public static async Task <GoldRate> GetRates()
{
if (DateTime.Now.Subtract(lastUpdated).Days <= 1 && goldRate != null)
{
return(goldRate);
}
Stream stream = await(await new HttpClient().GetAsync("http://www.goldrate24.com/")).Content.ReadAsStreamAsync();
HtmlDocument htmlDocument = new HtmlDocument();
htmlDocument.Load(stream);
try
{
var nodes = htmlDocument.DocumentNode.SelectNodes("//table[contains(@class, 'now table table-striped table-hover table-bordered table-light')]");
goldRate = new GoldRate();
goldRate.Carat24 = nodes[0].SelectNodes("//th[contains(text(), ' Gold Gram 24K')]")[0].NextSibling.InnerHtml;
goldRate.Carat22 = nodes[0].SelectNodes("//th[contains(text(), ' Gold Gram 22K')]")[0].NextSibling.InnerHtml;
lastUpdated = DateTime.Now;
}
catch (Exception ex)
{
throw ex;
}
return(goldRate);
}
// Send Activity to channels
private async Task SendActivity(ITurnContext turnContext, string message)
{
Activity activity = turnContext.Activity.CreateReply();
// Fetching the gold rates
GoldRate result = GoldRatesParser.GetRates().Result;
// Messages based upon the entity's value
if (string.IsNullOrEmpty(message))
{
activity.Text = string.Format(Messages.GetRateMessages(), result.Carat24, result.Carat22);
}
else if (message == "22")
{
activity.Text = string.Format(Messages.GetRateCaratMessages(), message, result.Carat22);
}
else
{
activity.Text = string.Format(Messages.GetRateCaratMessages(), message, result.Carat24);
}
// Platform specific cards (Google)
if (turnContext.Activity.ChannelId == "google")
{
var card = new GoogleBasicCard()
{
Content = new GoogleBasicCardContent()
{
Title = "Today's gold rate",
Subtitle = "Keeping you up to date about the gold rates on daily basis.",
FormattedText = activity.Text,
Display = ImageDisplayOptions.DEFAULT,
Image = new Image()
{
Url = "https://images-na.ssl-images-amazon.com/images/I/71lpB+tqfgL._SL210_QL95_BG0,0,0,0_FMpng_.png"
},
},
};
turnContext.GoogleSetCard(card);
}
// Platform specific cards (Alexa)
if (turnContext.Activity.ChannelId == "alexa")
{
turnContext.AlexaSetCard(new AlexaCard()
{
Type = AlexaCardType.Simple,
Title = "Today's gold rate",
Content = activity.Text
});
}
// Adaptive Cards can also be written here to support other OOTB channels
await turnContext.SendActivityAsync(activity);
}
