public static async Task <ExchangeRatesSeries> GetCurrencyExchangeRatesAsync(string currency)
{
ExchangeRatesSeries res = new ExchangeRatesSeries();
using (HttpClient client = new HttpClient())
{
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage response = await client
.GetAsync($"http://api.nbp.pl/api/exchangerates/rates/c/{currency}/?format=json")
.ConfigureAwait(false);
if (response.IsSuccessStatusCode == true)
{
string apiResponse = response.Content.ReadAsStringAsync().Result;
res = JsonConvert.DeserializeObject <ExchangeRatesSeries>(apiResponse);
}
}
return(res);
}
public async Task SaveRate()
{
var response = await Client.GetAsync(
"/api/exchangerates/rates/a/chf/");
response.EnsureSuccessStatusCode();
var exchangeRate = await response.Content.ReadAsStringAsync();
XmlSerializer serializer = new XmlSerializer(typeof(ExchangeRatesSeries), new XmlRootAttribute("ExchangeRatesSeries"));
StringReader stringReader = new StringReader(exchangeRate);
ExchangeRatesSeries exchangeRatesSeries = (ExchangeRatesSeries)serializer.Deserialize(stringReader);
_context.ExchangeRate.Add(new ExchangeRate()
{
Code = exchangeRatesSeries.Code, Table = exchangeRatesSeries.Table, Currency = exchangeRatesSeries.Currency, Rates = new List <Rate>()
{
ToExchangeRateMap(exchangeRatesSeries.Rates)
}
});
await _context.SaveChangesAsync();
}
