package main import ( "net/http" "github.com/julienschmidt/httprouter" "github.com/rs/cors" ) func Hello(w http.ResponseWriter, r *http.Request, _ httprouter.Params) { w.Header().Set("Content-Type", "application/json") w.Write([]byte("{\"hello\": \"world\"}")) } func main() { router := httprouter.New() router.GET("/", Hello) handler := cors.Default().Handler(router) http.ListenAndServe(":8080", handler) }