public async Task GetAllExchangesAndPairs()
{
var result = await _gateway.AllExchangePairs();
Assert.True(result.IsSuccess);
Assert.NotEmpty(result.Content);
Assert.True(result.Content.Exists(e => e.Pairs.Count > 0));
}
public async Task ImportAllExchangePairs()
{
var result = await _cryptoCompareGateway.AllExchangePairs();
List <ExchangePairsDTO> exchangePairsDTOs = result?.Content;
List <Exchange> exchanges = _coreDBContext.Exchanges.AsEnumerable().Where(e => exchangePairsDTOs?.Exists(d => d.Name == e.Name) == true).ToList();
List <Currency> currencies = await _coreDBContext.Currencies.ToListAsync();
List <ExchangePair> exchangePairs = new List <ExchangePair>();
if (exchangePairsDTOs?.Any() == true)
{
foreach (var exchangeDto in exchangePairsDTOs)
{
Exchange exchange = exchanges?.FirstOrDefault(e => e.Name == exchangeDto.Name);
if (exchange != null)
{
foreach (var pair in exchangeDto.Pairs)
{
Currency currencyFrom = currencies?.FirstOrDefault(c => c.Symbol == pair.CurrencyFrom);
Currency currencyTo = currencies?.FirstOrDefault(c => c.Symbol == pair.CurrencyTo);
if (currencyFrom != null && currencyTo != null)
{
var exchangePair = new ExchangePair
{
ExchangeId = exchange.Id,
CurrencyFromId = currencyFrom.Id,
CurrencyToId = currencyTo.Id,
};
exchangePairs.Add(exchangePair);
}
}
}
}
}
if (exchangePairs.Any())
{
await _coreDBContext.AddRangeAsync(exchangePairs);
await _coreDBContext.SaveChangesAsync();
}
}