FluentValidation 7.5.1 The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org. Prefix Reserved

.NET Standard 1.1 .NET Framework 4.5
There is a newer version of this package available.
See the version list below for details.
Install-Package FluentValidation -Version 7.5.1
dotnet add package FluentValidation --version 7.5.1
<PackageReference Include="FluentValidation" Version="7.5.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FluentValidation --version 7.5.1
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: FluentValidation, 7.5.1"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install FluentValidation as a Cake Addin
#addin nuget:?package=FluentValidation&version=7.5.1

// Install FluentValidation as a Cake Tool
#tool nuget:?package=FluentValidation&version=7.5.1
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

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

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard1.1 netstandard1.2 netstandard1.3 netstandard1.4 netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1
.NET Framework net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen30 tizen40 tizen60
Universal Windows Platform uap uap10.0
Windows Phone wpa81
Windows Store netcore netcore45 netcore451
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1.2K)

Showing the top 5 NuGet packages that depend on FluentValidation:

Package Downloads
FluentValidation.AspNetCore The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

AspNetCore integration for FluentValidation

FluentValidation.DependencyInjectionExtensions The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

Dependency injection extensions for FluentValidation

MicroElements.Swashbuckle.FluentValidation The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

Swagger ISchemaFilter that uses FluentValidation validators instead System.ComponentModel based attributes.

FluentValidation.WebAPI The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

ASP.NET WebApi integration for FluentValidation

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.

GitHub repositories (133)

