fx

Modular effectful computations with explicit environments and errors

Stackage Nightly 2026-04-25:	0.11.2
Latest on Hackage:	0.11.2

See all snapshots fx appears in

MIT licensed and maintained by Nikita Volkov

This version can be pinned in stack with:fx-0.11.2@sha256:5b1f31a97e1a3e48507fb01b40ca4568313cd65fcd9f106489353d26531b4220,2530

Module documentation for 0.11.2

Depends on 6 packages(full list with versions):

base, monad-parallel, mtl, stm, text, transformers

A lightweight library for writing effectful computations with explicit environment dependencies and error handling. Provides value-based abstractions for effects without deep monad transformer stacks.

Key features: explicit env/err types, composable and safe resource management and concurrency, and compatibility with Ports and Adapters architecture.