audio_stream_passthrough.go

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	http.HandleFunc("/radio", func(w http.ResponseWriter, r *http.Request) {
		resp, err := http.Get("http://prclive1.listenon.in:9960")
		if err != nil {
			fmt.Println(err)
		}
		defer resp.Body.Close()

		flusher, ok := w.(http.Flusher)
		if !ok {
			panic("expected http.ResponseWriter to be an http.Flusher")
		}

		w.Header().Set("Connection", "Keep-Alive")
		w.Header().Set("Access-Control-Allow-Origin", "*")
		w.Header().Set("X-Content-Type-Options", "nosniff")
		w.Header().Set("Transfer-Encoding", "chunked")
		w.Header().Set("Content-Type", "audio/mpeg")
		for true {
			io.Copy(w, resp.Body)
			flusher.Flush()
			return
		}
	})

	http.ListenAndServe(":8080", nil)
}