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

Repository Stars
aspnetboilerplate/aspnetboilerplate
ASP.NET Boilerplate - Web Application Framework
abpframework/abp
Open Source Web Application Framework for ASP.NET Core
dotnet-architecture/eShopOnWeb
Sample ASP.NET Core 6.0 reference application, powered by Microsoft, demonstrating a layered application architecture with monolithic deployment model. Download the eBook PDF from docs folder.
Sonarr/Sonarr
Smart PVR for newsgroup and bittorrent users.
NancyFx/Nancy
Lightweight, low-ceremony, framework for building HTTP based services on .Net and Mono
Version Downloads Last updated
11.0.2 3,229 5/27/2022
11.0.1 268,381 5/7/2022
11.0.0 137,532 4/30/2022
10.4.0 1,845,140 3/11/2022
10.3.6 4,816,409 12/13/2021
10.3.5 845,964 11/30/2021
10.3.4 2,726,206 10/22/2021
10.3.3 4,197,719 8/24/2021
10.3.1 297,227 8/19/2021
10.3.0 3,145,607 7/9/2021
10.2.3 3,370,456 6/3/2021
10.2.2 226,392 6/1/2021
10.2.1 446,285 5/30/2021
10.2.0 119,705 5/28/2021
10.1.0 2,309,291 4/28/2021
10.0.4 1,410,168 4/17/2021
9.5.4 1,427,183 4/5/2021
9.5.3 2,127,843 3/15/2021
9.5.2 917,491 3/8/2021
9.5.1 3,193,896 2/11/2021
9.5.0 1,518,362 1/31/2021
9.4.0 1,660,271 1/14/2021
9.3.0 7,281,862 11/10/2020
9.3.0-preview3 23,581 10/19/2020
9.3.0-preview2 108,037 9/15/2020
9.3.0-preview1 8,564 8/26/2020
9.2.2 4,136,071 9/20/2020
9.2.1 12,703 9/19/2020
9.2.0 4,570,552 8/26/2020
9.1.3 696,597 8/19/2020
9.1.2 536,870 8/12/2020
9.1.1 402,094 8/8/2020
9.1.0 25,000 8/8/2020
9.0.1 2,569,979 7/14/2020
9.0.0-preview5 64,323 5/23/2020
9.0.0-preview4 91,424 4/22/2020
9.0.0-preview3 129,522 2/29/2020
9.0.0-preview2 26,801 2/21/2020
9.0.0-preview1 63,369 2/8/2020
8.6.3 2,111,279 8/28/2020
8.6.2 15,768,690 2/29/2020
8.6.1 7,580,337 12/28/2019
8.6.0 2,828,666 12/4/2019
8.5.1 2,531,842 11/2/2019
8.5.0 3,614,777 9/24/2019
8.5.0-preview5 53,958 9/1/2019
8.5.0-preview4 77,813 7/23/2019
8.5.0-preview3 26,785 7/10/2019
8.5.0-preview2 49,362 6/13/2019
8.5.0-preview1 46,716 5/10/2019
8.4.0 9,424,478 5/10/2019
8.3.0 2,289,385 4/24/2019
8.2.3 475,995 4/12/2019
8.2.2 687,375 4/5/2019
8.2.1 238,181 4/4/2019
8.2.0 737,876 3/26/2019
8.1.3 3,892,049 1/25/2019
8.1.2 1,707,709 12/18/2018
8.1.1 471,379 12/11/2018
8.1.0 397,620 12/6/2018
8.1.0-preview2 26,594 11/14/2018
8.1.0-preview1 25,570 10/14/2018
8.0.101 557,978 11/24/2018
8.0.100 2,881,280 9/4/2018
8.0.0 715,391 8/16/2018
8.0.0-rc1 44,461 7/24/2018
8.0.0-preview4 22,517 7/16/2018
8.0.0-preview3 21,217 7/13/2018
8.0.0-preview2 21,004 7/13/2018
7.6.105 953,002 8/11/2018
7.6.104 1,981,417 7/6/2018
7.6.103 928,777 6/16/2018
7.6.102 205,151 6/14/2018
7.6.101 65,150 6/13/2018
7.6.100 143,631 6/7/2018
7.6.0 294,123 6/1/2018
7.6.0-preview1 37,517 4/12/2018
7.5.2 2,548,756 3/16/2018
7.5.1 183,839 3/11/2018
7.5.0 626,627 2/26/2018
7.4.0 991,633 1/26/2018
7.3.4 831,252 1/2/2018
7.3.3 157,370 12/22/2017
7.3.2 52,127 12/21/2017
7.3.1 242,470 12/13/2017
7.3.0 40,877 12/13/2017
7.3.0-beta3 25,636 12/8/2017
7.3.0-beta2 39,715 11/20/2017
7.3.0-beta1 22,617 11/11/2017
7.2.1 1,958,297 10/24/2017
7.2.0 640,265 10/5/2017
7.2.0-beta3 38,493 9/5/2017
7.2.0-beta2 24,454 8/22/2017
7.2.0-beta1 21,063 8/19/2017
7.1.1 1,376,621 7/25/2017
7.1.0 393,246 6/28/2017
7.1.0-beta1 20,873 6/24/2017
7.0.3 606,116 6/7/2017
7.0.2 212,349 5/26/2017
7.0.1 60,566 5/23/2017
7.0.0 358,801 5/19/2017
7.0.0-beta3 24,976 5/1/2017
7.0.0-beta2 24,544 4/17/2017
7.0.0-beta1 22,057 4/7/2017
6.4.1 1,016,688 3/15/2017
6.4.1-beta1 21,793 3/13/2017
6.4.0 671,877 3/3/2017
6.4.0-rc4 143,318 2/13/2017
6.4.0-rc3 33,062 2/3/2017
6.4.0-rc2 37,132 1/30/2017
6.4.0-rc1 20,924 1/30/2017
6.4.0-beta9 84,736 11/21/2016
6.4.0-beta8 47,726 10/31/2016
6.4.0-beta7 21,484 10/28/2016
6.4.0-beta6 21,899 10/25/2016
6.4.0-beta5 21,583 10/24/2016
6.4.0-beta4 21,615 10/21/2016
6.4.0-beta3 66,314 7/4/2016
6.4.0-beta2 22,485 7/1/2016
6.4.0-beta10 20,771 1/30/2017
6.4.0-beta1 24,718 6/28/2016
6.3.4-alpha 315,434 6/1/2016
6.3.3-alpha 21,163 5/27/2016
6.2.1 3,083,749 2/26/2016
6.2.1-beta1 25,296 2/24/2016
6.2.0 108,841 2/22/2016
6.2.0-beta1 21,290 2/12/2016
6.1.0 300,907 1/18/2016
6.0.2 95,536 1/5/2016
6.0.1 34,044 1/5/2016
6.0.0 83,508 12/22/2015
5.6.2 1,014,393 5/29/2015
5.6.1 28,373 5/29/2015
5.5.0 803,417 10/31/2014
5.4.0 477,200 7/3/2014
5.3.0 84,784 5/27/2014
5.2.0 59,202 5/21/2014
5.1.0 550,346 3/11/2014
5.0.0.1 290,026 10/24/2013
4.0.0.1 202,891 7/18/2013
4.0.0 93,664 4/29/2013
3.4.6 284,423 8/30/2012
3.4.0 55,624 8/17/2012
3.3.1 50,052 3/30/2012
3.2.0 59,620 11/14/2011
3.1.0 48,747 7/30/2011
3.0.0.1 23,534 7/5/2011
3.0.0 31,650 6/25/2011
2.0.0 48,142 1/9/2011
1.3.0 78,887 1/7/2011

Changes in 7.5.1:
* Resolved issues with referencing FluentValidation from legacy PCLs.
* Added support for CustomizeValidatorAttribute to the legacy WebApi integration for consistency with MVC5 and AspNetCore.

