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Version: v2.2.82 (latest)
Getting started · Section 02 / 02

Install fp-go.

One go get and you're ready. v2 is the active line; v1 remains supported for Go 1.18–1.23.

// Go required
1.24+v2
v1 still supports Go 1.18+.
// Install command
go get github.com/IBM/fp-go/v2@latest
// Versioning
Follows SemVer.
01

Requirements

Difficulty · Beginner
Go version.

fp-go v2 requires Go 1.24 or later for the latest generics features and improvements.

02

Install fp-go.

Latest version (v2.2.82)​

shelltested
go get github.com/IBM/fp-go/v2@latest

Pin a specific version​

shelltested
go get github.com/IBM/fp-go/v2@v2.2.82

The library follows semantic versioning.

Check the installed version​

shell
go list -m github.com/IBM/fp-go/v2
03

Verify the install.

main.gotested
package main

import (
  "fmt"
  "github.com/IBM/fp-go/v2/option"
)

func main() {
  some := option.Some(42)
  fmt.Println(option.IsSome(some)) // true
}
You're set.

Next, head to the quickstart to build your first fp-go program, or jump to Option to learn a core data type.