golang 改写 node

package main

import (
    "net/Http"
    "GitHub.com/gin-gonic/gin"
)

func main() {
    router := gin.Default()

    router.GET("/", func(c *gin.Context) {
        c.String(http.StatusOK, "Hello, World!")
    })

    router.Run(":8080")
}

package main

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

    "github.com/gorilla/websocket"
)

var upgrader = websocket.Upgrader{
    CheckOrigin: func(r *http.Request) bool {
        return true
    },
}

func main() {
    http.HandleFunc("/echo", echoHandler)
    log.Fatal(http.ListenAndServe(":8080", nil))
}

func echoHandler(w http.ResponseWriter, r *http.Request) {
    conn, err := upgrader.Upgrade(w, r, nil)
    if err != nil {
        fmt.Println("upgrade:", err)
        return
    }
    defer conn.Close()

    for {
        messageType, message, err := conn.ReadMessage()
        if err != nil {
            fmt.Println("read:", err)
            break
        }
        fmt.Printf("recv: %s
", message)
        err = conn.WriteMessage(messageType, message)
        if err != nil {
            fmt.Println("write:", err)
            break
        }
    }
}