////////////
public HistoryConvert AddItemHistory(HistoryConvert model)
{
Currency currentCurrency = _convertContext.currencies.Where(x => x.Id.Equals(model.FromCurrencyId)).FirstOrDefault();
Currency finishcurrency = _convertContext.currencies.Where(x => x.Id.Equals(model.ToCurrencyId)).FirstOrDefault();
string jsonpathfrom = "https://api.exchangeratesapi.io/latest?base=" + currentCurrency.CurrencyName;
WebClient web = new WebClient();
Stream stream = web.OpenRead(jsonpathfrom);
string jsonconfiguration;
using (var reader = new StreamReader(stream))
{
jsonconfiguration = reader.ReadToEnd();
}
decimal requiredCoefficient;
Root result = JsonConvert.DeserializeObject <Root>(jsonconfiguration);
var jo = JObject.Parse(jsonconfiguration).SelectToken("rates").ToObject <Dictionary <string, decimal> >();
foreach (KeyValuePair <string, decimal> item in jo)
{
if (item.Key == finishcurrency.CurrencyName)
{
requiredCoefficient = item.Value;
model.ToAmount = model.FromAmount * requiredCoefficient;
try
{
_convertContext.Add(model);
_convertContext.SaveChanges();
}
catch (System.Exception)
{
return(null);
}
}
}
return(model);
}