endian

Detect byte order library (BigEndian or LittleEndian)

Get bytes order

package main

import (
    "fmt"

    "github.com/wmentor/endian"
)

func main() {
    order := endian.GetOrder()

    if order == endian.BigEndian {
        fmt.Println("Big Endian")
    } else {
        fmt.Println("Little Endian")
    }
}

Insted of endian.BigEndian you can use endian.LittleEndian constant.