gistfile1.as

        public function generateUri(protocol:String = "ws"):String {
            var uri:String = protocol + "://" + host + "/spheres/" + apiKey + "/users/" + user;
            var params:Array = ['authToken=t'];

            if (sequenceId > 0) { params.push("sequenceId=" + sequenceId); }
            if (channels && channels.length > 0) { params.push("channels=" + channels.join(',')); }
            if (params.length > 0) {
                uri += "?";
                uri += params.join('&');
            }
            return uri;
        }