Golang : How do I get the local IP (non-loopback) address ?
There are times we need to know the local machine IP address to send data packets to other services/server/clients and in this tutorial will show you how to get it done. The code below will find out the local machine IP non-loopback addresses.
package main
import (
"fmt"
"net"
"os"
)
func main() {
addrs, err := net.InterfaceAddrs()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
for _, address := range addrs {
// check the address type and if it is not a loopback the display it
if ipnet, ok := address.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
if ipnet.IP.To4() != nil {
fmt.Println(ipnet.IP.String())
}
}
}
}
You might be interested to read how to get client IP address tutorial as well.
By Adam Ng
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