public ActionResult <SuccessResponse> GetCoinInfoScraper()
{
ActionResult results = null;
var webClient = new WebClient();
var html = webClient.DownloadString("https://coinmarketcap.com/");
var parser = new HtmlParser();
var document = parser.ParseDocument(html);
var table = document.QuerySelector(".table");
var rows = table.QuerySelectorAll("tr").Skip(1);
foreach (var row in rows)
{
var coinInfoModel = new CoinInfoModel();
coinInfoModel.Name = row.QuerySelector("td:nth-child(2)").TextContent;
coinInfoModel.MarketCap = row.QuerySelector("td:nth-child(3)").TextContent;
coinInfoModel.Price = row.QuerySelector("td:nth-child(4)").TextContent;
coinInfoModel.Volume = row.QuerySelector("td:nth-child(5)").TextContent;
coinInfoModel.CirculatingSupply = row.QuerySelector("td:nth-child(6)").TextContent;
coinInfoModel.Change = row.QuerySelector("td:nth-child(7)").TextContent;
int addCoinInfo = _coinInfoScraperService.InsertCoinInfoScraper(coinInfoModel);
}
return(Ok(results));
}
public int InsertCoinInfoScraper(CoinInfoModel model)
{
int id = 0;
using (SqlConnection con = new SqlConnection(connString))
{
SqlCommand command = new SqlCommand("dbo.CoinInfoScraper_Insert", con);
command.CommandType = CommandType.StoredProcedure;
con.Open();
command.Parameters.Add(new SqlParameter("@Name", model.Name));
command.Parameters.Add(new SqlParameter("@MarketCap", model.MarketCap));
command.Parameters.Add(new SqlParameter("@Price", model.Price));
command.Parameters.Add(new SqlParameter("@Volume", model.Volume));
command.Parameters.Add(new SqlParameter("@CirculatingSupply", model.CirculatingSupply));
command.Parameters.Add(new SqlParameter("@Change", model.Change));
SqlParameter outputParameter = new SqlParameter();
outputParameter.ParameterName = "@Id";
outputParameter.SqlDbType = SqlDbType.Int;
outputParameter.Direction = ParameterDirection.Output;
command.Parameters.Add(outputParameter);
command.ExecuteNonQuery();
con.Close();
id = (int)outputParameter.Value;
}
return(id);
}
