IBM/fp-go

Health v2 · maintenance only

Adoption not part of the score

2033 stars · 88 forks observed · 2026-10-17

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

IBM/fp-go is a functional programming library for Go 1.24+ inspired by fp-ts, providing monads like Option, Either, Result, IO, and Reader, plus optics such as Lens, Prism, and Traversal. It leverages generic type aliases to offer a clean, composable API for pure functions and side-effect isolation.

Use cases

• handle errors functionally in Go with Either and Result types
• isolate side effects using IO monads in Go code
• compose pure functions with pipe and monadic operations
• manipulate immutable data structures with lenses and prisms
• write testable Go code with functional patterns
• use Functor, Applicative, and Monad abstractions in Go

When to choose

• you want fp-ts-style functional programming idioms in Go
• your project uses Go 1.24+ and benefits from generics-based abstractions
• you need explicit error handling and side-effect isolation for maintainable, testable code

When to avoid

• your team prefers idiomatic imperative Go without functional abstractions
• you need a stable, non-breaking API - the library is marked work-in-progress with possible breaking changes
• your codebase targets Go versions earlier than 1.24

Facets

library · maturity active

error-handling concurrency developer-tools programming-languages developer-tools go cross-platform functional-programming monads optics fp-ts generics immutability do-notation algorithms

Member repositories

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