Kleidukos/Finlytic
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(core): add internal crypto isin resolution and subtitle mapping

Browse Source
This commit is contained in:
Kleidukos
2026-08-15 19:29:32 +02:00
parent 5a6a50a609
commit 067f1bfdd5
9 changed files with 258 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
FinlyticFundamentals/Services/YahooFinanceScraper.cs
+60 -6
View File
@@ -45,15 +45,18 @@ public class YahooFinanceScraper : IYahooFinanceScraper
{
private readonly YahooFinanceClient _yahooApiClient;
private readonly IYahooFinanceHtmlClient _htmlScraperClient;
private readonly Microsoft.Extensions.Configuration.IConfiguration _configuration;
private readonly IFinlyticLogger<YahooFinanceScraper, FundamentalsDbContext> _finlyticLogger;
public YahooFinanceScraper(
YahooFinanceClient yahooApiClient,
IYahooFinanceHtmlClient htmlScraperClient,
Microsoft.Extensions.Configuration.IConfiguration configuration,
IFinlyticLogger<YahooFinanceScraper, FundamentalsDbContext> finlyticLogger)
{
_yahooApiClient = yahooApiClient;
_htmlScraperClient = htmlScraperClient;
_configuration = configuration;
_finlyticLogger = finlyticLogger;
}
@@ -72,21 +75,72 @@ public class YahooFinanceScraper : IYahooFinanceScraper
var cleanIsin = isin.Trim().ToUpperInvariant();
var symbols = new List<(string symbol, string exchange, int priority)>();
// Crypto / Trade Republic interne ISINs (beginnend mit 'X', z. B. XF000BTC0017)
if (cleanIsin.StartsWith("X", StringComparison.OrdinalIgnoreCase))
{
var (cryptoSubtitle, cryptoName) = await FinlyticCore.Utils.CryptoSubtitleResolver.ResolveCryptoInfoAsync(
cleanIsin, _configuration.GetConnectionString("DefaultConnection"), cancellationToken);
if (!string.IsNullOrWhiteSpace(cryptoSubtitle))
{
var cryptoEur = $"{cryptoSubtitle}-EUR";
var cryptoUsd = $"{cryptoSubtitle}-USD";
symbols.Add((cryptoEur, "Crypto", 0));
symbols.Add((cryptoUsd, "Crypto", 1));
try
{
var searchRes = await _yahooApiClient.SearchAsync(cryptoSubtitle, quotesCount: 10, cancellationToken: cancellationToken);
if (searchRes?.Quotes != null)
{
foreach (var q in searchRes.Quotes.Where(q => !string.IsNullOrEmpty(q.Symbol)))
{
if (!symbols.Any(s => s.symbol.Equals(q.Symbol, StringComparison.OrdinalIgnoreCase)))
{
symbols.Add((q.Symbol, q.Exchange ?? "Crypto", 2));
}
}
}
}
catch { }
await _finlyticLogger.LogInfoAsync(SettingKeys.FundamentalsChannel,
"[YahooFinanceScraper] Resolved Crypto ISIN {Isin} to {Symbol} using Subtitle {Sub}",
cleanIsin, cryptoEur, cryptoSubtitle);
return symbols
.OrderBy(s => s.priority)
.Select(s => new TickerInfoDto { Ticker = s.symbol, Exchange = s.exchange })
.ToList();
}
}
try
{
// 1. Suche via ISIN
// 1. Suche via ISIN - der allererste Ticker von Yahoo Finance ist der absolute Primary Ticker
var primary = await _yahooApiClient.SearchAsync(cleanIsin, quotesCount: 20, cancellationToken: cancellationToken);
var quotes = primary?.Quotes ?? new List<YahooSearchQuoteDto>();
var validQuotes = quotes.Where(q => !string.IsNullOrEmpty(q.Symbol)).ToList();
foreach (var q in quotes.Where(q => !string.IsNullOrEmpty(q.Symbol)))
if (validQuotes.Count > 0)
{
symbols.Add((q.Symbol, q.Exchange ?? string.Empty, GetExchangePriority(q.Symbol, cleanIsin)));
var first = validQuotes[0];
symbols.Add((first.Symbol, first.Exchange ?? string.Empty, 0));
foreach (var q in validQuotes.Skip(1))
{
if (!symbols.Any(s => s.symbol.Equals(q.Symbol, StringComparison.OrdinalIgnoreCase)))
{
symbols.Add((q.Symbol, q.Exchange ?? string.Empty, Math.Max(1, GetExchangePriority(q.Symbol, cleanIsin))));
}
}
}
// 2. Falls Ticker gefunden, aber mit Unternehmensname noch mehr Exchangeticker auffindbar sind
if (quotes.Count > 0)
if (validQuotes.Count > 0)
{
var companyName = quotes[0].LongName ?? quotes[0].ShortName;
var companyName = validQuotes[0].LongName ?? validQuotes[0].ShortName;
if (!string.IsNullOrWhiteSpace(companyName))
{
var secondary = await _yahooApiClient.SearchAsync(companyName, quotesCount: 20, cancellationToken: cancellationToken);
@@ -95,7 +149,7 @@ public class YahooFinanceScraper : IYahooFinanceScraper
if (!string.IsNullOrEmpty(q.Symbol) &&
!symbols.Any(s => s.symbol.Equals(q.Symbol, StringComparison.OrdinalIgnoreCase)))
{
symbols.Add((q.Symbol, q.Exchange ?? string.Empty, GetExchangePriority(q.Symbol, cleanIsin)));
symbols.Add((q.Symbol, q.Exchange ?? string.Empty, Math.Max(1, GetExchangePriority(q.Symbol, cleanIsin))));
}
}
}