public async Task DownloadSummaryAsync()
{
if (Symbol == "")
{
throw new Exception("Stock symbol not provided.");
}
try
{
Summary = await EquitySummaryData.CreateAsync(Symbol);
}
catch
{
throw new Exception("Fatal error while downloading summary data.");
}
}
public static async Task <EquitySummaryData> CreateAsync(string symbol)
{
EquitySummaryData ToReturn = new EquitySummaryData();
ToReturn.QueriedSymbol = symbol.ToUpper().Trim();
//Get from yahoo finance
string url = "https://finance.yahoo.com/quote/" + symbol;
HttpClient cl = new HttpClient();
HttpResponseMessage hrm = await cl.GetAsync(url);
string web = await hrm.Content.ReadAsStringAsync();
//Test for invalid
if (web.ToLower().Contains(">Please check your spelling.".ToLower()))
{
throw new Exception("Stock '" + symbol + "' is not a valid stock symbol.");
}
int loc1;
int loc2;
List <string> splitter = new List <string>();
//The name and price were left outside of a try bracket intentionally.
//This should be the minimum amount of information that can be accessed. If you can't get this, fail.
//Get name and stock symbol
string name_and_stock_symbol = ToReturn.GetDataByClassName(web, "D(ib) Fz(18px)");
loc1 = name_and_stock_symbol.IndexOf("(");
ToReturn.Name = name_and_stock_symbol.Substring(0, loc1 - 1).Trim();
ToReturn.Name = ToReturn.Name.Replace("&", "&");
ToReturn.Name = ToReturn.Name.Replace("'", "'");
loc2 = name_and_stock_symbol.IndexOf(")", loc1 + 1);
ToReturn.StockSymbol = name_and_stock_symbol.Substring(loc1 + 1, loc2 - loc1 - 1);
//Get price
ToReturn.Price = System.Convert.ToSingle(ToReturn.GetDataByClassName(web, "Trsdu(0.3s) Fw(b) Fz(36px) Mb(-4px) D(ib)"));
//Get day change
try
{
loc1 = web.IndexOf("Trsdu(0.3s) Fw(500) Pstart(10px) Fz(24px)");
loc1 = web.IndexOf(">", loc1 + 1);
loc2 = web.IndexOf("<", loc1 + 1);
string dayc = web.Substring(loc1 + 1, loc2 - loc1 - 1);
splitter.Clear();
splitter.Add(" ");
string[] partsdc = dayc.Split(splitter.ToArray(), StringSplitOptions.None);
ToReturn.DollarChange = System.Convert.ToSingle(partsdc[0].Replace("+", ""));
ToReturn.PercentChange = System.Convert.ToSingle(partsdc[1].Replace("+", "").Replace("(", "").Replace(")", "").Replace("%", "").Trim()) / 100;
}
catch
{
ToReturn.DollarChange = 0;
ToReturn.PercentChange = 0;
}
//Get previous close
try
{
ToReturn.PreviousClose = System.Convert.ToSingle(ToReturn.GetDataByDataTestName(web, "PREV_CLOSE-value"));
}
catch
{
ToReturn.PreviousClose = 0;
}
//Get open
try
{
ToReturn.Open = System.Convert.ToSingle(ToReturn.GetDataByDataTestName(web, "OPEN-value"));
}
catch
{
ToReturn.Open = 0;
}
//Get bid information
try
{
loc1 = 0;
loc2 = 0;
loc1 = web.IndexOf("BID-value");
loc1 = web.IndexOf(">", loc1 + 1);
loc2 = web.IndexOf("<", loc1 + 1);
string bid_info = web.Substring(loc1 + 1, loc2 - loc1 - 1);
if (bid_info == "")
{
loc1 = web.IndexOf(">", loc2 + 1);
