ADD: new example with gin-gonic web framework

Author: sshaplygin

example/main.go renamed to example/default-server/main.go

@@ -42,7 +42,7 @@ func main() {
 	defer server.Close()
 
 	http.Handle("/socket.io/", server)
-	http.Handle("/", http.FileServer(http.Dir("./asset")))
+	http.Handle("/", http.FileServer(http.Dir("../asset")))
 	log.Println("Serving at localhost:8000...")
 	log.Fatal(http.ListenAndServe(":8000", nil))
 }

example/gin-gonic/main.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+
+	socketio "github.com/googollee/go-socket.io"
+)
+
+func main() {
+	router := gin.New()
+	server, err := socketio.NewServer(nil)
+	if err != nil {
+		log.Fatal(err)
+	}
+	server.OnConnect("/", func(s socketio.Conn) error {
+		s.SetContext("")
+		fmt.Println("connected:", s.ID())
+		return nil
+	})
+	server.OnEvent("/", "notice", func(s socketio.Conn, msg string) {
+		fmt.Println("notice:", msg)
+		s.Emit("reply", "have "+msg)
+	})
+	server.OnEvent("/chat", "msg", func(s socketio.Conn, msg string) string {
+		s.SetContext(msg)
+		return "recv " + msg
+	})
+	server.OnEvent("/", "bye", func(s socketio.Conn) string {
+		last := s.Context().(string)
+		s.Emit("bye", last)
+		s.Close()
+		return last
+	})
+	server.OnError("/", func(e error) {
+		fmt.Println("meet error:", e)
+	})
+	server.OnDisconnect("/", func(s socketio.Conn, msg string) {
+		fmt.Println("closed", msg)
+	})
+
+	go server.Serve()
+	defer server.Close()
+
+	router.GET("/socket.io/*any", gin.WrapH(server))
+	router.POST("/socket.io/*any", gin.WrapH(server))
+	router.StaticFS("/", http.Dir("../asset"))
+
+	router.Run()
+}