public async Task <List <Currency> > UpdateCurrencies()
{
// Start watch
var stopwatch = new Stopwatch();
stopwatch.Start();
// Get all currencies from CoinMarketCap
var result = await _coinpaprikaClient.GetTickersAsync();
var tickers = result.Value.Where(x =>
x.Id == "btc-bitcoin" ||
x.Id == "xrp-xrp" ||
x.Id == "eth-ethereum" ||
x.Id == "bch-bitcoin-cash" ||
x.Id == "xlm-stellar" ||
x.Id == "eos-eos" ||
x.Id == "ada-cardano").ToList();
// Build currencies
var newCurrencies = _mapper.Map <List <Currency> >(tickers);
// Get all currencies
var currencies = await _mainDbContext.Currencies.ToListAsync();
// Update
_mainDbContext.UpdateCollection(currencies, newCurrencies);
// Save
await _mainDbContext.SaveChangesAsync();
// Stop watch
stopwatch.Stop();
// Log into Splunk
_logger.LogSplunkInformation("UpdateCurrencies", new
{
newCurrencies.Count,
ExecutionTime = stopwatch.Elapsed.TotalSeconds
});
// Return
return(newCurrencies);
}
static async Task TestTickerAllAsync()
{
Console.WriteLine("fetching ticker...");
var ticker = await _client.GetTickersAsync(new[] { "USD", "BTC" });
if (ticker.Error == null)
{
Console.WriteLine("CoinPaprika Tickers: ");
foreach (var t in ticker.Value.OrderBy(c => c.Rank))
{
Console.WriteLine($"{t.Name}({t.Id}({t.Symbol})) - {t.Rank} - BTC:{t.Quotes["BTC"].Price}/USD:{t.Quotes["USD"].Price} - PercentChange24h:{t.Quotes["BTC"].PercentChange24H}%(BTC)/{t.Quotes["USD"].PercentChange24H}%(USD)");
}
Console.WriteLine("Press any key to finish test...");
Console.ReadLine();
Console.WriteLine("Bye!");
}
}
public async Task <List <Currency> > ImportCurrencies()
{
// Start watch
var stopwatch = new Stopwatch();
stopwatch.Start();
// Get all currencies from CoinMarketCap
var result = await _coinpaprikaClient.GetTickersAsync();
var tickers = result.Value.Where(x =>
x.Symbol == "BTC" ||
x.Symbol == "XRP" ||
x.Symbol == "ETH" ||
x.Symbol == "BCH" ||
x.Symbol == "XML" ||
x.Symbol == "EOS" ||
x.Symbol == "ADA").GroupBy(x => x.Symbol).Select(x => x.First()).ToList();
// Build currencies
var newCurrencies = _mapper.Map <List <Currency> >(tickers);
// Get all currencies
var currencies = await _mainDbContext.Currencies.ToListAsync();
// Update
_mainDbContext.UpdateCollection(currencies, newCurrencies);
// Save
await _mainDbContext.SaveChangesAsync();
// Stop watch
stopwatch.Stop();
// Log
_logger.LogInformation("{@Event}, {@Count}, {@ExecutionTime}", "CurrenciesImported", newCurrencies.Count, stopwatch.Elapsed.TotalSeconds);
// Return
return(newCurrencies);
}
