public async Task<Room> UpdateRoomAsync(string roomId, UpdateRoomRequest request)
{
string url = _baseApiAddress + $"rooms/{roomId}";
#if __IOS__ || __ANDROID__ || NET45
var content = new StringContent(JsonConvert.SerializeObject(request));
#endif
#if NETFX_CORE
var content = new HttpStringContent(JsonConvert.SerializeObject(request));
#endif
return await HttpClient.PutAsync<Room>(url, content);
}