Stratara.Validation 4.6.0

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There is a newer version of this package available.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.Validation --version 4.6.0
                    


                    

                
NuGet\Install-Package Stratara.Validation -Version 4.6.0
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.Validation" Version="4.6.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Stratara.Validation" Version="4.6.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Stratara.Validation" />
                    


                            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.Validation --version 4.6.0
                    


                    

                
#r "nuget: Stratara.Validation, 4.6.0"
#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.Validation@4.6.0
#: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.Validation&version=4.6.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Stratara.Validation&version=4.6.0
                    


                            Install as a Cake Tool

Stratara.Validation

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

License: MIT.

Vendor-neutral request validation for Stratara's CQRS pipeline. A mediator pipeline behavior runs your IValidator<T> implementations before the handler and throws an aggregated StrataraValidationException when validation fails — no third-party validation dependency in the default path.

Quick start

// 1. Register the behavior (outermost) + discover validators.
builder.Services
    .AddStrataraValidation()
    .AddValidatorsFromAssemblyContaining<IAppMarker>();

// 2. Write a validator (the contracts live in Stratara.Abstractions.Validation).
public sealed class CreateOrderValidator : IValidator<CreateOrder>
{
    public ValueTask<ValidationResult> ValidateAsync(CreateOrder cmd, CancellationToken ct = default)
        => ValueTask.FromResult(string.IsNullOrWhiteSpace(cmd.CustomerId)
            ? new ValidationResult([new ValidationFailure(nameof(cmd.CustomerId), "Customer is required.")])
            : ValidationResult.Success);
}

// 3. Catch the failure in your global handler and map it to your error model.
catch (StrataraValidationException ex)
{
    // ex.Failures -> RFC-7807 ProblemDetails 400, your error codes, etc.
}

How it works

  • AddStrataraValidation() registers IPipelineBehavior for both request shapes (IRequest and IRequest<TResult>). Register it before other behaviors so validation runs outermost — before authorization, auditing, and the handler.
  • All validators for a request run; their failures are aggregated.
  • Severity policy: only ValidationSeverity.Error blocks (throws StrataraValidationException). Warning and Info failures pass through and are logged.

Contracts

The validation contracts (IValidator<T>, ValidationResult, ValidationFailure, ValidationSeverity, StrataraValidationException) live in Stratara.Abstractions (namespace Stratara.Abstractions.Validation) so consumers can implement validators and catch the exception without referencing this behavior package.

The contract shape is FluentValidation-compatible; an optional Stratara.Validation.FluentValidation adapter can be shipped to plug FluentValidation validators into the same pipeline.

Dependencies

  • Stratara.Abstractions
  • Stratara.Mediator
  • Stratara.Diagnostics
  • Microsoft.Extensions.DependencyInjection.Abstractions
  • Microsoft.Extensions.Logging.Abstractions
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
4.8.0 144 11/6/2026
4.7.1 83 11/5/2026
4.7.0 536 10/30/2026
4.6.1 95 10/29/2026
4.6.0 192 10/28/2026
4.5.0 272 10/28/2026
4.4.10 203 10/26/2026
4.4.9 111 10/26/2026
4.4.8 252 10/24/2026
4.4.7 115 10/23/2026
4.4.6 221 10/22/2026
4.4.5 648 10/14/2026
4.4.4 395 10/10/2026
4.4.3 124 10/10/2026
4.4.2 470 10/2/2026
4.4.1 429 9/29/2026
4.4.0 152 9/27/2026
4.3.1 136 9/25/2026
4.3.0 400 9/23/2026
4.2.0 160 9/18/2026
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An erasure shreds every key that names the subject, and nothing stopped the next encryption for that subject
from creating a new one: a key store asked for a scope it does not hold creates a first version. A job, a request
in flight or a second process that encrypted for an erased subject afterwards got a fresh key, and what it wrote
stayed readable for good. The key store now records an erased subject and refuses to create a key for it again.

### Added

- **`IKeyStore.MarkSubjectErasedAsync(KeySubject)`** records that a tenant or user has been erased. It has a
 default implementation that throws `NotSupportedException`, so an existing key store still compiles.
- **`KeySubject`** names the tenant or user, and `KeySubject.Covers(KeyScope)` states which keys belong to its
 erasure: for a tenant, a key of any level that names it; for a user, a user-level key that names it.
- **`KeyScopeErasedException`** (an `InvalidOperationException`) is what a key store throws for such a scope. It
 carries the refused `Scope`.

### Changed

- **An encryption for an erased subject fails.** After a subject's erasure, `GetOrCreateCurrentKeyAsync` and
 `RotateAsync` throw `KeyScopeErasedException` for every scope the subject covers, whether or not it ever held a
 key, and create nothing. The blob encryptor, the encrypting settings store and the field-encrypting serializer
 pass it through. Code that erased a subject and then wrote encrypted data for it again now sees the exception;
 the mark is permanent and cannot be lifted. Revoking every version of a scope is not an erasure and marks nothing.
- **`ISubjectEraser` marks the subject before it sweeps any plane**, so an encryption racing the erasure
 either creates its key first, and that key is shredded with the rest, or is refused. A key store that cannot mark
 a subject leaves the erasure as before and logs `SubjectNotMarkable` (112009).
- **The file-backed key store writes format version 2**, which holds the marks, and refuses to open a file in a
 newer format than it knows. `InMemoryKeyStore` refuses an erased subject as the file store does; `DummyKeyStore`
 refuses to mark one, as it refuses every erasure operation.

**Upgrading:**
- **Upgrade every process that shares a key store file in one step.** A process on an earlier release reads a
 version-2 file, ignores the marks, creates keys for an erased subject and drops the marks the next time it writes
 the file. A version-1 file needs no migration. Rolling back is possible but loses the marks on the first write.
- **Map `KeyScopeErasedException` to your answer for data that is gone**, if a request can reach an encryption for
 a subject after its erasure.
- **A key store of your own implements `MarkSubjectErasedAsync`**, refusing in `GetOrCreateCurrentKeyAsync` and
 `RotateAsync` every scope a marked subject `Covers`. Without it the erasure warns and the gap stays open.