public static List <StockSummary> GetStockHistoryFromQuandl(string symbol, DateTime startDate, DateTime endDate, string interval)
{
List <StockSummary> list = new List <StockSummary>();
var fmt = "https://www.quandl.com/api/v3/datasets/WIKI/{0}.csv?auth_token={1}&start_date={2}&end_date={3}";
// 0: stock symbol
// auth_token 1: token
// start_date 2: date yyyy-MM-dd
// auth_token 3: date yyyy-MM-dd
var token = "n5zwD2oCokRjh96x_yxV";
var url = string.Format(fmt, symbol, token, startDate.ToString("yyyy-MM-dd"), endDate.ToString("yyyy-MM-dd"));
// get content
var sb = new StringBuilder();
var wc = new WebClient();
IWebProxy defaultProxy = WebRequest.DefaultWebProxy;
if (defaultProxy != null)
{
defaultProxy.Credentials = CredentialCache.DefaultCredentials;
wc.Proxy = defaultProxy;
}
using (var sr = new StreamReader(wc.OpenRead(url)))
{
// skip headers
sr.ReadLine();
int i = 0;
// read each line
for (var line = sr.ReadLine(); line != null; line = sr.ReadLine())
{
var items = line.Split(',');
var stock = new StockDetails();
stock.Open = float.Parse(items[1], CultureInfo.InvariantCulture);
stock.Close = float.Parse(items[4], CultureInfo.InvariantCulture);
stock.DayHigh = float.Parse(items[2], CultureInfo.InvariantCulture);
stock.DayLow = float.Parse(items[3], CultureInfo.InvariantCulture);
stock.Volume = double.Parse(items[5], CultureInfo.InvariantCulture);
stock.Valid = true;
stock.Symbol = symbol;
stock.DateString = DateTime.Parse(items[0], CultureInfo.InvariantCulture).ToString(@"MM'/'dd'/'yyyy");
list.Add(stock);
}
}
return(list);
}
public static StockSummary GetStockFromBarchart(string symbol)
{
StockDetails stock = new StockDetails();
var fmt = "https://marketdata.websol.barchart.com/getQuote.csv?apikey={0}&symbols={1}&fields={2}&mode=I&jerq=false";
var token = "a12e94cc748160856f9039fcc6f6177b";
var fields = "fiftyTwoWkHigh,fiftyTwoWkLow,settlement,previousSettlement,ask,askSize,bid,bidSize,avgVolume";
// api key 0: the api key from https://www.barchart.com/ondemand
// symbols 1:A symbol or code that identifies a financial instrument. Multiple symbols separated by a comma may be used.
// fields 2: the fields requested
var url = string.Format(fmt, token, symbol, fields);
// get content
var sb = new StringBuilder();
var wc = new WebClient();
IWebProxy defaultProxy = WebRequest.DefaultWebProxy;
if (defaultProxy != null)
{
defaultProxy.Credentials = CredentialCache.DefaultCredentials;
wc.Proxy = defaultProxy;
}
using (var sr = new StreamReader(wc.OpenRead(url)))
{
// skip headers
var header = sr.ReadLine();
var headers = new List <string>(header.Split(','));
var line = sr.ReadLine();
if (line == null)
{
stock.Valid = false;
}
else
{
var items = line.Split(',').Select(item => item.Trim('"')).ToArray();
stock.Open = ParseFloat(items[headers.IndexOf("open")]);
stock.Close = ParseFloat(items[headers.IndexOf("close")]);
stock.DayHigh = ParseFloat(items[headers.IndexOf("high")]);
stock.DayLow = ParseFloat(items[headers.IndexOf("low")]);
stock.YearHigh = ParseFloat(items[headers.IndexOf("fiftyTwoWkHigh")]); // as requested
stock.YearLow = ParseFloat(items[headers.IndexOf("fiftyTwoWkLow")]); // as requested
stock.Volume = ParseDouble(items[headers.IndexOf("volume")]);
//stock.PreviousVolume = ParseDouble(items[headers.IndexOf("previousVolume")]);
stock.Settlement = ParseDouble(items[headers.IndexOf("settlement")]); // as requested
stock.PreviousSettlement = ParseDouble(items[headers.IndexOf("previousSettlement")]); // as requested
stock.Symbol = items[headers.IndexOf("symbol")];
stock.Name = items[headers.IndexOf("name")];
stock.Change = ParseFloat(items[headers.IndexOf("netChange")]);
stock.ChangePercent = items[headers.IndexOf("percentChange")];
stock.Ask = ParseFloat(items[headers.IndexOf("ask")]); // as requested
stock.Bid = ParseFloat(items[headers.IndexOf("bid")]); // as requested
stock.AskSize = ParseInt(items[headers.IndexOf("askSize")]); // as requested
stock.BidSize = ParseInt(items[headers.IndexOf("bidSize")]); // as requested
stock.AverageDailyVolume = ParseLong(items[headers.IndexOf("avgVolume")]); // as requested
stock.LastSale = ParseFloat(items[headers.IndexOf("lastPrice")]);
}
}
stock.DateString = DateTime.Now.Date.ToString();
return(stock);
}
