Go Handle File Upload

upload.go

package main

import (
	"fmt"
	"github.com/gorilla/mux"
	"io/ioutil"
	"log"
	"net/http"
)

func main() {
	r := mux.NewRouter()
	r.HandleFunc("/upload", Process())
	http.Handle("/", r)
	http.ListenAndServe(":3000", nil)
}

func Process() http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		file, header, err := r.FormFile("file")
		if err != nil {
			log.Printf("%s", err)
		}

		fmt.Printf("%s\n%+v\n", header.Filename, file)

		b, err := ioutil.ReadAll(file)
		if err != nil {
			log.Printf("%s", err)
		}

		ioutil.WriteFile(header.Filename, b, 0x777)
	}
}