nicolito128/goetf

Go encoding module for ETF (External Term Format).

GoETF

Warning

The module is not yet at version 1.0.0 so it's not possible to ensure that there will be no breaking changes.

Go encoding module for ETF (External Term Format).

Why GoETF?

The external term format is mainly used in Erlang's distribution system. Occasionally, it's necessary to encode and decode this particular binary format for communication between different APIs. This format offers the advantage of being faster and more lightweight compared to traditional JSON.

Getting started

Requirements

• go v1.22+

Installation

go get -u github.com/nicolito128/goetf

Encoding example

package main

import (
	"fmt"

	"github.com/nicolito128/goetf"
)

func main() {
	phrase := "Hello, world!"

	data, err := goetf.Marshal(phrase)
	if err != nil {
		panic(err)
	}

	fmt.Println("Encoded:", data)
}

Decoding example

package main

import (
	"fmt"

	"github.com/nicolito128/goetf"
)

func main() {
	var out int

    bin := []byte{131, 98, 0, 0, 1, 1}
	if err := goetf.Unmarshal(bin, &out); err != nil {
		panic(err)
	}

	fmt.Println("Out:", out)
}

For both examples, use the go run command, like:

go run example_file.go

Examples

• Visit the examples folder for more sample codes.

References

• Erlang Runtime System Application (ERTS) - External Term Format