loc2 = web.IndexOf("<", loc1 + 1);
bid_info = web.Substring(loc1 + 1, loc2 - loc1 - 1);
}
splitter.Clear();
splitter.Add(" x ");
string[] parts = bid_info.Split(splitter.ToArray(), StringSplitOptions.None);
ToReturn.BidPrice = System.Convert.ToSingle(parts[0]);
ToReturn.BidQuantity = System.Convert.ToInt32(parts[1]);
}
catch
{
ToReturn.BidPrice = 0;
ToReturn.BidQuantity = 0;
}
//Get ask informmation
try
{
loc1 = 0;
loc2 = 0;
loc1 = web.IndexOf("ASK-value");
loc1 = web.IndexOf(">", loc1 + 1);
loc2 = web.IndexOf("<", loc1 + 1);
string ask_info = web.Substring(loc1 + 1, loc2 - loc1 - 1);
if (ask_info == "")
{
loc1 = web.IndexOf(">", loc2 + 1);
loc2 = web.IndexOf("<", loc1 + 1);
ask_info = web.Substring(loc1 + 1, loc2 - loc1 - 1);
}
splitter.Clear();
splitter.Add(" x ");
string[] parts2 = ask_info.Split(splitter.ToArray(), StringSplitOptions.None);
ToReturn.AskPrice = System.Convert.ToSingle(parts2[0]);
ToReturn.AskQuantity = System.Convert.ToInt32(parts2[1]);
}
catch
{
ToReturn.AskPrice = 0;
ToReturn.AskQuantity = 0;
}
//Get Day Range information
try
{
loc1 = web.IndexOf("DAYS_RANGE-value");
loc1 = web.IndexOf(">", loc1 + 1);
loc2 = web.IndexOf("<", loc1 + 1);
string day_range_info = web.Substring(loc1 + 1, loc2 - loc1 - 1);
day_range_info = day_range_info.Replace(" ", "");
splitter.Clear();
splitter.Add("-");
string[] parts3 = day_range_info.Split(splitter.ToArray(), StringSplitOptions.None);
ToReturn.DayRangeLow = System.Convert.ToSingle(parts3[0].Trim());
ToReturn.DayRangeHigh = System.Convert.ToSingle(parts3[1].Trim());
}
catch
{
ToReturn.DayRangeLow = 0;
ToReturn.DayRangeHigh = 0;
}
//Get Day Range information
try
{
loc1 = web.IndexOf("FIFTY_TWO_WK_RANGE-value");
loc1 = web.IndexOf(">", loc1 + 1);
loc2 = web.IndexOf("<", loc1 + 1);
string year_range_info = web.Substring(loc1 + 1, loc2 - loc1 - 1);
year_range_info = year_range_info.Replace(" ", "");
splitter.Clear();
splitter.Add("-");
string[] parts4 = year_range_info.Split(splitter.ToArray(), StringSplitOptions.None);
ToReturn.YearRangeLow = System.Convert.ToSingle(parts4[0].Trim());
ToReturn.YearRangeHigh = System.Convert.ToSingle(parts4[1].Trim());
}
catch
{
ToReturn.YearRangeLow = 0;
ToReturn.YearRangeHigh = 0;
}
//Get volume
try
{
ToReturn.Volume = System.Convert.ToInt32(ToReturn.GetDataByDataTestName(web, "TD_VOLUME-value").Replace(",", ""));
}
catch
{
ToReturn.Volume = 0;
}
//Get average volume
try
{
ToReturn.AverageVolume = System.Convert.ToInt32(ToReturn.GetDataByDataTestName(web, "AVERAGE_VOLUME_3MONTH-value").Replace(",", ""));
}
catch
{
ToReturn.AverageVolume = 0;
}
//Get market cap
try
{
string market_cap = ToReturn.GetDataByDataTestName(web, "MARKET_CAP-value");
string last_char = market_cap.Substring(market_cap.Length - 1, 1).ToLower();
float mcf = System.Convert.ToSingle(market_cap.Substring(0, market_cap.Length - 1));
if (last_char == "th")
