frontend/main.go

//Copyright 2017 Huawei Technologies Co., Ltd
//
//Licensed under the Apache License, Version 2.0 (the "License");
//you may not use this file except in compliance with the License.
//You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
//Unless required by applicable law or agreed to in writing, software
//distributed under the License is distributed on an "AS IS" BASIS,
//WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//See the License for the specific language governing permissions and
//limitations under the License.
package main

import (
	"flag"
	"fmt"
	"log"
	"net/http"
)

func main() {
	// command line flags
	port := flag.Int("port", 30101, "port to serve on")
	dir := flag.String("directory", "app/", "directory of web files")
	flag.Parse()

	// handle all requests by serving a file of the same name
	fs := http.Dir(*dir)
	fileHandler := http.FileServer(fs)
	http.Handle("/", fileHandler)

	log.Printf("Running on port %d\n", *port)

	addr := fmt.Sprintf("127.0.0.1:%d", *port)
	// this call blocks -- the progam runs here forever
	err := http.ListenAndServe(addr, nil)
	fmt.Println(err.Error())
}