Changes in 7.5:
* Better handling of clientside messages when using custom overriden language resources
* Added flag in the ValidationContext's RootDataContext when a validator is invoked by the automatic MVC/WebApi integration
* Improvements to some of the validation tester's messages
* Added Transform method to transform property values prior to validation
* Improve support for DisplayAttribute / DisplayNameAttribute when inferring property display name
* New language translations (Slovak/Hebrew/Brazilian Portuguese)
* Cache display names by default
* Ensure ShouldHaveChildValidator test method works with model-level rules
* Removed netstandard1.0 support. Supported platforms are now netstandard1.1, netstandard2.0 and net45.

Changes in 7.4:
* Improved syntax for DependentRules
* ValidationException serialization support when running on full framework
* Added ComparisonProperty placeholder to some validators
* The Test Helper now correctly handles read-only properties
* Add CancellationToken support to ValidateAndThrowAsync and various ValidateAsync overloads
* Improved functionality for custom MessageBuilders
* Updated AspNetCore integration to MVC version 2.0.2
* Update MVC5 AddToModelState extension not to overwrite existing attempted values
* Added SetRulesetForClientsideMessages method for MVC5/AspNetCore as an alternative to using the RulesetForClientSideMessagesAttribute

Changes in 7.3:
* Major changes to AspNetCore integration including better support for collections and implicit validation (opt-in)
* Fix - Updated EnumValidator's Flags support to handle the ~0 value
* Fix - TestHelper checking for child validator would respond with the wrong type
* Fix - Updated translations for some validators
* Fix - Overload of WithName that takes a lambda generated an exception
* Added versions of WhenAsync and UnlessAsync that support CancellationTokens
* Simplify calls to DependentRules
* Add Skip property to CustomizeValidatorAttribute in the ASP.NET Core integration

Changes in 7.2:
* Updated AspNetCore integration to support IValidatableObject
* Updated AspNetCore integration to allow mixing multiple validation strategies in the same model
* Updated AspNetCore integration to support RulesetForClientsideMessagesAttribute
* Fix - Property names were not generated properly for nested types when using AddFailure inside a Custom validator
* Fix - NullReferenceException when using CustomAsync but the validator is invoked synchronously
* Fix - Clientside integration in AspNetCore being resolved from the root-level service provider
* Fix - Allow empty string to be passed to OverridePropertyName

Changes in 7.1.1:
* Fix - Incorrect property name was generated when using RuleForEach combined with SetValidator
* Fix - Nesting async validators inside DependentRules didn't wait for completion

Changes in 7.1:
* New RuleFor().Custom() method as a replacement for the old, deprecated Custom method
* Improved messages in the ShouldHaveChildValidator test extension
* Test helper works with nested properties
* Additional overload of WithState allows access to collection item when used with RuleForEach
* Fix - Wrong values were generated as part of the MVC5 clientside integration for MinLength and MaxLength validators
* Fix - AssemblyScanner now excludes abstract and generic types
* Fix - InvalidCastException when using lazy WithMessage combined with RuleForEach
* WithState enhanced to allow access to the ValidationContext

Changes in 7.0:

7.0 is a major release that contains several breaking changes, especially with Localization. If you use FluentValidation's support for localization please read the updated documentation: https://github.com/JeremySkinner/FluentValidation/wiki/f.-Localization

* Localization rewrite to not require satellite assemblies
* New 'Custom' rule method replaces the root-level Custom method
* Switch to Netstandard based build process
* Assemblies are now signed / strongly named - see https://github.com/JeremySkinner/FluentValidation/wiki/l.-Strong-naming-and-signed-packages
* Fix - Possible NullReferenceException in the AspNetCore clientside integration for length validators
* Fix - Don't clear the ModelValidatorProviders collection by default in the AspNetCore integration (added new ClearValidatorProviders property to control this behaviour)
* Fix - Ensure IValidatorFactory is resolved from request scope in asp.net core integration
* Fix - Property getter that throws an exception causes validation to fail in WebApi integration
* Fix - Issue in AspNetCore integration where we tried to resolve a collection validator in some situations where a class validator should be used
* Fix - Incorrect clientside validation attributes generated for email validator and credit card validator in the asp.net core integration
* Fix - Child model validation now works in webapi integration
* Improve splitting of PascalCased property names to support uppercase character sequences
* ValidationResult.ErrorCode property now always returns the type of the PropertyValidator that generated the message, unless it's been explicitly overriden

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