golang gin and socketio

Question

How to use gin.Context.MustGet() in server:= socketio.NewServer(nil)

I used authorized to check the token and before into socketio handler.

authorized.GET("/socket.io", gin.WrapH(server))
authorized.POST("/socket.io", gin.WrapH(server))

I set some information for the client in authorized .

func AuthRequired(c *gin.Context) {
    ...
    c.Set("username", claims.Username) // parse from the token
    ...
}

I know I can do this to get the username from gin.Context

authorized.GET("/content", func(c *gin.Context) {
    fmt.Println(c.MustGet("username"))
    ...
})

Is there any way to get the username from the server? Or how to pass the variable into here?

server.OnEvent("/", "chat", func(s socketio.Conn, msg string) string {
    fmt.Println("chat: ", msg)
    s.Emit("response", msg)
    return "recv " + msg
})

Although there is s.RemoteHeader() that I can get the token and parse it, it is repeated to parse it again.

Answer 1

you should add username from AuthRequired like below:

c.Request.Header.Set("username", claims.Username)

and then use it in server.OnEvent function like below:

s.RemoteHeader().Get("username")