func vkvWatchKeyHandler(vkvhub *hub.Hub) func(http.ResponseWriter, *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
defer func() {
log.Printf("WATCH CLOSE")
}()
conn, _ := sse.Upgrade(w, r)
notify := w.(http.CloseNotifier).CloseNotify()
stream := vkvhub.Sub(vars["key"])
L:
for {
select {
case <-notify:
log.Printf("Close")
vkvhub.Unsub(vars["key"], stream)
break L
case m := <-stream:
conn.WriteString(m)
}
}
}
}
