[INFO] How to integrate with Echo framework

Hi @kataras, I started to use neffos nearly weak ago and i really like it, where i work we decide to move into real time aplication, and i searched for a good socket package, i already used iris and i really like how it works, i was working with websockets of iris and when i updated iris i see some errors (i was in trubles before because updates of other libraries we use), then i read the documentation and i've changed all.

I also integrate the sockets with echo framework and i wold like to leave here how i made it for anyone who need it and also i think it will be good for this greate library if they have examples of implementatios with other to.

Then here is the code:

package main

import (
	"github.com/labstack/echo"
        "github.com/kataras/neffos"
	"github.com/kataras/neffos/gorilla"
	"github.com/labstack/echo"
)

type serverConn struct {
	*neffos.NSConn
}

func main() {
        router := echo.New()

        controller := new(serverConn)
        events := neffos.NewStruct(controller).
		SetNamespace("default").
		SetEventMatcher(neffos.EventTrimPrefixMatcher("On"))

        websocketServer := neffos.New(
		gorilla.DefaultUpgrader, /* DefaultGobwasUpgrader can be used too. */
		events)

       // Wrap the web socket handler with echo function to be compatible, both use http library to work
       router.Any("/echo", echo.WrapHandler(websocketServer), deleteOrigin)

        if err := router.Start(":8080"); err != nil {
		log.Fatalf("error in ListenAndServe: %s", err)
	}
}

// deleteOrigin allows others origins than local access to sockets
// if we avoid this handler then we can't connect from servers in other ports or routes
// NOTE: This isn't the best way to do it, but i can't found another way to do it.
func deleteOrigin(next echo.HandlerFunc) echo.HandlerFunc {
	return func(c echo.Context) error {
		c.Request().Header.Del("Origin")
		return next(c)
	}
}

func (c *serverConn) OnNamespaceConnected(msg neffos.Message) error {
	log.Printf("[%s] connected to namespace [%s]",
		c.Conn, msg.Namespace)
	return nil
}

func (c *serverConn) OnNamespaceDisconnect(msg neffos.Message) error {
	log.Printf("[%s] disconnected from namespace [%s]", c.Conn, msg.Namespace)
	return nil
}

func (c *serverConn) OnChat(msg neffos.Message) error {
	log.Printf("[%s] sent: %s", c.Conn, string(msg.Body))
	c.Conn.Server().Broadcast(c.Conn, msg)
	return nil
}

This is only for the server file, if anyone want to test it use with the files in the route: _examples/basic/browser

One las thing: I don't know how to acces to the context of the request.