GO Websocket send all clients a message -

everything works fine code (shortened better reading).

when client1 sends request server, server responses him instantly. but, other clients can not see response message.

so want make go further: when client sends request server, server response clients clients can see message.

how can that? examples or nice tutorials beginners?

thanks in advance!

server:

import (         "github.com/gorilla/websocket"        )  func main() {     http.handle("/server", websocket.handler(echohandler))  }  func echohandler(ws *websocket.conn) {     conn, err := upgrader.upgrade(w, r, nil)      if err != nil {        return     }     {       messagetype, p, err := conn.readmessage()        if err != nil {         return       }        print_binary(p) // simple print of message        err = conn.writemessage(messagetype, p);       if err != nil {         return       }     } } 

you have use connection pool broadcast messages connections. can use tutorial/sample http://gary.burd.info/go-websocket-chat

simplifying:
connection pool collection of registered connections. see hub.connections:

type connection struct {     // websocket connection.     ws *websocket.conn      // buffered channel of outbound messages.     send chan []byte      // hub.     h *hub }  type hub struct {     // registered connections. that's connection pool     connections map[*connection]bool      ... } 

to broadcast message clients, iterate on connection pool this:

    case m := <-h.broadcast:         c := range h.connections {             select {             case c.send <- m:             default:                 delete(h.connections, c)                 close(c.send)             }         }     } 

h.broadcast in example channel messages need broadcast.
use default section of select statement delete connections full or blocked send channels. see what benefit of sending channel using select in go?