How to upload file with go-json-rest

upload.go

package main

import (
	"io"
	"log"
	"net/http"
	"os"

	"github.com/ant0ine/go-json-rest/rest"
)

func main() {
	api := rest.NewApi()
	api.Use(append(rest.DefaultCommonStack, &rest.AccessLogApacheMiddleware{})...)
	router, _ := rest.MakeRouter(
		rest.Post("/upload", func(w rest.ResponseWriter, r *rest.Request) {
			// set maximum file size
			r.ParseMultipartForm(32 << 20)
			file, _, err := r.FormFile("file")
			if err != nil {
				log.Fatal(err)
			}
			// TODO: change it to open file > copy > close it
			io.Copy(os.Stdout, file)
		}),
	)
	api.SetApp(router)
	http.ListenAndServe(":9090", api.MakeHandler())
}