go

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net ​

Network utilities.

Import ​

go
import netx "github.com/foomo/go/net"

API ​

FreePort ​

go
func FreePort() (string, error)

Returns a free port on localhost in address:port format. Useful for dynamically allocating ports in tests or local development.

Example ​

go
package main

import (
	"fmt"
	"log"

	netx "github.com/foomo/go/net"
)

func main() {
	addr, err := netx.FreePort()
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(addr) // e.g. "127.0.0.1:54321"
}