gin and socket.io

main.go

package main

/*
Like Snoops Gin and Juice, but gin and socket.io...
https://github.com/gin-gonic/gin/issues/124
*/

var Socketio_Server * socketio.Server

func main() {
    var router_engine = gin.Default ()
    var err error

    Socketio_Server, err    = socketio.NewServer(nil)
    if  err != nil  {
        panic ( err )
    }

    router_engine.GET ( "/", IndexHandler )
    router_engine.Static ( "/public", "./public" )

    router_engine.GET ( "/socket.io", socketHandler )
    router_engine.POST ( "/socket.io", socketHandler )
    router_engine.Handle ( "WS", "/socket.io", [] gin.HandlerFunc { socketHandler } )
    router_engine.Handle ( "WSS", "/socket.io", [] gin.HandlerFunc { socketHandler } )

    router_engine.Run(":8000")
}

func socketHandler ( c  * gin.Context ) {
    Socketio_Server.On("connection", func(so socketio.Socket) {
        fmt.Println("on connection")

        so.Join("chat")

        so.On("chat message", func(msg string) {
            fmt.Println("emit:", so.Emit("chat message", msg))
            so.BroadcastTo("chat", "chat message", msg)
        })
        so.On("disconnection", func() {
            fmt.Println("on disconnect")
        })
    })

    Socketio_Server.On ( "error", func( so socketio.Socket, err error) {
        fmt.Printf ( "[ WebSocket ] Error : %v", err.Error () )
    })

    Socketio_Server.ServeHTTP ( c.Writer, c.Request )
}

I am getting the following error, did the Gin API change? I have spent way too long messing with this snippet trying to figure out what is going on. Any ideas?

./main.go:32: cannot use []gin.HandlerFunc literal (type []gin.HandlerFunc) as type gin.HandlerFunc in argument to r.RouterGroup.Handle
./main.go:33: cannot use []gin.HandlerFunc literal (type []gin.HandlerFunc) as type gin.HandlerFunc in argument to r.RouterGroup.Handle

same here

just replace []gin.HandlerFunc with gin.WrapF(socketHandler)

gin-gonic/gin#293