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Version: v1.x (legacy)

Installation

Requirements​

fp-go v1 requires Go 1.18 or later for generics support.

Install​

To install fp-go v1, use the following command:

go get github.com/IBM/fp-go

This will download and install version 1 of fp-go into your Go module.

Verify Installation​

After installation, you can verify it's working by importing it in your Go code:

package main

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

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

Upgrading to v2​

If you want to use the latest features and improvements, consider upgrading to v2 which requires Go 1.24+.

Next Steps​

Now that you have fp-go installed, check out the Option documentation to learn about one of the core data types.