DevSource.Stack.Notifications 4.0.0

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package DevSource.Stack.Notifications --version 4.0.0
                    


                    

                
NuGet\Install-Package DevSource.Stack.Notifications -Version 4.0.0
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="DevSource.Stack.Notifications" Version="4.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="DevSource.Stack.Notifications" Version="4.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="DevSource.Stack.Notifications" />
                    


                            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 DevSource.Stack.Notifications --version 4.0.0
                    


                    

                
#r "nuget: DevSource.Stack.Notifications, 4.0.0"
#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. 
#:package DevSource.Stack.Notifications@4.0.0
#: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=DevSource.Stack.Notifications&version=4.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=DevSource.Stack.Notifications&version=4.0.0
                    


                            Install as a Cake Tool

DevSource.Stack.Notifications

NuGet NuGet Downloads License: MIT .NET

DevSource.Stack.Notifications is a lightweight, fluent validation library implementing the Notification Pattern. It allows you to replace exceptions with domain notifications for a cleaner, more robust error handling strategy in .NET applications.

Key Features

  • Fluent API: Clean, chainable validation rules (e.g., .IsNotNullOrEmpty(...).IsEmail(...)).
  • Notification Pattern: Accumulate errors instead of throwing exceptions immediately.
  • No External Dependencies: Pure .NET Standard implementation.
  • Comprehensive Rules: Built-in support for strings, numbers, dates, emails, passwords, files, collections, credit cards, and more.
  • Brazilian Localization: Native validation for CPF, CNPJ, and Brazilian phone numbers.

Getting Started

Installation

dotnet add package DevSource.Stack.Notifications

Quick Usage

Inherit from Notifier and use ValidationRules<T> to validate your entities:

public class User : Notifier
{
    public string Name { get; private set; }
    public string Email { get; private set; }

    public User(string name, string email)
    {
        Name = name;
        Email = email;

        // Validation Example
        AddNotifications(new ValidationRules<User>()
            .IsNotNullOrEmpty(nameof(Name), Name)
            .MinLength(nameof(Name), Name, 3)
            .IsNotNullOrEmpty(nameof(Email), Email)
            .IsEmail(nameof(Email), Email)
        );
    }
}

Check for notifications in your service or controller:

var user = new User("John", "invalid-email");

if (user.HasNotifications)
{
    foreach (var notification in user.Notifications)
    {
        Console.WriteLine(notification.Message);
    }
}

Documentation

For full documentation, advanced usage examples (conditional validation, combining validators, ASP.NET Core integration), and contribution guidelines, please visit the GitHub Repository.

License

This project is licensed under the MIT License.

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.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  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.

  • net8.0

    • No dependencies.

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
4.0.0 143 2/20/2026
3.0.1 187 1/31/2026 3.0.1 is deprecated because it is no longer maintained and has critical bugs.
3.0.0 298 12/15/2025 3.0.0 is deprecated because it is no longer maintained and has critical bugs.
2.0.0 320 6/17/2025
1.0.10 293 4/9/2025
1.0.9 244 11/29/2024
1.0.8 227 9/16/2024
1.0.6 200 9/10/2024
1.0.5 206 9/10/2024
1.0.4 218 9/1/2024
1.0.3 235 9/1/2024
1.0.2 201 8/3/2024
1.0.1 194 7/29/2024
1.0.0 196 7/25/2024

### Breaking Changes
     - Significant changes to method signatures and removal of deprecated methods to improve library consistency and performance. These changes may require updates in consuming applications.
     - Changed validation logic for `IsBrazilianPhone`, `IsInternationalPhone`, `IsCreditCard`, `IsCpf`, `IsCnpj`, `HasValidMimeType`, `IsEmail`, and `IsPassword`. These methods now treat null or empty values as valid (optional fields) instead of invalid. To enforce required fields, chain with `IsNotNullOrEmpty` or `IsNullOrWhiteSpace`.

     ### Changed
     - Refactored `INotifications.AddNotifications` and `Notifier.AddNotifications` to accept `INotifications` interface instead of the concrete `Notifier` class, improving dependency inversion and testability.
     - Updated `ValidationRules.Join` to accept `params INotifications[]` instead of `Notifier[]`.
     - Updated `Notification.Key` property to be nullable (`string?`) to correctly reflect that notifications can exist without a key.

     ### Fixed
     - Fixed validation logic for several rules (Brazilian Documents, Credit Card, Phone, MimeType) to correctly handle empty/null values as valid (optional) unless explicitly validated as required.
     - Fixed potential `NullReferenceException` in `MaxLength` and `MinLength` string validations by adding null checks.
     - Fixed potential `ArgumentNullException` in `IsEmail` and `IsPassword` validations.
     - Fixed `IsCreditCardNotExpired` validation logic to correctly compare dates ignoring the time component.