Make your functions return something meaningful, typed, and safe!

NOT MAINTAINED - A simple Rust like Result type for Python 3. Fully type annotated.

Functional programming for Python

An opinionated F# Library for error handling

A framework for pluggable business logic components

🚊 Railway-oriented library to easily model and handle success/failure for Kotlin Multiplatform.

Monacs - Collection of basic monads and functional extensions for C#

Option, Result and Choice types for C# to simplify functional programming.

Unleash a pragmatic and observable use of Result Pattern and Railway-Oriented Programming in Ruby.

Railway Oriented Programming in C#

Result, Either, Try, and Maybe monadic types for Java

A library for making domain operations in Elixir

The fastest functional programming library for Unity – the easiest and quickest way to handle exceptions and null values.

Data structures, validation, coercion and processing toolkit for Ruby

C# Zero Allocation Functional programming for Unity powered by monad pipelines.

.NET functional programming and other utilities

A wrapper over `dry-monads` to solve its flaws and offer a safe way to implement the Railway pattern.

Minimal Railway Oriented Programming for Go

Funicular-Switch is a lightweight C# port of F#'s result and option types to support 'railway oriented' programming patterns. Focus on the happy path, without loosing error information.

A Result type for the Java programming language.

Functional programming utilities and Roslyn components for writing expressive C#

CoreEx provides enriched capabilities for building business services by extending the core capabilities of .NET.

Railway oriented programming in Ember

Robust And Fast Functional IO Toolkit

Railway oriented programming in Python

Twitter Clone in F# - Official GitHub Repository of the Book F# Applied II

Functional Programming Framework and sample code

ROP flavoured Result & AsyncResult types

Experimenting with Railway oriented programming and Python

Elmish architecture in Typescript