Twitch api update, can't get ChannelId anymore?

        public static int GetTwitchUserInfo_Helix(
                                     string channelName, //or user name
                                     ref TwitchUserInfo userInfo)
        {
            if (!string.IsNullOrEmpty(channelName) && !string.IsNullOrWhiteSpace(channelName))
            {
                string req = "https://api.twitch.tv/helix/users?login=" + channelName);
                int res = HttpsGet(req, out string buf);
                if (res == 200)
                {
                    JObject json = JObject.Parse(buf);
                    JObject j = json.Value<JArray>("data").Value<JObject>(0);
                    userInfo.DisplayName = j.Value<string>("display_name");
                    userInfo.ID = j.Value<string>("id");
                } 
                return res;
            }
            else
            {
                return 400;
            }
        }

The channel ID and the user ID is the same thing