DarkPeak.Functional 1.7.0

There is a newer version of this package available.
See the version list below for details.
dotnet add package DarkPeak.Functional --version 1.7.0
                    
NuGet\Install-Package DarkPeak.Functional -Version 1.7.0
                    
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="DarkPeak.Functional" Version="1.7.0" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="DarkPeak.Functional" Version="1.7.0" />
                    
Directory.Packages.props
<PackageReference Include="DarkPeak.Functional" />
                    
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 DarkPeak.Functional --version 1.7.0
                    
#r "nuget: DarkPeak.Functional, 1.7.0"
                    
#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 DarkPeak.Functional@1.7.0
                    
#: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=DarkPeak.Functional&version=1.7.0
                    
Install as a Cake Addin
#tool nuget:?package=DarkPeak.Functional&version=1.7.0
                    
Install as a Cake Tool

DarkPeak.Functional

NuGet NuGet Downloads

A functional programming library for .NET providing monadic types and railway-oriented programming patterns.

Features

  • Option<T> — Type-safe alternative to null
  • Result<T, TError> — Railway-oriented error handling
  • Either<TLeft, TRight> — Symmetric dual-value type
  • Validation<T, TError> — Error accumulation
  • Retry — Configurable retry policies with backoff strategies
  • Memoize — Function caching with TTL, LRU, and distributed cache support

All types support Map, Bind, Match, LINQ query syntax, and async variants.

Quick Start

using DarkPeak.Functional;

var result = Option.Some("42")
    .Bind(s => Option.TryParse<int>(s))
    .Map(x => x * 2)
    .Match(
        some: x => $"Result: {x}",
        none: () => "No value");
// "Result: 84"

Building

dotnet build
dotnet test
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.
  • net10.0

    • No dependencies.

NuGet packages (7)

Showing the top 5 NuGet packages that depend on DarkPeak.Functional:

Package Downloads
DarkPeak.Functional.Http

Functional HTTP client extensions for .NET. Wraps HttpClient operations in Result<T, Error> for type-safe, exception-free HTTP communication using railway-oriented programming.

DarkPeak.Functional.AspNet

ASP.NET integration for DarkPeak.Functional. Provides extensions to convert Result<T, Error> to IResult and ProblemDetails for idiomatic minimal API error handling.

DarkPeak.Functional.Dapper

Functional Dapper extensions for DarkPeak.Functional. Wraps Dapper query and execute methods in Result types with typed database error mapping and functional transaction support.

DarkPeak.Functional.EntityFramework

Functional Entity Framework Core extensions for DarkPeak.Functional. Wraps DbContext query and save methods in Result types with typed error mapping and functional transaction support.

DarkPeak.Functional.Redis

Redis distributed cache provider for DarkPeak.Functional. Implements ICacheProvider using StackExchange.Redis for use with Memoize and MemoizeResult.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.16.4 186 3/14/2026
1.14.1 153 3/13/2026
1.13.1 151 2/15/2026
1.12.0 147 2/15/2026
1.10.1 154 2/15/2026
1.8.0 121 2/15/2026
1.7.0 134 2/15/2026
1.6.20-PullRequest11.3 44 2/14/2026
1.6.18 101 2/14/2026
1.6.17 99 2/14/2026
1.6.17-PullRequest10.0 45 2/14/2026
1.6.16-PullRequest9.0 49 2/14/2026
1.6.15 112 2/14/2026
1.6.15-PullRequest8.3 45 2/14/2026
1.6.14 107 2/14/2026
1.6.13 109 2/14/2026
1.6.12-PullRequest7.7 41 2/14/2026
1.6.12-PullRequest7.0 42 2/14/2026
1.6.10 112 2/14/2026
1.6.5-PullRequest1.0 47 2/14/2026