public async Task <IData> ReadDataAsync(DateTime @from, DateTime to)
{
if (to - from > TimeSpan.FromDays(options.MaxDateRange))
{
from = to.AddDays(-options.MaxDateRange);
}
var url = $"{options.Url}USD/{from:yyyy-MM-dd}/{to:yyyy-MM-dd}";
var httpResponse = await httpClient.GetAsync(url);
var stringMessage = await httpResponse.Content.ReadAsStringAsync();
if (!httpResponse.IsSuccessStatusCode)
{
throw new Exception($"Cannot get exchange rate because: {stringMessage}.");
}
var response = JsonConvert.DeserializeObject <ExchangeRatesResponse>(stringMessage);
var data = new GoldRatesData
{
Name = "Exchange Rates",
Rates = response.Rates.ToDictionary(s => s.EffectiveDate.ToDateTime(), s => s.Mid)
};
return(data);
}
public async Task <IData> ReadDataAsync(DateTime from, DateTime to)
{
if (to - from > TimeSpan.FromDays(options.MaxDateRange))
{
from = to.AddDays(-options.MaxDateRange);
}
var url = $"{options.Url}?startDate={from:yyyy-MM-dd}&endDate{to:yyyy-MM-dd}&token={options.Token}";
var httpResponse = await httpClient.GetAsync(url);
var stringMessage = await httpResponse.Content.ReadAsStringAsync();
if (!httpResponse.IsSuccessStatusCode)
{
throw new Exception($"Cannot get gold rate because: {stringMessage}.");
}
var response = JsonConvert.DeserializeObject <IEnumerable <StockExchangeRatesResponse> >(stringMessage);
var data = new GoldRatesData
{
Name = "Stock Exchange Rates",
Rates = response.ToDictionary(s => s.date, s => s.close)
};
return(data);
}