{
ToReturn.MarketCap = System.Convert.ToDouble(mcf * 1000);
}
else if (last_char == "m")
{
ToReturn.MarketCap = System.Convert.ToDouble(mcf * 1000000);
}
else if (last_char == "b")
{
ToReturn.MarketCap = System.Convert.ToDouble(mcf * 1000000000);
}
else if (last_char == "t")
{
ToReturn.MarketCap = System.Convert.ToDouble(mcf * 1000000000000);
}
}
catch
{
ToReturn.MarketCap = 0;
}
//Get beta
try
{
ToReturn.Beta = System.Convert.ToSingle(ToReturn.GetDataByDataTestName(web, "BETA_5Y-value"));
}
catch
{
ToReturn.Beta = null;
}
//Get PE Ratio
try
{
ToReturn.PriceEarningsRatio = System.Convert.ToSingle(ToReturn.GetDataByDataTestName(web, "PE_RATIO-value"));
}
catch
{
ToReturn.PriceEarningsRatio = null;
}
//Get EPS ratio
try
{
ToReturn.EarningsPerShare = System.Convert.ToSingle(ToReturn.GetDataByDataTestName(web, "EPS_RATIO-value"));
}
catch
{
ToReturn.EarningsPerShare = 0;
}
//Get earnings date
try
{
ToReturn.EarningsDate = DateTime.Parse(ToReturn.GetDataByDataTestName(web, "EARNINGS_DATE-value"));
}
catch
{
ToReturn.EarningsDate = null;
}
//Get Forward Dividend Info
try
{
loc1 = web.IndexOf("DIVIDEND_AND_YIELD-value");
loc1 = web.IndexOf(">", loc1 + 1);
loc2 = web.IndexOf("<", loc1 + 1);
string dividendinfo = web.Substring(loc1 + 1, loc2 - loc1 - 1);
if (dividendinfo == "N/A (N/A)")
{
ToReturn.ForwardDividend = null;
ToReturn.ForwardDividendYield = null;
}
else
{
splitter.Clear();
splitter.Add(" ");
string[] partsfd = dividendinfo.Split(splitter.ToArray(), StringSplitOptions.None);
ToReturn.ForwardDividend = System.Convert.ToSingle(partsfd[0]);
ToReturn.ForwardDividendYield = System.Convert.ToSingle(partsfd[1].Replace("%", "").Replace("(", "").Replace(")", "")) / 100;
}
}
catch
{
ToReturn.ForwardDividend = 0;
ToReturn.ForwardDividendYield = 0;
}
//Get ex-dividend date
try
{
ToReturn.ExDividendDate = DateTime.Parse(ToReturn.GetDataByDataTestName(web, "EX_DIVIDEND_DATE-value"));
}
catch
{
ToReturn.ExDividendDate = null;
}
//Get one year targets
try
{
ToReturn.YearTargetEstimate = System.Convert.ToSingle(ToReturn.GetDataByDataTestName(web, "ONE_YEAR_TARGET_PRICE-value"));
}
catch
{
ToReturn.YearTargetEstimate = 0;
}
return(ToReturn);
}
private EquitySummaryData[] GetEquitySummariesFromWebData(string web_data)
{
int loc1 = 0;
int loc2 = 0;
List <string> Splitter = new List <string>();
loc1 = web_data.IndexOf("<tbody");
loc2 = web_data.IndexOf("</tbody>", loc1 + 1);
string table_data = web_data.Substring(loc1 + 1, loc2 - loc1 - 1);
//Split into rows
Splitter.Clear();
Splitter.Add("<tr class");
string[] rows = table_data.Split(Splitter.ToArray(), StringSplitOptions.None);
//Get all data
List <EquitySummaryData> ToReturn = new List <EquitySummaryData>();
int r = 0;
for (r = 1; r < rows.Length; r++)
{
EquitySummaryData esd = new EquitySummaryData();
Splitter.Clear();
Splitter.Add("<td ");
