FastValidator 3.0.0

There is a newer version of this package available.
See the version list below for details.
dotnet add package FastValidator --version 3.0.0                
NuGet\Install-Package FastValidator -Version 3.0.0                
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="FastValidator" Version="3.0.0" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FastValidator --version 3.0.0                
#r "nuget: FastValidator, 3.0.0"                
#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.
// Install FastValidator as a Cake Addin
#addin nuget:?package=FastValidator&version=3.0.0

// Install FastValidator as a Cake Tool
#tool nuget:?package=FastValidator&version=3.0.0                

High performance lightweight validation framework using fluent API

What is FastValidator?

FastValidator is a simple lightwight library for validation of business rules against object. It uses fluent API and declarative style to speceify rules

This is the main repository for AutoMapper, but there's more:

How do I get started?

First, create a validator class dirived from BaseValidator<>:

    public class CreateEmployeeRequestValidator : BaseValidator<CreateEmployeeRequest>
    {
        public CreateEmployeeRequestValidator()
        {
            RuleFor(x => x.EmployeeID).GreaterThan(3).WithMessage("Message");
            RuleFor(x => x.FirstName).NotEmpty();
            RuleFor(x => x.DateOfBirth).LessThanToday().NotNull();
            RuleFor(x => x.DateOfBirth).NotNull();
        }
    }

Then in your application code, execute:

    var validator = new CreateEmployeeRequestValidator();

    var request = new CreateEmployeeRequest
    {
        FirstName = "asdf",
        EmployeeID = 1,
        DateOfBirth = dateOfBirth
    };

    validator.Validate(request);
Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-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
3.0.1 106 5/17/2024
3.0.0 127 4/24/2024
2.0.0.3 1,742 5/21/2018
2.0.0.2 1,075 3/6/2018
2.0.0.1 933 11/24/2017
2.0.0 1,041 11/22/2017
1.0.0.2 985 3/17/2017
1.0.0.1 958 3/6/2017

Migrated to .NET 8.0