mirror of https://github.com/gorilla/websocket.git
59 lines
1.1 KiB
Go
59 lines
1.1 KiB
Go
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// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"flag"
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"log"
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"net/http"
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"github.com/gorilla/websocket"
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)
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var addr = flag.String("addr", "localhost:8081", "http service address")
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var upgrader = websocket.Upgrader{} // use default options
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func echo(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path != "/" {
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http.Error(w, "Not found", 404)
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return
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}
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if r.Method != "GET" {
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http.Error(w, "Method not allowed", 405)
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return
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}
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c, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Print("upgrade:", err)
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return
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}
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defer c.Close()
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for {
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mt, message, err := c.ReadMessage()
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if err != nil {
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log.Println("read:", err)
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break
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}
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log.Printf("recv: %s", message)
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err = c.WriteMessage(mt, message)
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if err != nil {
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log.Println("write:", err)
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break
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}
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}
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}
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func main() {
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flag.Parse()
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log.SetFlags(0)
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http.HandleFunc("/", echo)
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err := http.ListenAndServe(*addr, nil)
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if err != nil {
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log.Fatal("ListenAndServe: ", err)
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}
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}
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