string[] cols = rows[r].Split(Splitter.ToArray(), StringSplitOptions.None);
//Get symbol
try
{
loc1 = cols[1].IndexOf("a href");
loc1 = cols[1].IndexOf(">", loc1 + 1);
loc2 = cols[1].IndexOf("<", loc1 + 1);
esd.StockSymbol = cols[1].Substring(loc1 + 1, loc2 - loc1 - 1);
}
catch
{
esd.StockSymbol = "?";
}
//Get name
try
{
loc1 = cols[2].IndexOf("react-text");
loc1 = cols[2].IndexOf(">", loc1 + 1);
loc2 = cols[2].IndexOf("<", loc1 + 1);
esd.Name = cols[2].Substring(loc1 + 1, loc2 - loc1 - 1);
esd.Name = esd.Name.Replace("'", "'");
esd.Name = esd.Name.Replace("&", "&");
}
catch
{
esd.Name = "";
}
//Get price
try
{
loc1 = cols[3].IndexOf("span class");
loc1 = cols[3].IndexOf(">", loc1 + 1);
loc2 = cols[3].IndexOf("<", loc1 + 1);
esd.Price = Convert.ToSingle(cols[3].Substring(loc1 + 1, loc2 - loc1 - 1));
}
catch
{
esd.Price = 0;
}
//Get dollar change
try
{
loc1 = cols[4].IndexOf("span class");
loc1 = cols[4].IndexOf(">", loc1 + 1);
loc2 = cols[4].IndexOf("<", loc1 + 1);
esd.DollarChange = Convert.ToSingle(cols[4].Substring(loc1 + 1, loc2 - loc1 - 1).Replace("+", ""));
}
catch
{
esd.DollarChange = 0;
}
//Get Percent Change
try
{
loc1 = cols[5].IndexOf("span class");
loc1 = cols[5].IndexOf(">", loc1 + 1);
loc2 = cols[5].IndexOf("<", loc1 + 1);
string PercentChange = cols[5].Substring(loc1 + 1, loc2 - loc1 - 1).Replace("+", "").Replace("%", "");
float percent_change_perc = Convert.ToSingle(PercentChange);
percent_change_perc = percent_change_perc / 100;
esd.PercentChange = percent_change_perc;
}
catch
{
esd.PercentChange = 0;
}
//Get volume
try
{
loc1 = cols[6].IndexOf("span class");
loc1 = cols[6].IndexOf(">", loc1 + 1);
loc2 = cols[6].IndexOf("<", loc1 + 1);
string vol = cols[6].Substring(loc1 + 1, loc2 - loc1 - 1);
esd.Volume = Convert.ToInt32(YahooFinanceToolkit.GetMarketCapFromString(vol));
}
catch
{
esd.Volume = 0;
}
//Get average volume
try
{
loc1 = cols[7].IndexOf("react-text");
loc1 = cols[7].IndexOf(">", loc1 + 1);
loc2 = cols[7].IndexOf("<", loc1 + 1);
string avgvol = cols[7].Substring(loc1 + 1, loc2 - loc1 - 1);
esd.AverageVolume = Convert.ToInt32(YahooFinanceToolkit.GetMarketCapFromString(avgvol));
}
catch
{
esd.AverageVolume = 0;
}
//Get market cap
try
{
loc1 = cols[8].IndexOf("span class");
loc1 = cols[8].IndexOf(">", loc1 + 1);
loc2 = cols[8].IndexOf("<", loc1 + 1);
string marcap = cols[8].Substring(loc1 + 1, loc2 - loc1 - 1);
esd.MarketCap = YahooFinanceToolkit.GetMarketCapFromString(marcap);
}
catch
{
esd.MarketCap = 0;
}
//Get price earnings ratio
try
{
loc1 = cols[9].IndexOf("react-text");
loc1 = cols[9].IndexOf(">", loc1 + 1);
loc2 = cols[9].IndexOf("<", loc1 + 1);
string pestr = cols[9].Substring(loc1 + 1, loc2 - loc1 - 1);
esd.PriceEarningsRatio = Convert.ToSingle(cols[9].Substring(loc1 + 1, loc2 - loc1 - 1));
}
catch
{
esd.PriceEarningsRatio = null;
}
ToReturn.Add(esd);
}
return(ToReturn.ToArray());
}