# SSDP library [![GoDoc](https://godoc.org/github.com/koron/go-ssdp?status.svg)](https://godoc.org/github.com/koron/go-ssdp) [![CircleCI](https://img.shields.io/circleci/project/github/koron/go-ssdp/master.svg)](https://circleci.com/gh/koron/go-ssdp/tree/master) [![Go Report Card](https://goreportcard.com/badge/github.com/koron/go-ssdp)](https://goreportcard.com/report/github.com/koron/go-ssdp) Based on . ## Examples There are tiny snippets for example. See also examples/ directory for working examples. ### Respond to search ```go import "github.com/koron/go-ssdp" ad, err := ssdp.Advertise( "my:device", // send as "ST" "unique:id", // send as "USN" "http://192.168.0.1:57086/foo.xml", // send as "LOCATION" "go-ssdp sample", // send as "SERVER" 1800) // send as "maxAge" in "CACHE-CONTROL" if err != nil { panic(err) } // run Advertiser infinitely. quit := make(chan bool) <-quit ``` ### Send alive periodically ```go import "time" aliveTick := time.Tick(300 * time.Second) for { select { case <-aliveTick: ad.Alive() } } ``` ### Send bye when quiting ```go import ( "os" "os/signal" ) // to detect CTRL-C is pressed. quit := make(chan os.Signal, 1) signal.Notify(quit, os.Interrupt) loop: for { select { case <-aliveTick: ad.Alive() case <-quit: break loop } } // send/multicast "byebye" message. ad.Bye() // teminate Advertiser. ad.Close() ``` ### Limitate interfaces to multicast go-ssdp will send multicast messages to all IPv4 interfaces as default. When you want to limitate interfaces, see below snippet. ```go import ( "github.com/koron/go-ssdp" "net" ) en0, err := net.InterfaceByName("en0") if err != nil { panic(err) } ssdp.Interfaces = []net.Interface{*en0} ``` go-ssdp will send multicast message only "en0" after this.