FluentValidation 8.3.0

A validation library for .NET that uses a fluent interface to construct strongly-typed validation rules.

Install-Package FluentValidation -Version 8.3.0

dotnet add package FluentValidation --version 8.3.0

<PackageReference Include="FluentValidation" Version="8.3.0" />

paket add FluentValidation --version 8.3.0

#r "nuget: FluentValidation, 8.3.0"

// Install FluentValidation as a Cake Addin
#addin nuget:?package=FluentValidation&version=8.3.0

// Install FluentValidation as a Cake Tool
#tool nuget:?package=FluentValidation&version=8.3.0

Release Notes

FluentValidation 8 is a major release. Please read the upgrade notes at https://fluentvalidation.net/upgrading-to-8

Changes in 8.3.0:
* Fix issue in ASP.NET Core integration with GetServiceProvider not working correctly when invoked against a CustomContext/MessageBuilderContext.
* Improved how LanguageStringSource works with error-code overrides.
* Fix thread-safety issue with use of PropertyValidatorOptions.Empty (now removed).
* Improved how calls to When/Unless are handled internally.
* DelegatingValidator is now marked as deprecated.
* ShouldHaveChildValidator is now marked as deprecated.
* Improvements to Croatian language translations.
* Improvements to Georgian language translations.
* Resolved subtle bug where top-level WhenAsync wouldn't work correctly when wrapping a top-level call to When.

Changes in 8.2.3:
* Fix issue in WebApi integration where DataAnnotations validators could generate duplicate messages when in the same project as FluentValidation.

Changes in 8.2.2:
* Fix FluentValidation.DependencyInjection package name.

Changes in 8.2.1:
* Resolved issue using InjectValidator with RuleForEach.
* Add support for a default IValidatorInterceptor to be registered with the ASP.NET Core Service Provider.

Changes in 8.2.0:
* Add extensions for injecting child validators using the ASP.NET Core Service Provider.
* Implement RuleFor(...).ForEach(...) as an alternative to RuleForEach.
* WithLocalizedMessage is deprecated. Use the overload of WithMessage that takes a Func instead.

Changes in 8.1.3:
* Resolved issue where clientside validation was incorrectly generating metadata for rules with shared conditions.
* ScalePrecisionValidator now has a public method in the fluent interface.
* Fix placeholder names in ScalePrecisionValidator for consistency.
* Updates to Portuguese (Brazil) translations.

Changes in 8.1.2:
* Fix issue where shared When/Unless conditions didn't execute correctly when used with RuleForEach.
       
Changes in 8.1.1:
* Added RuleSetsExecuted property on ValidationResult.
* Resolved issue introduced in 8.1 where the shared condition cache does not work correctly with RuleForEach (#970).

Changes in 8.1:
* Add format support in message placeholders.
* Added support for overriding indexers for collection rules.
* Allow error codes to be used to override localization key in the Language Manager.
* Additional error details are now shown in the ShouldNotHaveValidationErrorFor test extension.
* Conditions defined with root-level When/WhenAsync/Unless/UnlessAsync are now only executed once (instead of once for each rule).
* Support Otherwise method chained from root-level When/WhenAsync/Unless/UnlessAsync.
* Minor wording changes to default English error messages.
* Japanese translation of the default error messages.
* Added Skip property to MVC5's CustomizeValidatorAttribute for parity with AspNetCore and WebApi.
* Remove type constraint on the OverridePropertyName overload that takes an expression.

Added Skip property to MVC5's CustomizeValidatorAttribute to bring parity with AspNetCore and WebApi integration.
Changes in 8.0:
* Support validating only specific properties by path.
* Added OnFailure method
* Deprecated RuleFor(..).SetCollectionValidator in favour of RuleForEach(...).SetValidator
* IStringSource.GetString now takes a validation context instead of a model instance.
* Introduce PropertyValidatorOptions in order to clean up the IPropretyValidator interface.
* Moved the legacy ValidatorAttribute and AttributedValidatorFactory into a separate FluentValidation.Attributes package.
* Remove the pre-7.0 localization mechanism
* Remove the pre-7.0 methods for custom validation
* Removed many other deprecated methods

Full release notes can be found at https://github.com/JeremySkinner/FluentValidation/blob/master/Changelog.txt

Dependencies

• .NETFramework 4.5

  • System.ComponentModel.Annotations (>= 4.4.1)

• .NETStandard 1.1

  • NETStandard.Library (>= 1.6.1)
  • System.Collections.Concurrent (>= 4.3.0)
  • System.ComponentModel.Primitives (>= 4.3.0)
  • System.ValueTuple (>= 4.5.0)

• .NETStandard 1.6

  • NETStandard.Library (>= 1.6.1)
  • System.Collections.Concurrent (>= 4.3.0)
  • System.ComponentModel.Annotations (>= 4.4.1)
  • System.ComponentModel.Primitives (>= 4.3.0)
  • System.ValueTuple (>= 4.5.0)

• .NETStandard 2.0

  • System.ComponentModel.Annotations (>= 4.4.1)

Used By

NuGet packages (866)

Showing the top 5 NuGet packages that depend on FluentValidation:

Package	Downloads
FluentValidation.AspNetCore AspNetCore integration for FluentValidation	26.7M
FluentValidation.DependencyInjectionExtensions Dependency injection extensions for FluentValidation	21.3M
FluentValidation.WebAPI ASP.NET WebApi integration for FluentValidation	3.1M
FluentValidation.MVC5 ASP.NET MVC 5 integration for FluentValidation	2.5M
Ocelot Ocelot is an API Gateway. The project is aimed at people using .NET running a micro services / service orientated architecture that need a unified point of entry into their system. In particular I want easy integration with IdentityServer reference and bearer tokens. reference tokens. Ocelot is a bunch of middlewares in a specific order. Ocelot manipulates the HttpRequest object into a state specified by its configuration until it reaches a request builder middleware where it creates a HttpRequestMessage object which is used to make a request to a downstream service. The middleware that makes the request is the last thing in the Ocelot pipeline. It does not call the next middleware. The response from the downstream service is stored in a per request scoped repository and retrived as the requests goes back up the Ocelot pipeline. There is a piece of middleware that maps the HttpResponseMessage onto the HttpResponse object and that is returned to the client. That is basically it with a bunch of other features.	2.2M

GitHub repositories (103)

Showing the top 5 popular GitHub repositories that depend on FluentValidation:

Repository	Stars
aspnetboilerplate/aspnetboilerplate ASP.NET Boilerplate - Web Application Framework	9.6K
NancyFx/Nancy Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono	7.1K
Sonarr/Sonarr Smart PVR for newsgroup and bittorrent users.	6.4K
ThreeMammals/Ocelot .NET core API Gateway	6.2K
abpframework/abp Open Source Web Application Framework for ASP.NET Core	6.1K

Version History