[Go Snippet] マルチプレクサをざっくり - Qiita

package main import ( "fmt" "math/rand" "net/http" ) type MyServeMux struct { } // ServeHTTP を implement func (p *MyServeMux) ServeHTTP(w http.ResponseWriter, r *http.Request) { if r.URL.Path == "/" { fmt.Fprint(w, "hello, world!\n") return } if r.URL.Path == "/randomInt" { fmt.Fprintf(w, "Random number is: %d", rand.Int()) return } // TOP 以外のパスがきたら Not Found を返す http.NotFound(w, r) } func main()