public async Task <Result> SendToOneDeviceAsync(int userId, string title, string message, string endpoint, string groupKey)
{
var sub = _pushService.Get(userId, endpoint);
if (sub is null)
{
return(Result.Failure("Couldn't find device subscription"));
}
var notification = BuildMessage(title, message, _serverUrl, groupKey);
await _client.RequestPushMessageDeliveryAsync(sub, notification.ToPushMessage());
return(Result.Success());
}
