GitterSharp.Services.GitterApiService.MarkUnreadChatMessagesAsync C# (CSharp) Méthode

        public async Task MarkUnreadChatMessagesAsync(string userId, string roomId, IEnumerable<string> messageIds)
        {
            string url = _baseApiAddress + $"user/{userId}/rooms/{roomId}/unreadItems";

#if __IOS__ || __ANDROID__ || NET45
            var content = new StringContent("{\"chat\": " + JsonConvert.SerializeObject(messageIds) + "}",
                Encoding.UTF8,
                "application/json");
#endif
#if NETFX_CORE
            var content = new HttpStringContent("{\"chat\": " + JsonConvert.SerializeObject(messageIds) + "}",
                UnicodeEncoding.Utf8,
                "application/json");
#endif

            await HttpClient.PostAsync(url, content);
        }