golang-samber-mo

Using the Option monad handles nullable JSON or database fields safely in Go by providing a type-safe wrapper for values that may or may not exist, replacing nil checks with explicit present or absent states in your data models.

The best way to chain error handling across multiple steps in Go is using the Result monad with Do notation, enabling rail-roaded data transformations that short-circuit pipelines on failure and propagate errors automatically across components.

Representing discriminated unions with multiple variants in Go is done using the Either monad alongside multi-variant Either3 and Either4 types, allowing pipelines to safely branch and transform values across distinct type paths.

You can use Go generics to build composable functional pipelines because the API surface is fully generics-based, offering type-changing maps and cross-type transformation helpers across sub-packages for robust data flows.

No external dependencies are required to use monadic patterns in Go, as the Skill provides self-contained Option, Result, and Either abstractions with pipeline helpers that satisfy a Go-generics based API surface directly.

Avoid using monads for error handling in Go pipelines when a simple if-err check suffices, as introducing Option, Result, or Either abstractions in trivial flows may add unnecessary structural complexity without functional benefit.