diff --git a/main.go b/main.go
index 3b6ac99..65b2f0e 100644
--- a/main.go
+++ b/main.go
@@ -30,9 +30,50 @@ GoVersion: %s
 
 `
 	bannerBase64 = "DQogX19fXyAgX19fXyAgICBfX18gIF9fX19fIA0KKCAgXyBcKCAgXyBcICAvIF9fKSggIF8gICkNCiApKF8pICkpKF8pICkoIChfLS4gKShfKSggDQooX19fXy8oX19fXy8gIFxfX18vKF9fX19fKQ0K"
+
+	opts struct {
+		Addr       string `short:"a" long:"addr" default:"0.0.0.0:10141" env:"ADDR" description:"Addr to listen on for HTTP server"`
+		WebHookUrl string `short:"u" long:"webhook-url" env:"URL" description:"Webhook url of dingding" required:"true"`
+		Version    bool   `short:"v" long:"version" description:"Show version info"`
+	}
 )
 
 func init() {
+	initLog()
+}
+
+func main() {
+	parseArg()
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", requestHandle)
+
+	server := &http.Server{
+		Addr:    ":4000",
+		Handler: mux,
+	}
+
+	quit := make(chan os.Signal)
+	signal.Notify(quit, os.Interrupt)
+	go func() {
+		<-quit
+
+		if err := server.Shutdown(context.Background()); err != nil {
+			log.Fatal("Shutdown server:", err)
+		}
+	}()
+
+	log.Info("Starting HTTP server on http://%s", opts.Addr)
+	if err := server.ListenAndServe(); err != nil {
+		if err == http.ErrServerClosed {
+			log.Info("Server closed under request")
+		} else {
+			log.Fatal("Server closed unexpected")
+		}
+	}
+}
+
+func initLog() {
 	err := log.NewConsole()
 	if err != nil {
 		panic("unable to create new logger: " + err.Error())
@@ -51,10 +92,39 @@ func init() {
 	}
 }
 
-var opts struct {
-	Addr       string `short:"a" long:"addr" default:"0.0.0.0:10141" env:"ADDR" description:"Addr to listen on for HTTP server"`
-	WebHookUrl string `short:"u" long:"webhook-url" env:"URL" description:"Webhook url of dingding" required:"true"`
-	Version    bool   `short:"v" long:"version" description:"Show version info"`
+func parseArg() {
+	if _, err := flags.NewParser(&opts, flags.Default).Parse(); err != nil {
+		if opts.Version {
+			printVersion()
+			os.Exit(0)
+		}
+		if flagsErr, ok := err.(*flags.Error); ok && flagsErr.Type == flags.ErrHelp {
+			os.Exit(0)
+		} else {
+			os.Exit(1)
+		}
+	}
+}
+
+func requestHandle(w http.ResponseWriter, r *http.Request) {
+	err := r.ParseForm()
+	if err != nil {
+		log.Error("parse request form %+v",
+			err)
+		_, _ = io.WriteString(w,
+			fmt.Sprintf("parse request form %+v", err))
+		return
+	}
+
+	content := r.Form.Get("content")
+	if content == "" {
+		log.Error("read content from request form nil")
+		_, _ = io.WriteString(w, "read content from request form nil")
+		return
+	}
+	info := dingToInfo(content)
+
+	_, _ = w.Write(info)
 }
 
 func dingToInfo(msg string) []byte {
@@ -88,74 +158,8 @@ func dingToInfo(msg string) []byte {
 	return body
 }
 
-func send(w http.ResponseWriter, r *http.Request) {
-	err := r.ParseForm()
-	if err != nil {
-		log.Error("parse request form %+v",
-			err)
-		_, _ = io.WriteString(w,
-			fmt.Sprintf("parse request form %+v", err))
-		return
-	}
-
-	content := r.Form.Get("content")
-	if content == "" {
-		log.Error("read content from request form nil")
-		_, _ = io.WriteString(w, "read content from request form nil")
-		return
-	}
-	info := dingToInfo(content)
-
-	_, _ = w.Write(info)
-}
-
 // printVersion Print out version information
 func printVersion() {
 	banner, _ := base64.StdEncoding.DecodeString(bannerBase64)
 	fmt.Printf(versionTpl, banner, Version, BuildTime, GitCommit, GoVersion)
 }
-
-func parseArg() {
-	if _, err := flags.NewParser(&opts, flags.Default).Parse(); err != nil {
-		if opts.Version {
-			printVersion()
-			os.Exit(0)
-		}
-		if flagsErr, ok := err.(*flags.Error); ok && flagsErr.Type == flags.ErrHelp {
-			os.Exit(0)
-		} else {
-			os.Exit(1)
-		}
-	}
-}
-
-func main() {
-	parseArg()
-
-	mux := http.NewServeMux()
-	mux.HandleFunc("/", send)
-
-	server := &http.Server{
-		Addr:    ":4000",
-		Handler: mux,
-	}
-
-	quit := make(chan os.Signal)
-	signal.Notify(quit, os.Interrupt)
-	go func() {
-		<-quit
-
-		if err := server.Shutdown(context.Background()); err != nil {
-			log.Fatal("Shutdown server:", err)
-		}
-	}()
-
-	log.Info("Starting HTTP server on http://%s", opts.Addr)
-	if err := server.ListenAndServe(); err != nil {
-		if err == http.ErrServerClosed {
-			log.Info("Server closed under request")
-		} else {
-			log.Fatal("Server closed unexpected")
-		}
-	}
-}