registers a pipeline behavior that enforces tenant isolation at the mediator entrance, before the
 handler runs, for any request that opts in via the new `ITenantScopedRequest` marker
 (`Stratara.Abstractions.Multitenancy`). The behavior compares the request's `TenantId` (data owner)
 against the ambient session's data-owner tenant and rejects a mismatch with the new
 `TenantAccessDeniedException` (translated to HTTP 403 on ASP.NET hosts). `TenantIsolationMode.Default`
 enforces only the subject match (privileged cross-tenant operations pass when the endpoint promoted
 the session subject to the target); `TenantIsolationMode.Strict` additionally routes every
 cross-tenant operation through the new `ICrossTenantAuthorizer`, whose shipped default denies all
 cross-tenant access until a consumer registers its own authorizer. Complements the existing
 database-side `ApplyGlobalTenantQueryFilters` with a command-/query-entrance guard. New log-event
 IDs `114_101`/`114_102`/`114_003` in `Stratara.Diagnostics`.
- **`Stratara.Abstractions.Persistence.ConcurrencyConflictException`** — provider-agnostic
 wrapper for an optimistic-concurrency conflict detected during commit. Allows framework-level
 code in `Stratara.Projections` (and any consumer outside the `EntityFrameworkCore` package) to
 react to concurrency without taking an EF Core dependency. EF Core's `DbUpdateConcurrencyException`
 (and provider equivalents) flow through this type.

### Changed

- **`EfTransaction.SaveChangesAsync`** (in `Stratara.EventSourcing.EntityFrameworkCore`) now
 wraps `DbUpdateConcurrencyException` thrown by EF Core in the new
 `ConcurrencyConflictException`. PostgreSQL unique-violation paths remain on `DbUpdateException`
 (different semantics — duplicate-key on insert vs. stale-row on update/delete).
- **`EventSource.SaveChangesAsync`** (write-side append flow) extends its concurrency-handling
 catch to the new exception type so the existing append-conflict recovery path keeps working
 after the wrap. Behaviour for both EF concurrency conflicts and PostgreSQL unique violations
 is unchanged.

### Fixed

- **`TenantProjection` no longer aborts the event bundle on a parallel delete race.** The two
 delete handlers (`TenantDeleted`, `CustomerTenantsDeleted`) now swallow
 `ConcurrencyConflictException` silently — a missing row is the desired end-state of a delete.
 Before this fix, a consumer-side customer-delete cascade saga that emits both
 `CustomerTenantsDeleted` and a follow-up `TenantDeleted` for the same tenants would race the
 two parallel projection bundles on the same `TenantView` row; the loser threw
 `DbUpdateConcurrencyException` out of `SaveChangesAsync`, which propagated through
 `ProjectionWorker` and caused `RabbitMqBus` to roll back the entire bundle — including
 sibling projections that had already committed. Update handlers (rename / activate /
 deactivate / locale / customer-assigned) keep their current behaviour: a concurrency failure
 there is a real race that propagates.