func LocalIPv4s() ([]string, error) {
	var ips []string
	addrs, err := net.InterfaceAddrs()
	if err != nil {
		return ips, err
	}
	for _, a := range addrs {
		if ipnet, ok := a.(*net.IPNet); ok && !ipnet.IP.IsLoopback() && ipnet.IP.To4() != nil {
			ips = append(ips, ipnet.IP.String())
		}
	}
	return ips, nil
}
LocalIPs return all non-loopback IPv4 addresses
package ips
import (
	"net"
)