/// <summary>
/// Get company list.
/// </summary>
/// <param name="exchange">The exchange to get the company names.</param>
/// <returns>List of companies.</returns>
public async Task <IEnumerable <Company> > GetCompanyListAsync(ExchangeSymbol exchange)
{
string url = $"https://old.nasdaq.com/screening/companies-by-name.aspx?exchange={exchange}&render=download";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip, deflate, br");
request.Headers.Add(HttpRequestHeader.AcceptLanguage, "en-US,en;q=0.9");
using (HttpWebResponse response = (HttpWebResponse)(await request.GetResponseAsync()))
using (Stream responseStream = response.GetResponseStream())
using (TextReader reader = new StreamReader(responseStream))
{
string[] header = CSV.Import(reader);
IEnumerable <Company> companies = CSV.ImportToArray(reader)
.Select(r => new Company
{
Symbol = r[0],
Name = r[1],
LastSale = Parse.NullFloat(r[2]),
MarketCap = r[3],
IPOyear = Parse.NullInt(r[4]),
Sector = r[5],
Industry = r[6],
SummaryQuote = r[7]
});
return(companies.ToArray());
}
//// "Symbol","Name","LastSale","MarketCap","IPOyear","Sector","industry","Summary Quote",
//// https://old.nasdaq.com/screening/companies-by-industry.aspx
//// https://api.nasdaq.com/api/screener/stocks?tableonly=true&limit=25&offset=0&download=true
}
public async Task TestGetCompanyListAsync(ExchangeSymbol exchange)
{
var client = new NasdaqCompanyListClient();
IEnumerable <Company> result = await client.GetCompanyListAsync(exchange);
Assert.NotNull(result);
Assert.True(result.Any(), $"No results for {exchange}.");
Company company = result.First();
Assert.IsType <string>(company.Symbol);
}
public override int GetHashCode()
{
unchecked
{
var hashCode = (SymbolId != null ? SymbolId.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (ExchangeId != null ? ExchangeId.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (ExchangeSymbol != null ? ExchangeSymbol.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (BaseAsset != null ? BaseAsset.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (QuoteAsset != null ? QuoteAsset.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (TradeTypeAsString != null ? TradeTypeAsString.GetHashCode() : 0);
return(hashCode);
}
}
public static List <ExchangeSymbol> GetSymbols(List <Exchange> exchanges)
{
List <ExchangeSymbol> exchangeSymbols = new List <ExchangeSymbol>();
foreach (Exchange exchange in exchanges)
{
ExchangeSymbol exchangeSymbol = new ExchangeSymbol();
exchangeSymbol.Exchange = exchange;
exchangeSymbol.Symbols = GetSymbolForMarket(exchange);;
exchangeSymbols.Add(exchangeSymbol);
}
return(exchangeSymbols);
}
